Mechanic's Liens: A Contractor's Guide to Getting Paid (2026)

A mechanic's lien (also called a construction lien, materialman's lien, or contractor's lien) is a legal claim against a property when a contractor, subcontractor, or supplier hasn't been paid for work they performed.

Why it's powerful: A lien clouds the property title. The owner can't sell or refinance the property until the lien is resolved. This gives you enormous leverage to get paid without going to court.

Who can file: In most states, general contractors, subcontractors, sub-subcontractors, suppliers of materials, equipment lessors, and design professionals all have lien rights.

Key takeaway: Lien rights are one of the most powerful tools contractors have to ensure payment. Not using them is leaving money on the table.

In most states, you must send a preliminary notice (also called a pre-lien notice, Notice to Owner, or Notice of Right to Lien) within a short window BEFORE the lien deadline to preserve your lien rights.

Why preliminary notices matter:
- They preserve your lien rights (required in most states)
- They put the owner and GC on notice that you're on the project
- They're often required by sub-subcontractors and suppliers even if not required from GCs

Timing by state:
- California: 20 days from first furnishing labor or materials
- Florida: No later than 45 days from first work/delivery (Notice to Owner)
- Texas: Within deadlines based on whether you're a sub or supplier
- Most states: 20–30 days from first furnishing

Pro tip: Send the preliminary notice on every project, every time — even if you know the owner, even on small jobs. It costs almost nothing and protects everything.

Critical warning: Lien deadlines vary by state, by party (GC vs sub vs supplier), and sometimes by project type (residential vs commercial). Miss the deadline = lose your lien rights.

Common lien deadline windows:
- California: 90 days from project completion (GC); 90 days after last work/delivery (subs/suppliers)
- Florida: 90 days from last furnishing (all claimants)
- Texas: 15th day of 3rd month after each unpaid monthly invoice (subs/suppliers)
- New York: 4 months from last work (GC/prime); 1 year (owner-occupied single-family)
- North Carolina: 120 days from last furnishing

ALWAYS verify your state's specific deadlines — this is an area where a $500 consultation with a construction attorney pays for itself repeatedly.

Step 1: Verify you've met preliminary notice requirements — If you forgot to send the preliminary notice and you're past the window, contact a construction attorney immediately to assess your options.

Step 2: Prepare the lien document — Must include:
- Property owner's name and address
- Claimant's (your) name and address
- Description of the property (legal description or common address)
- Amount owed
- Type of work performed / materials furnished
- Date of last furnishing

Step 3: File with the correct county — Mechanic's liens are filed with the county recorder/clerk where the property is located. Filing fees: $10–$100.

Step 4: Serve the owner — Most states require you to serve a copy of the filed lien on the property owner within a short window (often 5–15 days).

Step 5: Enforce or release — After filing, you typically have 90 days to 2 years to file a lawsuit to enforce the lien, depending on state. If you get paid, file a release of lien immediately.

The phone call strategy: Once you've filed a lien, call the property owner (not the GC). Explain that a lien has been filed, it clouds their title, and you want to resolve it quickly. Owners are motivated to clear liens — they can't sell or refinance.

The negotiation lever: A filed lien is not a demand for full payment. It opens a negotiation. Accept a payment plan in some cases; full payment in others. Get any agreement in writing before releasing the lien.

Bond claims: On bonded projects (public work, some commercial), you file a bond claim instead of a property lien. Same concept — different procedure.

Joint checks: GCs can offer to pay you and your sub with a joint check (payable to both), ensuring your payment reaches you. Request this when you have payment concerns.

When to hire an attorney: If you're owed over $25,000 and the lien negotiation isn't working, hire a construction attorney. A good one earns their fee many times over on large contested liens.