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In the construction industry, payment delays, disputes, and nonpayment are common challenges. When those issues arise, a mechanics lien becomes one of the most powerful tools available to contractors, subcontractors, and material suppliers. Understanding how a mechanics lien works is essential to protecting your right to payment and maintaining financial stability on your projects.

What is a mechanics lien?

A mechanics lien is a legal claim placed against a property by a party who has provided labor, materials, or services but has not been paid. This claim acts as a security interest in the property, making it difficult for the owner to sell, refinance, or transfer ownership until the debt is resolved.

Because of this, mechanics liens often create enough pressure to prompt payment even before any legal enforcement begins.

How the mechanics lien process works

While lien laws vary by state, the mechanics lien process generally follows a similar structure:

1. Sending a preliminary notice

The first step in protecting your lien rights is sending a preliminary notice at the beginning of a project. Depending on your role in the project, serving a preliminary notice may be a legal requirement before you can file a mechanic’s lien.

Preliminary notices inform key parties such as the property owner, general contractor, and lender of your involvement in the project and your right to file a lien if you are not paid.

Because accuracy is critical, CNS performs in-depth research and verification to identify the correct parties such as the owner, direct contractor, and lender to ensure your notice is properly prepared and delivered. This helps reduce the risk of errors that could jeopardize your lien rights.

2. Performing work and monitoring payment

Once work begins, it is important to maintain accurate records of labor, materials, and invoices. If payment issues arise, these records will support your claim.

In some cases, monitoring project milestones such as the recording of a Notice of Completion can impact lien deadlines. CNS offers a Notice of Completion search and monitoring service, allowing customers to check for recorded notices or monitor a jobsite for filings over a 365 day period.

3. Filing the mechanics lien

If payment is not received, the next step is to file a mechanics lien. This involves preparing a lien document that meets state specific requirements and recording it with the county where the project is located.

For example, California does not have a single standardized lien form but instead requires specific information to be included in the claim. Additionally, the lien must be properly served to the property owner using approved delivery methods such as certified mail, registered mail, express mail, or overnight delivery.

Filing requirements and deadlines vary by state. Missing a deadline or making an error in the filing process can result in the loss of your lien rights.

4. Serving the lien

After recording, a copy of the lien must be sent to the required parties. Proper service is critical, as failure to meet service requirements can render the lien unenforceable.

5. Enforcement or resolution

Once filed, a mechanics lien often leads to one of the following outcomes:

• Payment and lien release
• Negotiation between parties
• Legal enforcement through foreclosure

In many cases, simply filing the lien is enough to prompt payment.

If enforcement becomes necessary, a lawsuit must be filed within the required timeframe. For example, in California, enforcement must begin within 90 days of recording the lien.

CNS is not a law firm and does not assist with enforcing mechanics liens. However, we can refer customers to trusted law firms if legal action is required.

Important deadlines to keep in mind

Mechanics lien deadlines vary by state and are strictly enforced. For example:

• California: Generally 90 days after completion, or shorter if a Notice of Completion is recorded
• Arizona: Typically 120 days after completion, or 60 days from a Notice of Completion
• Other states such as Nevada, Oregon, and Washington each have their own timelines

Even if a lien is not enforced within the required period, it does not automatically disappear and may still help encourage payment by affecting the property.

How CNS supports the lien process

Filing a mechanics lien requires accurate information, proper formatting, and strict adherence to legal requirements. CNS provides services designed to simplify this process.

Our services include:

• Property ownership research and verification
• Document preparation based on state requirements
• County recording of the lien
• Certified mailing to required parties
• Preparation of proof of service affidavits

CNS also performs extensive research when preparing preliminary notices and all other documents within our services to identify all required parties, even when that information is not readily available.

In addition, we offer Notice of Completion search and monitoring services to help customers stay informed about filings that may impact lien deadlines.

Mechanics liens as a collection strategy

Mechanics liens are not only a legal tool but also a practical part of a collection strategy. In many cases, contractors use liens to apply pressure and encourage payment, even if they do not intend to enforce the lien in court.

Conclusion

A mechanics lien is one of the most effective tools in the construction industry for securing payment. By placing a legal claim on a property, it creates urgency and accountability within the payment chain.

However, the process involves strict rules, deadlines, and documentation requirements that vary by state. Every step must be handled carefully to maintain your lien rights.

CNS helps streamline this process through detailed research, accurate document preparation, and full service lien filing, allowing you to focus on your projects while protecting your right to payment.

Disclaimer: CNS is not a law firm and cannot provide legal advice. For legal assistance, please consult a qualified construction attorney.

Contact us today to file a mechanics lien.

Or, if you haven’t already, get a pre-lien started to secure your lien rights.

Prefer to call? You can reach us at 800-366-5660.

In the construction industry, payment delays are an unfortunate reality. When invoices go unpaid, contractors, subcontractors, and suppliers often turn to one of the most powerful tools available to them: the mechanics lien.

