Construction Lien Rights: What Every Contractor Needs to Know to Get Paid | Projul

You did the work. You sent the invoice. And now you’re chasing a check that should have shown up weeks ago.

Every contractor has been there. You’ve got payroll to cover, materials on your credit line, and a client who suddenly can’t find their checkbook. It’s the worst part of this business.

But here’s the thing: the law is actually on your side. Construction lien rights give you a powerful legal tool to make sure you get paid for the work you put into a property. The problem is that most contractors don’t fully understand how these rights work, and by the time they need them, they’ve already missed a critical deadline.

This guide covers everything you need to know about construction lien rights, from preliminary notices to filing deadlines to lien waivers. Whether you’re a general contractor, sub, or supplier, this information can be the difference between getting paid and writing off thousands of dollars in lost revenue.

What Is a Mechanic’s Lien and How Does It Protect Contractors?

A mechanic’s lien is a legal claim against a property. When you perform work or supply materials to improve a property and don’t get paid, a mechanic’s lien gives you a security interest in that property. Think of it as the construction industry’s version of collateral.

Here’s how it works in simple terms: you improve someone’s property, they don’t pay you, so you place a lien on the property. That lien clouds the title, which means the property owner can’t sell or refinance without dealing with your claim first. It’s use, and it’s one of the strongest tools a contractor has.

Mechanic’s lien laws exist in every state, though the specific rules vary quite a bit. The concept dates back to the founding of the country. Thomas Jefferson actually helped create the first mechanic’s lien law in Maryland in 1791 because he understood that the people building structures deserve to get paid.

Who can file a mechanic’s lien?

Generally, anyone who provides labor, materials, or services that improve real property can file a lien. That includes:

• General contractors
• Subcontractors
• Material suppliers
• Equipment rental companies
• Architects and engineers (in most states)
• Laborers

The lien attaches to the property itself, not the person who owes you money. This is important. Even if your contract is with a GC who disappears, you may still have lien rights against the property owner. The owner’s property benefited from your work, and the law recognizes that.

What a lien doesn’t do

A mechanic’s lien doesn’t automatically get you paid. It’s not a judgment. It’s a claim that creates pressure and preserves your right to pursue payment through the courts. If the property owner still refuses to pay after you file a lien, you’ll need to enforce the lien through a foreclosure action (a lawsuit). But most lien disputes never get that far. The lien itself is usually enough to bring everyone to the table.

One more thing worth noting: construction lien rights are “use it or lose it.” Every state has strict deadlines for sending notices and filing liens. Miss a deadline by even one day, and your lien rights are gone. That’s why understanding the process matters so much.

Preliminary Notices: The First Step to Protecting Your Lien Rights

Before you can file a mechanic’s lien in most states, you need to send a preliminary notice. This is a formal document that tells the property owner, GC, and sometimes the lender that you’re working on the project and have the right to file a lien if you don’t get paid.

Think of it as a heads-up. You’re not threatening anyone. You’re simply putting the right people on notice that you exist and that you have construction lien rights on the project.

Why preliminary notices matter

About 40 states require some form of preliminary notice. In states like California, Arizona, and Texas, skipping this step means you lose your lien rights entirely. It doesn’t matter how much you’re owed or how clear the nonpayment is. No preliminary notice, no lien.

Even in states where it’s not required, sending a preliminary notice is smart business. It tells the property owner exactly who is working on their project. On large jobs with multiple tiers of subcontractors, owners often have no idea who all the subs and suppliers are. Your notice makes sure they know you’re there and that you expect to be paid.

When to send a preliminary notice

Timing varies by state, but the general rule is: send it as early as possible. Most states require the notice within 20 to 30 days of when you first furnish labor or materials to the project. In California, it’s 20 days. In Arizona, it’s 20 days. In Texas, the rules differ depending on whether you’re working on a residential or commercial project.

The safest approach is to send a preliminary notice on every single job, within the first week of starting work. Make it part of your standard process. Don’t wait until a payment is late. By then, you may have already blown past the deadline.

