# What Is a Mechanic's Lien?

A mechanic's lien is a legal claim against a property, filed by a contractor, subcontractor or supplier who improved it and wasn't paid. It clouds the title until the debt is paid or the lien is released, and it can be foreclosed. Every state sets strict notice, filing and lawsuit deadlines; miss one and the lien is lost.

## Key takeaways

- A lien attaches to the property, not just the person who owes you, which is why owners and lenders take it seriously.
- Most states require some combination of a preliminary notice, a recorded lien claim, and a lawsuit to enforce it, each with its own deadline.
- Deadlines differ a lot: 90 days to record in California and Florida, up to eight months in New York, and month-based deadlines in Texas.
- Subcontractors and suppliers usually have to send notices that a general contractor working directly for the owner does not.
- Lien rights are traded for payment through lien waivers, so track every waiver you sign against money actually received.

> **General information, not legal advice**
>
> This page explains how mechanic's liens generally work and quotes several state statutes as of October 2026. Deadlines are strict and the details change. Check your state statute or talk to a construction attorney before you send a notice or record a lien.

## How does a mechanic's lien work?

A mechanic's lien works by turning an unpaid construction bill into a claim on the property itself. If you add value to real estate (framing, wiring, a new roof, a furnace install) and don't get paid, state law lets you record a lien in the county records. The owner can't sell or refinance cleanly until it's resolved, and if nobody pays, you can sue to force a sale.

The right exists because of the work, not because of a contract clause. That's also why it's fragile: the lien is a statutory remedy, and courts read the statute strictly. A lien recorded a day late, sent to the wrong party, or missing a required notice is usually unenforceable.

### The three deadlines that matter

1. **Preliminary notice (sometimes called notice to owner).** Many states require subcontractors and suppliers to warn the owner early that they're on the job. In California it's due within 20 days of starting work; in Florida within 45 days.
2. **Recording the lien.** The lien claim (also called a claim of lien or lien affidavit) must be recorded with the county within a set period after you finish or stop work. Ninety days is common, but it ranges from month-based deadlines in Texas to eight months in New York.
3. **Enforcing the lien.** A recorded lien expires unless you file a lawsuit to foreclose it in time: 90 days after recording in California, six months in Arizona, one year in Florida and New York.

## Mechanic's lien deadlines by state

Deadlines vary more than most owners expect. The table below quotes six state statutes or state agency guides, checked on October 12, 2026. It covers private residential and commercial work; public projects usually use payment bonds instead of liens.

**Mechanic's lien deadlines in six states (private projects)**

| State | Notice required before the lien | Deadline to record the lien | Deadline to sue to enforce |
| --- | --- | --- | --- |
| California (Civil Code §§ 8200–8494) | Subs and suppliers: within 20 days of starting work or delivering materials. Not required from the direct contractor or laborers. | 90 days after completion. If the owner records a notice of completion: 60 days for the direct contractor, 30 days for subs and suppliers. | 90 days after recording the lien. |
| Texas (Property Code ch. 53) | Subs and suppliers send a notice of claim by the 15th day of the 2nd month (residential) or 3rd month (other projects) after the month work was provided. | Original contractor: 15th day of the 3rd month (residential) or 4th month (other) after the month work was completed, terminated or abandoned. | One year after the last day the lien affidavit could have been filed (can be extended by written agreement). |
| Florida (ch. 713) | Parties not in privity with the owner serve a notice to owner within 45 days of starting to furnish labor or materials. | 90 days after final furnishing of labor, services or materials. | One year after recording the claim of lien. |
| New York (Lien Law §§ 10, 17) | No general preliminary notice requirement for private work. | 8 months after completion; 4 months for a single-family dwelling. | One year after filing, unless a foreclosure action is started or (except single-family) an extension is filed. |
| Arizona (A.R.S. §§ 33-992.01, 33-993, 33-998) | Preliminary 20-day notice from most claimants (laborers for wages are excepted). | 120 days after completion, or 60 days after a notice of completion is recorded. | Six months after recording. |
| Washington (RCW 60.04.091, 60.04.141) | Notice requirements depend on the claimant and project type; check chapter 60.04. | 90 days after you stop furnishing labor, services, materials or equipment. | Eight calendar months after recording, plus service on the owner within 90 days of filing suit. |