A mechanics lien places a legal claim on a property for unpaid work or materials, which can prevent the property from being sold or refinanced until the issue is resolved. Because of the pressure a lien places on the property owner and others in the payment chain, it is often effective in prompting payment, even before any legal action is taken.

However, one of the most common questions contractors ask is: How long do you have to wait before putting a lien on a house?

The answer depends on several factors, including your state, your role on the project, and whether certain notices were recorded during construction. Understanding these timelines is critical because missing a deadline could mean losing your lien rights altogether.

The First Step: Preliminary Notices

Before you can file a mechanics lien in many states, you must first send a preliminary notice. This document informs the property owner, general contractor, and the construction lender (if there is one) that you are working on the project and have the right to file a lien if you are not paid.

Preliminary notices are typically required at the beginning of a project and must be sent within a strict timeframe. For example:

• California: Within 20 days of first providing labor or materials
• Arizona: Within 20 days of first providing labor or materials
• Nevada: Within 31 days of first providing labor or materials
• Oregon: Within 8 working days of first providing labor or materials
• Washington: Within 10 days of first providing labor or materials
• Florida: Within 45 days of first providing labor or materials

Sending a preliminary notice is essential because failing to do so may eliminate your ability to file a mechanics lien later. In many states, these notices are the legal foundation that preserves your lien rights.

Arizona is a good example of how strict these requirements can be. In that state, all contractors, including general contractors, must send a 20-day preliminary notice in order to preserve their right to file a lien.

When You Can File a Mechanics Lien

Contrary to what some contractors believe, you do not usually have to wait months after finishing a project to file a lien. In most cases, you can file once payment is overdue, as long as you are within your state’s filing window.

The important factor is the deadline, which varies by state and sometimes by your role on the project.

Here are a few examples:

California

General contractors:

• 90 days after project completion, or
• 60 days after a Notice of Completion or Cessation is recorded

Subcontractors and suppliers:

• 90 days after completion, or
• 30 days after a Notice of Completion or Cessation

Arizona

• 120 days after project completion, or
• 60 days after a Notice of Completion is recorded

Nevada

• 90 days after project completion, or
• 40 days after a Notice of Completion

Washington

• 90 days after last providing labor or materials

Because these deadlines vary significantly between states, contractors should always verify the specific rules that apply to their project location.

The Role of a Notice of Completion

A Notice of Completion (NOC) can shorten the time available to file a mechanics lien.

When a property owner or direct contractor records this notice with the county, it signals that the project has officially been completed. Once recorded, the clock starts ticking on a shorter lien filing deadline for many parties involved in the project.

For example, in California a subcontractor normally has 90 days after completion to file a lien, but if a Notice of Completion is recorded, that deadline can shrink to just 30 days.

Because these notices can drastically impact your timeline, many contractors choose to monitor county records to see whether a Notice of Completion has been filed for a project.

CNS offers a Notice of Completion search and monitoring service that scans county records for filings tied to a specific jobsite address. Contractors can order a one-time “flash” search or choose a monitoring option that checks for new filings for the next 365 days.

What Happens After You File a Lien

Filing a mechanics lien does not automatically mean you will end up in court.

In many cases, the lien itself is enough to prompt payment. Property owners often want the lien removed quickly so they can sell, refinance, or move forward with the project.

However, if payment still does not occur, the next step may involve enforcing the lien through a foreclosure lawsuit. This legal action must be handled by an attorney.*

For example:

• In California, a lawsuit to enforce the lien must be filed within 90 days after the lien is recorded.
• In Arizona, enforcement must begin within 6 months of recording the lien.

If legal enforcement is not initiated within the required timeframe, the lien may no longer be enforceable in court.

However, it’s important to understand that even when a lien becomes unenforceable, it can still create pressure that encourages payment. Contractors sometimes use liens strategically as part of a broader collection effort.

*Disclaimer: CNS is not a law firm and cannot provide legal advice. For legal assistance, please contact a qualified construction attorney.

Common Mistakes That Cost Contractors Their Lien Rights

Mechanics lien laws are highly technical, and even small mistakes can cause serious problems. Some of the most common issues include:

• Failing to send a preliminary notice within the required timeframe
• Filing the lien after the legal deadline
• Missing a shortened deadline triggered by a Notice of Completion
• Serving the lien incorrectly to the property owner or other required parties

For example, California law requires that copies of the lien be served using registered mail, certified mail, express mail, or overnight delivery through an express carrier. Improper service can make the lien unenforceable.

Another misconception is that lien service providers track all project milestones. In reality, companies like CNS rely on information provided by the contractor or publicly recorded documents. Because project events such as completion dates are not automatically reported to lien service providers, contractors should always stay aware of their own project timelines.