What goes in a preliminary notice

The exact requirements vary by state, but most preliminary notices include:

• Your name and contact information
• The name of the person who hired you
• A description of the work or materials you’re providing
• The property address or legal description
• The estimated total amount of your contract

Some states have specific forms you need to use. Others just require that you include certain information. Check your state’s requirements or use a lien service to generate the notice for you.

How to send it

Most states require that preliminary notices be sent by certified mail or registered mail. Some allow personal delivery. A few states now accept electronic delivery. Whatever method you use, keep proof that you sent it and proof that it was received. You’ll need this documentation if you ever file a lien.

The bottom line: preliminary notices are not optional in most states. Build them into your workflow from day one. Your invoicing process should include a step to confirm that preliminary notices have been sent before any work begins.

Filing a Mechanic’s Lien: Step-by-Step Process

When payment doesn’t show up and your calls go unanswered, it’s time to file a mechanic’s lien. The process is straightforward, but you need to follow every step precisely. One mistake can invalidate your entire claim.

Step 1: Confirm your lien rights are intact

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Before you file anything, make sure you’ve met all the prerequisites. Did you send a preliminary notice (if required in your state)? Are you still within the filing deadline? Is your contract valid? If you’re a sub or supplier, do you have documentation of the work you performed or materials you delivered?

This is where keeping solid job records and documentation pays off. Every signed change order, delivery receipt, daily log, and photo of completed work strengthens your lien claim.

Step 2: Prepare the lien document

A mechanic’s lien claim typically includes:

• The claimant’s name and address (that’s you)
• The property owner’s name and address
• A description of the property (legal description or street address)
• A description of the labor or materials you provided
• The amount owed
• The dates you first and last furnished labor or materials
• The name of the person who hired you

Most states have a specific statutory form for mechanic’s liens. Use it. Don’t try to write your own. Many county recorder offices provide blank forms, and lien services can generate them for a fee.

Step 3: File with the county recorder

The lien must be recorded with the county recorder’s office (sometimes called the county clerk) in the county where the property is located. There’s usually a small recording fee. Some counties allow online filing, while others require you to show up in person or mail it in.

Step 4: Serve notice of the lien

Most states require you to send a copy of the recorded lien to the property owner within a certain timeframe after filing. Some states also require notice to the GC or other parties. Again, use certified mail and keep your proof of service.

Step 5: Enforce the lien (if necessary)

Filing the lien doesn’t end the process. If the property owner still doesn’t pay, you have a limited window to file a lawsuit to enforce the lien (foreclose on it). This deadline varies by state but is typically 6 to 12 months after filing. If you don’t file suit within that window, the lien expires and you lose your secured interest.

Most of the time, the lien itself is enough to get things moving. Property owners don’t want liens clouding their title, and lenders don’t want them either. The pressure alone often brings payment within weeks of filing.

Lien Deadlines by State: Why Timing Is Everything

If there’s one thing that trips up contractors with construction lien rights, it’s deadlines. Every state has different timelines, and they’re strict. Courts don’t care if you missed the deadline by one day because you were busy running jobs. Late is late, and late means you lose your rights.

Here’s a snapshot of key deadlines in some of the most active construction states:

California

• Preliminary notice: Within 20 days of first furnishing
• Lien filing: 90 days after completion for direct contractors; 30 days after notice of completion (or 90 days if no notice filed) for subs and suppliers
• Enforcement: 90 days after recording the lien

Texas

• Preliminary notice: Varies by project type (residential vs. commercial) and your role
• Lien filing: By the 15th day of the 3rd month after the month you last provided labor/materials (for most claimants)
• Enforcement: Within 1 year for residential, 2 years for commercial

Florida

• Preliminary notice (Notice to Owner): Within 45 days of first furnishing (for subs and suppliers)
• Lien filing: 90 days after last furnishing labor/materials
• Enforcement: Within 1 year of filing

New York

• Preliminary notice: Not required for most claimants
• Lien filing: 8 months after last furnishing for private projects
• Enforcement: Within 1 year of filing

Arizona

• Preliminary notice: Within 20 days of first furnishing
• Lien filing: 120 days after completion
• Enforcement: Within 6 months of filing

These are simplified summaries. The actual rules in each state have nuances based on your role (GC vs. sub vs. supplier), the type of project (residential vs. commercial vs. public), and other factors. Always verify the current rules for your specific state and situation.