_Sources: CSLB Homeowner's Guide to Preventing Mechanics Liens; Texas Property Code §§ 53.052, 53.056, 53.158; Florida Statutes §§ 713.06, 713.08, 713.22; NY Lien Law §§ 10, 17; A.R.S. §§ 33-993, 33-998; RCW 60.04.091, 60.04.141. Checked 2026-10-12. Special rules apply to retainage, homesteads, owner-occupied homes and public work._

> **Florida: residential contracts need a lien-law notice**
>
> Florida requires any direct contract over $2,500 for a home of up to four units to include a specific construction-lien notice, in at least 12-point capitalized bold type, signed and dated by the owner (Fla. Stat. § 713.015). If you work in Florida, make sure your contract template has it.

## A worked example: a roofing sub who didn't get paid

> **Example (illustrative numbers): California re-roof**
>
> A roofing subcontractor signs on to a $38,000 remodel under a general contractor. The sub starts tear-off on March 3 and serves a preliminary notice on the owner, the GC and the lender on March 10, inside the 20-day window.
>
> The roof is done on April 18. The GC pays $14,000 and then stops answering. $24,000 is outstanding.
>
> No notice of completion is recorded, so the sub has 90 days from completion, until about July 17, to record a lien for $24,000. If the owner had recorded a notice of completion, the sub's window would shrink to 30 days.
>
> The sub records on June 2. Now the clock restarts: a lawsuit to foreclose must be filed within 90 days of recording, by about August 31, or the lien expires.
>
> Had the sub served the preliminary notice late, say on April 1, it could only lien for work done from 20 days before the notice was delivered.

Notice what made this lien work: an early notice, a calendar entry for every deadline, and an amount backed by invoices. That paper trail is the same one you need to [collect unpaid invoices](https://www.brix.so/learn/how-to-collect-unpaid-invoices) before a lien is even on the table.

## Who can file a mechanic's lien?

Generally, anyone who supplies labor, materials or certain professional services to improve private property can claim a lien: general contractors, subcontractors, sub-subs, material suppliers, equipment renters and, in many states, laborers. Some states also cover architects, engineers and surveyors.

- **Direct (original) contractors** usually don't need a preliminary notice, but must still record and enforce on time.
- **Subcontractors and suppliers** typically must send preliminary notices to keep their rights. In Florida, failing to serve the notice to owner is a complete defense to the lien.
- **Unlicensed contractors** often can't lien at all. Florida makes contracts by unlicensed contractors unenforceable by the contractor (Fla. Stat. § 489.128). See [contractor license](https://www.brix.so/learn/contractor-license).
- **Public projects** usually can't be liened. Claimants look to the contractor's payment bond instead. See [surety bond](https://www.brix.so/learn/surety-bond).

## Mechanic's liens by trade

**Where lien rights come up most**

| Trade | Typical lien situation | What to watch |
| --- | --- | --- |
| Roofing | Sub to a GC or storm-restoration company that collected the insurance check | Serve notices early; insurance jobs often have multiple payees |
| HVAC | New construction or change-out under a builder | Equipment is often a big share of the bill, so supplier notices matter |
| Electrical | Sub on remodels and tenant build-outs | Commercial tenant work may lien the tenant's interest, not the building |
| Plumbing | Rough-in and finish phases on new homes | Two phases can mean two invoices; track the last day you furnished work |
| Landscaping and hardscaping | Large installs, retaining walls, irrigation | Many states treat landscaping as an improvement, but check the statute's definition |
| Supply houses | Materials sold on account to a contractor | Suppliers often must notify the owner within weeks of the first delivery |

_General patterns, not legal rules. Whether a given trade or task is lienable depends on the state's definition of an improvement._

## Mechanic's lien vs. lien waiver vs. payment bond

A mechanic's lien is the claim; a [lien waiver](https://www.brix.so/learn/lien-waiver) is the document where you give up that claim, usually in exchange for a payment. On public jobs, and on some private ones, a payment bond replaces lien rights: instead of liening the property, you claim against the surety that issued the bond. The deadlines for bond claims are different again, so check them separately.