How CNS Supports Contractors

CNS has been supporting contractors, subcontractors, and material suppliers with construction notice services for decades.

Our services focus on the accurate preparation and processing of construction notices and mechanics liens, helping contractors protect their right to payment while avoiding common filing mistakes.

For example, when preparing preliminary notices, CNS performs extensive research and verification to identify the correct parties that must receive the notice, such as the property owner, general contractor, and construction lender. This ensures that the notice reaches the right recipients and preserves your lien rights.

CNS also offers Notice of Completion search and monitoring services, allowing contractors to check whether a notice has been recorded on a project address.

While CNS can prepare and file mechanics liens, we are not a law firm and cannot assist with enforcing a lien in court. If enforcement becomes necessary, we can refer you to a law firm we trust. 

Conclusion: Timing Is Everything

So how long do you have to wait before putting a lien on a house?

In most cases, you don’t need to wait long at all, but you must stay within your state’s strict filing deadlines. These deadlines often depend on:

• When the project was completed
• Whether a Notice of Completion was recorded
• Your role on the project
• Whether a preliminary notice was sent

Because lien laws vary widely by state and missing a deadline can eliminate your rights entirely, understanding these timelines is essential for protecting your payment.

Mechanics liens remain one of the most effective tools available to contractors dealing with slow pay, short pay, or no pay situations. When used correctly, they can provide the leverage needed to resolve payment disputes and keep your business financially secure.

Get Started Today

If you need to file a mechanics lien or send a preliminary notice, contact CNS today at 800-366-5660. Our team can help you prepare and process the construction notices needed to protect your right to payment.

Disclaimer: CNS is not a law firm and cannot provide legal advice. For legal assistance, please contact a qualified construction attorney.

Understanding the Conditional Progress Release In construction, protecting your right to payment is critical. With long billing cycles, payment disputes, and multiple parties involved on every project, contractors need effective legal tools to stay ahead of nonpayment situations.

Oftentimes, a “condition” to receiving payment is to provide your customer with a lien waiver. Choosing the right one is critical so you don’t release your rights to a greater extent than you intend.

A conditional progress release is used to facilitate payment before money is received. This typically occurs during pre-agreed upon intervals such as on a monthly basis or as certain progress milestones have been met. The conditional progress release is not mandatory but is often required as a pre-requisite to receive payment.

In this article, we will explain what a conditional progress release is, when to use it, how it works, and how it differs from an unconditional release.

What is a Conditional Progress Release

A conditional progress release is a legal document that waives your right to file a lien for a portion of your work on a construction project, but only if you are actually paid. The word conditional means that the waiver only takes effect once the payment clears. If the payment is not made or is reversed, the waiver has no legal effect and your lien rights remain protected.

This type of release is typically used during ongoing projects when you are submitting an invoice or draw request. By signing a conditional progress release, you are stating that you will waive your lien rights for the amount invoiced, but only if payment is received.

It is important to understand that this form does not eliminate your lien rights immediately. It only promises to waive your right to file a lien for a specific portion of work, only after payment is received and verified.

When Contractors Should Use a Conditional Progress Release

Contractors should use a conditional progress release whenever they are requesting a progress payment and have not yet received the funds. This includes situations such as:

• Submitting a draw request for work performed to date
• Accepting a check that has not yet cleared
• Waiting on a wire transfer or payment through a pay app
• Responding to a request from a lender or general contractor before funds are released

In all of these cases, using a conditional progress release protects your right to file a lien in case the payment falls through. It is the safest form to use during active payment processing and should be your default release for every progress billing cycle.

What a Conditional Progress Release Includes

Each state may have slightly different requirements for lien waivers, but a conditional progress release typically includes:

• The name and address of the project
• The name of the property owner and general contractor
• A description of the work or materials being covered
• The payment amount
• The date through which the work was performed
• Language that confirms the waiver is conditional on receipt of payment

In some states, such as California, the form must include exact statutory language to be valid. Using the wrong form or modifying the required language could result in the waiver being rejected or legally ineffective.

Contractors should review the document carefully and ensure it only applies to work that has been billed, not future work or retention, and that it matches the scope and amount of the current invoice.

Conditional Progress Release vs. Unconditional Release

Choosing between a conditional and unconditional progress waiver can mean the difference between safeguarding your lien rights or unintentionally giving them away. 

While both forms release lien rights for a specific progress payment, one does so only after money is actually in hand, and the other takes effect upon signing, regardless of whether payment clears.

A conditional progress release helps maintain trust between parties and keeps payments flowing without giving up legal protection too early. An unconditional progress waiver, by contrast, immediately releases lien rights for the stated amount regardless of whether payment has actually been received, which can be risky if the check later bounces or payment is disputed

Why Understanding the Difference Matters

Signing the wrong type of lien waiver can result in permanently giving up your right to payment. If you accidentally sign an unconditional release before receiving funds, you may have no legal recourse if the payment never arrives. This is why it is critical to always use a conditional progress release when you are still waiting for payment.