The real danger: not tracking deadlines at all

Most contractors who lose their lien rights don’t lose them because they filed incorrectly. They lose them because they didn’t track the deadlines in the first place. When you’re running multiple jobs across different phases, it’s easy for a deadline to slip by unnoticed.

That’s why having a system matters. Whether it’s a spreadsheet, a calendar, or project management software that tracks job timelines automatically, you need something that flags these dates before they pass. Your lien rights are too valuable to leave to memory alone.

Lien Waivers: When to Sign and When to Push Back

Lien waivers are the flip side of construction lien rights. While a lien protects your right to get paid, a lien waiver is a document where you voluntarily give up that right, usually in exchange for payment.

Lien waivers are a normal part of construction transactions. GCs and property owners use them to protect themselves from double payment claims. When they pay you, they want documentation that says you won’t file a lien for the amount they just paid. That’s reasonable.

The problem comes when contractors sign waivers at the wrong time or for the wrong amount.

Types of lien waivers

There are four standard types, and knowing the difference is critical:

1. Conditional waiver on progress payment. You waive your lien rights for a specific payment amount, but only on the condition that the check actually clears. This is the safest waiver to sign when receiving a progress payment. If the check bounces, the waiver is void.

2. Unconditional waiver on progress payment. You waive your lien rights for a specific amount, period. It doesn’t matter if the check bounces. Once you sign this, your rights for that amount are gone. Only sign this after the check has cleared your bank.

3. Conditional waiver on final payment. Same as the conditional progress waiver, but it covers the entire remaining balance and is tied to the final payment.

4. Unconditional waiver on final payment. The most dangerous one. This waives all your lien rights on the project, permanently. Only sign this when you have every dollar in your account and confirmed.

When to push back

You should push back on a lien waiver if:

• Someone asks you to sign an unconditional waiver before you’ve received or deposited the payment
• The waiver amount doesn’t match the payment amount
• The waiver covers work or materials beyond what you’ve been paid for
• You’re being asked to sign a final waiver when there are still outstanding change orders or disputed amounts
• The waiver form doesn’t match your state’s statutory form (some states, like California, have mandatory waiver forms and any deviation makes them unenforceable)

Never sign a lien waiver as a “good faith” gesture before payment arrives. That’s not good faith. That’s giving up your use. A conditional waiver protects both parties. If the other side insists on an unconditional waiver before payment, that’s a red flag.

Keep copies of everything

Every lien waiver you sign should be documented and stored with the project file. Track which payments each waiver covers and the dates. If a dispute arises months later, you’ll need this paper trail to prove what you waived and what you didn’t.

Tracking Lien Deadlines and Notices With Software

Managing construction lien rights manually is possible when you’re running one or two jobs. But once you’re juggling five, ten, or twenty active projects across different states and different stages, things slip through the cracks fast.

The contractors who protect their lien rights consistently are the ones who have systems in place. Here’s what that looks like in practice:

Centralize your project data

Every job should have a single source of truth that includes the project address, start date, contract amount, parties involved, and key dates. When this data lives in one place, calculating lien deadlines becomes straightforward instead of a scramble through email threads and filing cabinets.

Construction management software like Projul ties your project data together so you can see job status, costs, and timelines at a glance. When you know exactly when you first furnished labor on a project, you can calculate your preliminary notice and lien filing deadlines without guessing.

Track costs in real time

One of the biggest reasons contractors lose money on lien claims is poor documentation of what they’re actually owed. If you can’t prove the exact amount with detailed job costing records, your lien claim gets weaker.

Track every cost as it happens. Labor hours, material purchases, equipment rentals, change orders. When everything is logged in real time, you have a clear, defensible number to put on your lien claim if it ever comes to that.