Liens also interact with [retainage](https://www.brix.so/learn/retainage). Texas, for example, sets a separate deadline for subcontractors claiming a lien for retainage: the 15th day of the 3rd month after the original contract is completed, terminated or abandoned (Tex. Prop. Code § 53.052(d)).

## Common mistakes that kill lien rights

1. **Counting from the wrong date.** "Completion" means different things in different statutes. Small punch-list or warranty work often doesn't extend the deadline.
2. **Skipping the preliminary notice.** Subs who wait until they're unpaid to think about liens have often already lost them.
3. **Overstating the amount.** Some states penalize willfully exaggerated liens. Lien only for work performed, not lost profit on the rest of the job.
4. **Signing an unconditional waiver before the check clears.** That can give up the lien for money you never received.
5. **Recording but never suing.** A recorded lien expires on its own if you don't enforce it in time.
6. **Wrong county or wrong legal description.** Record where the property sits, with the description from the deed.

## How to protect your lien rights on every job

- Collect the owner's name, the property's legal description and any lender at the start of every job.
- Send preliminary notices as standard practice, not as a threat. Owners and GCs on well-run jobs expect them.
- Bill in documented stages with [progress billing](https://www.brix.so/learn/progress-billing), so each invoice shows the work and dates it covers.
- Log the last day you furnished labor or materials. That date drives most deadlines.
- Put every notice, recording and lawsuit deadline on a calendar the day the job starts.
- Check your state's rules in our [state tax and licensing guides](https://www.brix.so/taxes) and with an attorney before recording.

BRIX turns finished work into invoices and politely chases unpaid ones, so fewer jobs ever reach lien territory. It also keeps one record per job with every quote, invoice and payment, and custom AI automations can track the dates that matter, like notice and renewal deadlines, and flag them before they pass.

- [Invoicing and payments](https://www.brix.so/features/invoicing-payments): Turns finished jobs into invoices and politely chases unpaid ones until the money is in your account.
- [CRM](https://www.brix.so/features/crm): One record for every customer, lead, call, job, quote and invoice.
- [Compliance and permit tracking](https://www.brix.so/#use-cases): Tracks licenses, safety documents and permits and flags renewals before they lapse.
- [Custom AI automations](https://www.brix.so/features/ai-automations): Custom AI workflows built and set up for each customer's business.

## Frequently asked questions

### How long do I have to file a mechanic's lien?

It depends on the state and your role. California and Florida generally allow 90 days after completion or final furnishing, Arizona 120 days, and New York up to eight months (four for a single-family home). Texas uses month-based deadlines. Check your state's statute for the exact rule.

### Can a contractor put a lien on a house without a contract?

In many states, subcontractors and suppliers who never contracted with the owner can still lien the property if they send the required preliminary notices. Direct contractors generally need an agreement, written or oral, with the owner. Unlicensed contractors often can't lien at all.

### What happens if a mechanic's lien isn't paid?

The claimant can file a lawsuit to foreclose the lien, which can lead to a court-ordered sale of the property to pay the debt. The lawsuit must be filed within the state's deadline, such as 90 days after recording in California or one year in Florida. If it isn't, the lien expires.

### Does a mechanic's lien affect the homeowner's credit?

A mechanic's lien is recorded against the property, not reported as a credit account, but it shows up in title searches. That blocks a clean sale or refinance until it's released, which is why many owners pay or bond around a lien quickly.

### Can a homeowner have to pay twice because of a lien?

Yes. If the owner pays the general contractor and the GC doesn't pay a sub or supplier who preserved lien rights, the sub can lien the property. That's why owners ask for conditional and unconditional lien waivers with each payment.