Owners and lenders often require signed lien waivers before releasing funds. Contractors should never feel pressured to sign a waiver that does not match the actual payment status. Using a conditional release helps meet these requirements while protecting your interests.

What CNS Offers

To further protect your lien rights and streamline compliance, CNS offers comprehensive preliminary notice services designed to keep your projects on track from the start. 

When you use our platform, you not only ensure timely and accurate preliminary notices, but you also gain the ability to generate, store, and track signed preliminary waivers in one secure location. This centralized system helps reduce risk, improve documentation, and provide clear visibility into your payment protections at every stage of the project.

Final Thoughts

A conditional progress release is a critical document in construction payment management. It allows you to facilitate payments while protecting your lien rights. By only waiving your rights once payment is received, you reduce your risk without disrupting the flow of work.

Understanding when to use a conditional release can mean the difference between getting paid and losing your legal leverage. Use conditional progress releases during billing cycles, and rely on unconditional releases once the funds are in your account.

To get started with a preliminary notice or mechanics lien, contact CNS today.

Call 800-366-5660 to speak with a member of our team.

Disclaimer: This article is for informational purposes only and is not legal advice. Lien rights and deadlines vary by state and project facts. For guidance on your specific situation, consult a licensed construction attorney.

In the construction industry, protecting your right to payment often comes down to how well you navigate complex lien laws. A properly filed mechanics lien can be the deciding factor between recovering what you’re owed and absorbing a financial loss. But while the value of a lien is clear, the cost of filing one is not always so transparent.

Many lien service providers advertise low initial prices but charge additional fees for necessary steps in the process—recording the lien, mailing it to the required parties, or preparing service documentation. Others require monthly or yearly subscriptions just to access filing tools, regardless of whether you need them regularly. Some even hand the responsibility back to you, expecting you to record and serve the lien on your own.

At CNS, our lien filing service is offered at a flat rate of $395. That price includes county recording fees, postage, applicable taxes, and affidavit preparation. There are no contracts, subscriptions, or surprise charges. This article outlines the common hidden costs in the lien filing industry, how they affect your bottom line, and why a complete, transparent service like CNS matters.

Hidden Costs in the Lien Filing Industry

Mechanics lien laws vary by state and are governed by specific requirements regarding timing, content, service, and recording. When a lien service provider leaves any part of this process incomplete—or charges extra for essential steps—you take on more work, more liability, and more financial risk.

Here are the most common areas where hidden fees can appear:

1. County Recorder Fees

Filing a mechanics lien requires that the lien be recorded in the county where the project took place. Every county charges a recording fee, and this cost can vary depending on the number of pages and other document-specific factors.

Many lien service providers advertise a base price that does not include these fees. Once your documents are prepared, you may be asked to pay extra to have them recorded—or you might be told to handle the recording yourself.

With CNS, standard county recording fees are already included in the flat $395 price. There are no additional charges to have your lien officially filed with the appropriate county office*.

2. Postage and Mailing Charges

Most states require that a copy of the recorded mechanics lien be sent to specific parties involved in the project. For example, in California, the lien must be served on the property owner using certified or registered mail, express mail, or overnight delivery by an express service carrier. Even though not required, CNS will also send a copy of the lien to the general contractor, and the lender (if one exists).

Failing to serve the lien correctly can result in it being unenforceable, even if it was recorded properly. Some services may prepare the lien for you but leave it to you to print, address, and mail it—or charge extra for each mailing.

CNS includes postage and mailing in its lien filing service. The proper parties are served using the appropriate delivery method, and all associated costs are already factored into the base price.

3. Proof of Service and Affidavit Preparation

In many jurisdictions, lien claimants must provide documentation proving that the lien was served to the required parties. This typically takes the form of a proof of service affidavit or certificate of mailing. If a lien must be enforced, this documentation becomes a key part of any legal proceeding.

Some providers may not include affidavit preparation in their base pricing or may require you to complete these documents yourself.

CNS prepares the necessary affidavits and includes this as part of the service. The documents you receive are ready for your records and compliant with service and recording requirements in the applicable jurisdiction.

4. Subscription Fees and Contracts

Another common issue is the growing trend toward subscription-based lien services. These providers require users to sign up for monthly or yearly plans in order to access filing tools or platforms. Some packages are tiered based on the number of filings per month or year, while others are bundled with unrelated features or services.

This approach may seem convenient if you’re managing dozens of projects at once. However, the construction industry is seasonal and often inconsistent. During slower months, contractors and suppliers may not need to file any notices or liens. In these cases, a subscription becomes an ongoing cost without corresponding value.

CNS does not require a subscription or any form of recurring contract. You pay only for what you need, when you need it. Whether you need to file one lien or several, the pricing remains the same, and there is no obligation to continue using the service unless you choose to.