Document everything with photos and records

Courts want evidence. Photos of completed work, signed delivery tickets, daily logs, and communication records all support your lien claim. If you’re using software that lets you capture photos and documents tied directly to each job, you’re building your case without extra effort.

Set up deadline alerts

The single most important thing you can do for your construction lien rights is make sure you never miss a deadline. Build alerts into whatever system you use. Preliminary notice due dates, lien filing deadlines, and enforcement deadlines should all trigger notifications well before they expire.

A good rule of thumb is to set alerts at 30 days, 14 days, and 7 days before any lien-related deadline. That gives you enough runway to act without rushing.

Invoice promptly and follow up

Lien rights are a last resort. The best way to get paid is to invoice quickly and follow up consistently. Most payment issues don’t turn into lien situations when you have a solid billing process. Send invoices the day the work is done (or on the scheduled billing date for progress billing). Follow up at 7 days, 14 days, and 30 days. If you’re still waiting after 30 days, it’s time to start thinking about your lien options.

The whole point of tracking lien deadlines is to make sure you never have to say “I wish I had filed that notice sooner.” Build the system, follow the system, and your lien rights will be there when you need them.

For a deeper dive into getting paid faster, check out our guide on construction payment terms.

Ready to stop guessing and start managing? Schedule a demo to see Projul in action.

Frequently Asked Questions

Can I file a mechanic’s lien on a public project?

No. Mechanic’s liens only apply to private property. On public projects (government buildings, roads, schools), you can’t place a lien on government-owned property. Instead, public projects are protected by payment bonds. If you’re not getting paid on a public job, you’d file a bond claim against the payment bond rather than a mechanic’s lien. The deadlines and process are different, so check your state’s bond claim requirements.

How much does it cost to file a mechanic’s lien?

The recording fee at the county recorder’s office is usually between $30 and $100, depending on the county. If you use a lien filing service, expect to pay $200 to $500 on top of that. Attorney fees for preparing and filing a lien typically range from $500 to $1,500. If you need to enforce the lien through a lawsuit, legal costs go up significantly. But compared to writing off a $20,000 or $50,000 unpaid invoice, the filing costs are a smart investment.

What happens to my lien if the property is sold?

A properly recorded mechanic’s lien stays with the property even if it’s sold. The new owner takes the property subject to your lien. In practice, most property sales involve a title search, and any existing liens must be resolved before closing. This is actually one of the reasons a mechanic’s lien is such effective take advantage of. It blocks the sale until the owner deals with your claim.

Can a property owner remove my lien without paying me?

A property owner can challenge your lien through several legal mechanisms. They can file a motion to release the lien if they believe it was filed improperly. Some states allow owners to post a bond (called a lien discharge bond) that substitutes for the property as security, effectively removing the lien from the title while your claim transfers to the bond. They can also wait for your enforcement deadline to pass, at which point the lien expires on its own. That’s why timely enforcement is so important.

Do I need a lawyer to file a mechanic’s lien?

You’re not legally required to hire a lawyer in most states, and many contractors successfully file liens themselves or through lien services. However, construction lien rights involve strict technical requirements, and a small error in the legal description, the amount claimed, or the service method can invalidate your lien. For larger amounts (over $10,000), hiring a construction attorney is worth the cost. They’ll make sure everything is done correctly and can handle enforcement if the property owner doesn’t respond. For smaller claims, a reputable lien filing service combined with your own research may be enough.

Getting paid shouldn’t be this hard. But in construction, it often is. Construction lien rights exist to level the playing field and make sure the people who build things have legal recourse when payment doesn’t come through.

The key is preparation. Send your preliminary notices on time. Track your deadlines. Document your work. Know when to sign a lien waiver and when to push back. And have a system in place so nothing falls through the cracks.

If you’re ready to get your project management, job costing, and invoicing organized so lien tracking becomes part of your workflow instead of an afterthought, check out Projul’s pricing plans and see how it fits your business.