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

County recording fees are usually modest, but they vary by county and page count. The bigger costs are preparing the documents correctly and, if needed, the foreclosure lawsuit. Many contractors use an attorney or a lien service for anything over a few thousand dollars.

### Can I file a lien on a public project?

Usually not. Public property generally can't be liened, so federal and state public projects require the prime contractor to post a payment bond. Unpaid subs and suppliers make a claim against that bond instead, under separate notice and lawsuit deadlines.

## Related

- [What Is a Lien Waiver?](https://www.brix.so/learn/lien-waiver)
- [What Is Retainage in Construction?](https://www.brix.so/learn/retainage)
- [What Is Progress Billing?](https://www.brix.so/learn/progress-billing)
- [What Is a Surety Bond?](https://www.brix.so/learn/surety-bond)
- [What Is a Contractor License?](https://www.brix.so/learn/contractor-license)
- [How to Collect Unpaid Invoices (A Contractor's Escalation Plan)](https://www.brix.so/learn/how-to-collect-unpaid-invoices)
- [Contractor Deposit Laws: How Much Can You Collect Up Front?](https://www.brix.so/learn/contractor-deposit-laws)
- [Contractor invoicing software that sends the invoice and chases the money](https://www.brix.so/features/invoicing-payments)
- [What Is Workers' Compensation Insurance?](https://www.brix.so/learn/workers-compensation)
- [What Is General Liability Insurance for Contractors?](https://www.brix.so/learn/general-liability-insurance)

## Sources

- [CSLB, A Homeowner's Guide to Preventing Mechanics Liens (California)](https://cslb.ca.gov/Resources/GuidesAndPublications/HomeownersGuideToPreventingMechanicsLiens.pdf) (checked 2026-10-12)
- [CSLB, How to Prevent a Mechanics Lien (notice of completion deadlines)](https://www.cslb.ca.gov/Consumers/Legal_Issues_For_Consumers/Mechanics_Lien/How_To_Prevent_A_Mechanics_Lien.aspx) (checked 2026-10-12)
- [Texas Property Code ch. 53, Mechanic's, Contractor's, or Materialman's Liens (§§ 53.052, 53.056, 53.158)](https://statutes.capitol.texas.gov/Docs/PR/htm/PR.53.htm) (checked 2026-10-12)
- [Florida Statutes ch. 713, Liens (§§ 713.015, 713.06, 713.08, 713.22)](https://www.leg.state.fl.us/statutes/index.cfm?App_mode=Display_Statute&URL=0700-0799/0713/0713.html) (checked 2026-10-12)
- [New York Lien Law § 10, Filing of liens](https://www.nysenate.gov/legislation/laws/LIE/10) (checked 2026-10-12)
- [New York Lien Law § 17, Duration of lien](https://www.nysenate.gov/legislation/laws/LIE/17) (checked 2026-10-12)
- [Arizona Revised Statutes § 33-993, Procedure to perfect lien](https://www.azleg.gov/ars/33/00993.htm) (checked 2026-10-12)
- [Arizona Revised Statutes § 33-998, Limitation of action to foreclose lien](https://www.azleg.gov/ars/33/00998.htm) (checked 2026-10-12)
- [RCW 60.04.091, Recording of lien (Washington)](https://app.leg.wa.gov/RCW/default.aspx?cite=60.04.091) (checked 2026-10-12)
- [RCW 60.04.141, Lien, duration (Washington)](https://app.leg.wa.gov/RCW/default.aspx?cite=60.04.141) (checked 2026-10-12)
- [Florida Statutes § 489.128, Contracts entered into by unlicensed contractors unenforceable](https://www.leg.state.fl.us/statutes/index.cfm?App_mode=Display_Statute&URL=0400-0499/0489/0489.html) (checked 2026-10-12)

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Written by BRIX Editorial Team. Last updated 2026-10-12. General information, not tax, legal or financial advice.
Canonical: https://www.brix.so/learn/mechanics-lien