The Risk of “Self-Serve” Lien Services

Beyond hidden fees and subscription models, some providers operate on a do-it-yourself basis. They may provide you with a template or partially completed lien form and expect you to manage the rest. This includes:

• Finalizing and printing the document
• Ensuring compliance with state-specific requirements
• Notifying all necessary parties
• Recording the lien at the correct county recorder’s office
• Preparing and retaining proof of service

This approach places the burden of compliance entirely on the contractor, subcontractor, or supplier. If you misfile the lien, serve the wrong parties, or miss a key deadline, you may lose your lien rights altogether.

Using a full service lien provider reduces the likelihood of mistakes and provides you with a properly recorded and served lien, along with the documentation necessary to proceed if further action is required.

What CNS Provides for $395

CNS offers full-service mechanics lien filing for a flat rate of $395. That price includes:

• Property ownership research & verification
• Document Preparation
• County recorder fees for filing the lien
• Postage and certified mailing to the required parties
• Affidavits and proof of service

Most importantly, CNS handles the recording of the lien with the county. You are not required to file the lien yourself or complete any steps involving delivery or documentation preparation. This ensures consistency, compliance with applicable requirements, and greater peace of mind for contractors, subcontractors, and suppliers.

CNS has over 41years of experience supporting the construction industry with accurate and efficient notice and lien services. While CNS does not offer legal advice or assistance with enforcing a lien, we can refer you to one of our partner law firms should enforcement become necessary.

Conclusion: Price Transparency Matters

Mechanics liens are powerful tools that help contractors and suppliers recover payment, but only when filed correctly. Choosing a lien service should come down to two things: trust and transparency.

If you are comparing prices between service providers, ask what is actually included. Are you responsible for filing the lien yourself? Will you need to mail it to the required parties? Are affidavit preparation and recorder fees included? Is there a subscription or contract involved?

At CNS, there is no guesswork. The price is $395, and that includes everything needed to file and serve a lien properly—without passing the work or hidden costs back to you.

Get Started Today
To file a mechanics lien or speak with a CNS representative, call 800-366-5660. We are ready to help you protect your right to payment with clear, complete, and professional service.

Disclaimer: CNS is not a law firm and cannot provide legal advice. For legal assistance, please contact a qualified construction attorney.

*Pricing subject to change, unique or exceptional circumstances may lead to additional lien-related fees.

In the construction industry, getting paid for your work shouldn’t be uncertain—but without the proper protections, it often can be. For subcontractors, payment delays and disputes are common, whether due to slow pay, short pay, or no pay situations. One of the best ways to safeguard your right to payment is by sending a preliminary notice at the start of every project.

Unfortunately, many subcontractors misunderstand what a prelim really is. Some see it as a legal formality; others worry it might harm relationships with general contractors or owners. In reality, preliminary notices are one of the most practical tools you can use to protect your business and ensure smoother payments.

In this article, we’ll uncover the truth about preliminary notices, clear up common misconceptions, and explain why every contractor, subcontractor and supplier should make them a standard part of their process.

What Is a Preliminary Notice?

A preliminary notice—often called a “prelim” or “pre-lien”—is a written document sent at the beginning of a construction project. It notifies the property owner, general contractor, and lender (if applicable) that you are providing labor, materials, or services on the project.

While preliminary notices are a legal requirement to protect your mechanics lien rights, they also act as an introduction to your company. A properly prepared prelim says:

“Here’s who we are, here’s the work we’re doing, and here’s how much we expect the work to cost.”

This professional transparency builds trust, prevents misunderstandings, and establishes a clear line of communication from the very start.

1. They’re Required by Law—Even for General Contractors

It’s a common misconception that only subcontractors or suppliers need to send preliminary notices. The truth is that all contractors, including general contractors, to send prelims under specific conditions.

• In California, a general contractor must send a preliminary notice if there is a lender involved on the project, or if they are working for someone other than the property owner—for example, performing tenant improvement work in a leased space.
• In Arizona, all contractors—including GCs—must send a 20-day preliminary notice for every job, without exception.

Failing to send a prelim within the required timeframe can result in the loss of your mechanics lien rights.

Why this matters: Even if you’re confident your customer will pay, sending a prelim ensures your rights are preserved if something changes down the road.

2. They Improve Communication and Speed Up Payments

Some subcontractors hesitate to send a prelim, worrying it might strain the relationship with a general contractor or property owner. In truth, it often has the opposite effect.

A well-prepared prelim opens the door to clear communication. It lets the GC and owner know exactly who you are and what you’re contributing to the project. If a payment issue arises or clarification is needed, they already have your information on file—avoiding delays or miscommunication.

Sending a prelim also shows that you’re organized and proactive about payment tracking, which helps ensure invoices are processed faster and accurately.

Why this matters: Getting paid promptly keeps your cash flow healthy and minimizes disruptions to your business.

3. They Protect Your Legal Rights—But Only If Sent on Time

Preliminary notices must be sent at the beginning of the project, ideally before the first furnishing of labor or materials.

• California: Must be sent by registered, certified, or express mail, or by overnight delivery through an express service carrier within 20 days of starting work.
• Arizona: Must be sent by first-class mail with a certificate of mailing within 20 days of starting work.
• Oregon: Must be sent certified mail return receipt requested within 8 business days of starting work.
• Nevada: Must be sent certified mail return receipt requested within 31 days of starting work.
• Washington: Must be sent certified mail return receipt requested as early as 10 days of starting work.

If you miss your deadline, you risk losing lien protection for the work performed before the notice was sent. CNS helps mitigate this risk by verifying all parties before mailing and ensuring every prelim is sent through the correct, legally compliant channels.

Why this matters: Timely notices are essential to preserve your mechanics lien rights—waiting too long could cost you the payment protection you need.

4. They Strengthen Professionalism and Reputation

Reputation matters in construction. GCs and property owners prefer to work with subcontractors who understand their responsibilities and follow industry best practices.

When you send a prelim, it signals that your company is professional, organized, and committed to proper documentation. Far from being seen as a threat, a well-prepared prelim often builds confidence with upper-tier parties, because it demonstrates that you’re following the legally required standard procedures.

Why this matters: Professional documentation helps establish trust and credibility—qualities that lead to repeat business and long-term relationships.

5. They Create a Strong Documentation Trail

Sending a prelim is the first step in building a clear, traceable documentation trail for your project. This record helps protect you if payment issues ever escalate.

If you later need to file a mechanics lien, or other claim document such as a Stop Payment Notice or Bond claim, your preliminary notice will show that you followed all required steps, strengthening your legal position. Even if you never file a lien, having this documentation supports your invoicing, internal recordkeeping, and dispute resolution efforts.

Why this matters: Accurate records protect your rights and help your business stay compliant and organized.

Common Misconception: “Prelims Are a Threat to GCs”

Many contractors still believe sending a prelim makes them look untrustworthy—but this is outdated thinking.

General contractors and property owners often prefer working with subcontractors who send prelims because it helps them track payments and prevent lien claims. CNS is not a collection agency, and when we reach out to verify project details, it’s always done professionally and transparently—ensuring all parties understand that the goal is protection, not pressure.

Why Subcontractors Trust CNS

At CNS, we specialize in helping construction professionals over the Western United States prepare and send preliminary notices correctly and efficiently. We don’t just send forms—we provide accuracy, documentation, and peace of mind.

Here’s what makes CNS different:

• Thorough Research: We verify ownership, lender, and contractor details to ensure your prelims are sent to all required parties—even if you don’t have that information.
• USPS-Verified Address Matching: Our partnership with USPS ensures every address is checked for accuracy, reducing the chance of lost or misdirected notices.
• In-House Mailing Team: All notices are processed and mailed directly from our office. We never outsource mailing, which means greater control, fewer errors, and no added third-party costs.
• Transparent, Pay-as-You-Go Pricing: No subscriptions, no contracts, and no hidden fees—you only pay for the services you need.
• Detailed Recordkeeping: Certified mailing receipts and proof of service documentation are provided for your records.

When you choose CNS, you’re choosing a partner that protects your business while maintaining your customer relationships.

Take Control of Your Right to Payment

Don’t wait until a payment dispute arises to protect your rights. Sending a preliminary notice at the start of every job—large or small—is the best way to secure your place in the payment chain.

Contact CNS today at 800-366-5660 to get your next preliminary notice started. Our team will handle the research, preparation, and mailing—so you can focus on completing your work with confidence.

Disclaimer: CNS is not a law firm and cannot provide legal advice. For legal assistance, please contact a qualified construction attorney.

Mechanics’ liens are one of the most powerful tools available to contractors, subcontractors, and suppliers in the construction industry. They protect your right to payment by placing a legal claim on a property when you haven’t been paid for the work or materials you provided. However, lien rights are not indefinite. Every state has strict deadlines determining how long you have to file and enforce a mechanics lien.

Missing a deadline can mean losing your legal right to foreclose on a lien, even if you’ve done the work and haven’t been paid.

In this article, we’ll explain the time limits that apply to mechanics liens so you can stay compliant and protect your right to payment.

Understanding Mechanics Lien Deadlines

To benefit from a mechanics lien, there are two critical deadlines you need to be aware of:

1. The deadline to file your lien.
2. The deadline to enforce your lien (file a lawsuit).

Both vary by state and can depend on your role in the project (general contractor vs. subcontractor or supplier) and whether a Notice of Completion or Cessation has been recorded.

How Long Do You Have to File a Mechanics Lien?

The deadline to file your lien usually begins after you complete the project work. However, the exact timeframe varies by state and can be shortened if a Notice of Completion is recorded.

Here’s a breakdown of some common state timelines:

California

• General Contractors:
  File within 90 days of project completion, or within 60 days of a recorded Notice of Completion or Cessation.
• Subcontractors and Suppliers:
  File within 90 days of project completion, or within 30 days of a recorded Notice of Completion or Cessation.

Arizona

• All contractors (including GCs):
  File within 120 days of project completion, or within 60 days after a Notice of Completion is recorded.

Nevada

• File within 90 days after the project is complete or within 40 days of a Notice of Completion.

Washington

• File within 90 days of last labor or delivery of materials, or within 60 days if the owner files a notice with lien claimants.

Oregon

• File with proper county recorder within 75 days after completion of work of improvement, or 75 days after you cease to provide services or materials, whichever occurs first.

Each state has its own variations and exceptions, so it’s essential to know the rules that apply to your specific situation.

Tip: Some property owners file a Notice of Completion to shorten your lien filing window. CNS offers a Notice of Completion Monitoring and Search service to help you determine whether one has been filed for your project address.

How Long Do You Have to Enforce a Mechanics Lien?

Filing a lien doesn’t automatically get you paid, it simply secures your interest in the property. You may need to enforce the lien through a foreclosure lawsuit to collect what you’re owed.

Each state sets a time limit for filing this lawsuit, and the lien becomes unenforceable if you miss that deadline:

• California:
  Lawsuit must be filed within 90 days of recording the lien.
• Arizona:
  Lawsuit must be filed within 6 months of recording the lien.
• Nevada:
  Lawsuit must be filed within 6 months of recording the lien.
• Washington:
  Lawsuit must be filed within 8 months of recording the lien.
• Oregon:
  Lawsuit must be filed within 120 days after project completion or cessation of labor or materials—not from lien recording.

Once the enforcement deadline passes, you can no longer foreclose on the lien—even if it remains on record.

What Happens if a Lien “Expires”?

It’s important to understand that while the lien may become unenforceable after the enforcement deadline, it doesn’t automatically disappear from county records.

Here’s what that means:

• You lose the legal right to foreclose and collect through the lien.
• The lien may still appear in public records and could cause problems for the property owner trying to sell or refinance.
• The property owner may request or sue to have the lien removed.
• In some cases, even unenforceable liens can result in payment if the property owner wants to clear title.

Note: If you’ve been paid, in whole or in part, it’s essential to file a lien release to avoid legal exposure.

Common Misconceptions About Lien Time Limits

Let’s clear up a few common misunderstandings:

• “Once I file a lien, it’s good forever.”
  False. Lien enforcement deadlines are strictly enforced by law.
• “I can refile the lien if it expires.”
  Only if you’re still within the lien filing window. If that window has passed, you cannot refile.
• “The lien still being recorded means I can enforce it.”
  Incorrect. Just because the lien remains recorded doesn’t mean it’s enforceable in court.

Final Tips to Protect Your Lien Rights

To make sure you don’t miss key deadlines, follow these best practices:

• Send a preliminary notice: In CA and AZ, this is required within 20 days of starting work. Check about your specific state, or reach out to CNS directly.
• Track completion dates carefully: These dates start the clock for lien filing and enforcement.
• Check for Notices of Completion: These can significantly shorten your deadline. CNS can help with searches or ongoing monitoring of job addresses.
• Act early: If you’re unpaid, don’t wait until the last minute to file or enforce your lien.

Mechanics Lien Deadlines Are Strict—But You’re Not Alone

At CNS, we’ve helped contractors, subcontractors, and material suppliers protect their payment rights since 1984. Our mechanics lien services are designed to simplify the process while ensuring your lien is properly prepared and filed.

We do not provide legal services or deadline reminders, but we can assist you with:

• Filing mechanics liens in compliance with your state’s rules.
• Verifying parties for preliminary notices so you’re protected from the start.
• Searching and monitoring Notices of Completion so you can track shortened deadlines.
• Referring you to qualified attorneys if legal enforcement is needed.

Need help getting started?

Contact CNS today at 800-366-5660 to begin preparing your preliminary notice or filing your mechanics lien.

Disclaimer: CNS is not a law firm and cannot provide legal advice. For legal questions or assistance enforcing a lien, we recommend consulting with a licensed attorney.

Getting paid for your work in the construction industry isn’t always straightforward. Delayed payments, short payments, or even no payment at all are unfortunately common. These issues can cause serious problems for contractors, subcontractors, and suppliers trying to maintain steady cash flow.

Fortunately, there are legal tools available to help protect your right to get paid. One of the most effective tools is the mechanics lien, supported by the preliminary notice, which acts as a crucial first step in preserving your lien rights. In this article, we’ll walk through the importance of these protections and how you can use them to secure payment on every project.

What is a Mechanics Lien?

A mechanics lien is a legal claim against a property for unpaid labor, materials, or services provided during a construction project. Filing a lien places pressure on the property owner, general contractor, and lender, as it can prevent the property from being sold or refinanced until the issue is resolved. While it’s often used as a last resort, a mechanics lien is one of the most powerful tools for recovering payment in the construction industry.

However, to file a valid lien, you must meet strict legal requirements. In many states, that process begins with sending a preliminary notice.

What is a Preliminary Notice?

A preliminary notice, sometimes called a pre-lien, 20-day notice, or preliminary lien notice, is a document that informs the property owner, general contractor, and any construction lenders of your involvement in the project. It does not create a lien but is often required by law in order to preserve your right to file one if you are not paid.

Failing to send a preliminary notice could result in the loss of your lien rights entirely. It’s critical to understand your state’s requirements and make sure the notice is sent correctly.

Why is Sending a Preliminary Notice Important?

Sending a preliminary notice is crucial for several reasons:

• Protects Your Right to Payment: Preliminary notices are often required by law to maintain your ability to file a mechanics lien. Without one, you may have no legal recourse if you aren’t paid.
• Improves Communication and Transparency: A preliminary notice informs all parties of your role in the project, helping prevent confusion and payment disputes down the line.
• Helps Reduce Financial Risk: With clear documentation of your participation and expectations, a preliminary notice can help protect you in the event of delayed or disputed payments.
• Builds Trust and Professionalism: Sending a prelim shows that your business follows industry best practices and understands the importance of protecting everyone involved.

Key Requirements for Sending a Preliminary Notice

Preliminary notice rules vary from state to state. Here are the most important factors to consider:

• Timing:
  • California and Arizona: Must be sent within 20 days of first labor or material delivery
  • Nevada: Within 31 days
  • Oregon: Within 8 working days
  • Washington: Within 10 days for new residential work
  • Florida: Within 45 days
  • New Mexico: Within 60 working days
• It’s important to send your notice within the required timeframe for your state. CNS does not track project milestones or deadlines, so be sure to calculate and send your notice on time.
• Recipients: Send the notice to the property owner, general contractor, and any construction lenders. Even general contractors must send preliminary notices in certain cases, such as when working for a tenant or when a lender is involved.
• Mailing Method:
  • Arizona: Requires first-class mail with a certificate of mailing
  • California: Requires certified, registered, express, or overnight delivery
  • Always keep proof of mailing. This documentation may be needed if a lien is later recorded.
• Content: Include your business information, a description of the labor or materials provided, and an estimated total value for your work.

The Process of Sending a Preliminary Notice

Sending a valid preliminary notice involves several steps:

• Gather Project Details: You’ll need accurate names and addresses for the property owner, general contractor, and lender. Mistakes here can cause your notice to be invalid.
• Verify Addresses: CNS uses USPS address verification tools to confirm that your notice is going to the right place. Notices sent to the wrong address may never be received, putting your lien rights at risk.
• Prepare the Notice: Each state has its own rules. CNS prepares notices that comply with your state’s specific requirements to help ensure validity.
• Send the Notice: It is your responsibility to send the preliminary notice before your state’s deadline. CNS handles the mailing process using certified or first-class mail, depending on the legal requirements in your state.
• Maintain Records: Keep copies of the notice, mailing receipt, and certificate of mailing or proof of service. If a mechanics lien is later needed, this documentation may be requested.

Benefits of Using CNS to Protect Your Right to Payment

CNS offers services designed to reduce risk and help ensure your preliminary notices are sent correctly:

• Project Party Verification: We conduct thorough research to identify the required parties, such as owners, GCs, and lenders, even if you don’t have full project details.
• Address Verification: CNS confirms delivery addresses using USPS, and other tools to reduce the chance of lost or misdirected notices.
• In-House Mailing: Our internal mailing team handles the entire delivery process, ensuring accuracy and maintaining full records in case they are needed later.
• Pay-as-You-Go Service: With CNS, you only pay for what you need, with no long-term contracts or hidden fees.
• Support Without Overreach: While CNS does not provide legal advice or track deadlines based on project milestones, we can refer you to qualified attorneys and ensure your notices are properly prepared and mailed.

Conclusion

Payment issues in construction can be costly, but protecting yourself doesn’t have to be complicated. Sending a preliminary notice is the first and most important step to preserving your lien rights. By ensuring that your notice is timely, complete, and properly delivered, you help secure your right to get paid for your work.

At CNS, we help make that process easier by verifying project participants, confirming addresses, and handling delivery — all without locking you into long-term contracts. While it’s your responsibility to know your deadlines, CNS ensures that your notices are accurate and complete.

Contact us today to get a preliminary notice started.
Prefer to call? You can reach us at 800-366-5660.

Disclaimer: CNS is not an attorney, and if you need legal advice, please contact one.