Mechanics Liens in California: How Homeowners Avoid Paying Twice for a Remodel

Short answer: in California, subcontractors, suppliers and laborers who were not paid can record a mechanics lien against your property, even if you paid your contractor in full. CSLB's consumer guide Terms of Agreement warns that an owner could be forced to pay twice. CSLB's page on preventing a mechanics lien describes the main protections: keep every preliminary notice you receive; get a signed conditional release from potential claimants before you pay; get unconditional releases once their payment has been made; and consider joint checks. Lien rights also run on strict deadlines. Recording a lien and foreclosing on it are separate steps with separate clocks.

This is general information current to 3 October 2026, not legal advice. If a lien has already been recorded against your home, talk to a California attorney promptly.

How homeowners end up facing liens

The California homeowner discussions we reviewed show several distinct patterns. These are anecdotal accounts, not verified facts:

• The contractor was paid but went under. A homeowner reported paying a solar company in full. After the company went bankrupt, the equipment supplier recorded a lien on the house.
• Laborers hired by a subcontractor. An owner received liens from two stucco laborers over money withheld for unfinished, defective work.
• Disputed final invoice. An owner who was also an architect described a contractor recording a lien during a disagreement over the closeout amount.
• A threat used as leverage. One homeowner posted a demand letter threatening a lien over a disputed balance on extra work agreed by handshake, with no invoices provided.
• A lien after firing the contractor. An owner in Los Angeles who fired their GC mid-project reported a lien recorded the next day for the rest of the contract amount.

Contractors post the other side. One California contractor asked what happens after recording a lien when an owner had paid with a bad check. Liens are a legitimate tool for unpaid work and a source of pressure in disputes. Both sides benefit from understanding the rules.

The building blocks of California lien law

Preliminary notice, including late notices

Under Civil Code § 8200, most claimants must give a preliminary notice to the owner, the direct contractor and any construction lender before they can record a valid lien. Laborers do not need to give one. A claimant who contracted directly with the owner, such as your general contractor, needs to notify only the construction lender, if there is one. CSLB explains that the notice is due before work begins or supplies are delivered, or within 20 days after.

A late notice does not automatically wipe out the claim. According to CSLB, if the notice arrives after that window, the claimant's lien rights cover work or materials provided within the 20 days before the notice was delivered and anytime after it. They lose rights only for the earlier portion. So do not assume a late notice means a later lien is invalid.

A preliminary notice is not a lien and not a sign of trouble. It is a list of who has lien rights on your job. Keep every one you receive.

Recording deadlines (step one)

CSLB's page on what to do if a lien is filed against you summarizes 'completion' to include the owner beginning to use or accepting the improvement. Whether and when a project was complete can itself be disputed.

Service of the lien

CSLB notes that a lien claimant must serve the owner. The recorded lien should identify the amount claimed, the work or materials provided, who employed the claimant and the owner, and it should be accompanied by a signed proof of service affidavit. If you learn of a lien you were never served with, raise it with an attorney.

Foreclosure deadline (step two)

Recording a lien does not end the process. Under Civil Code § 8460, the claimant must start a lawsuit to enforce the lien within 90 days after recording it. If they do not, the claim of lien expires and is unenforceable. There is a narrow exception for recorded credit extensions. CSLB explains that if a claimant does not release an expired or invalid lien after a written request, the owner may petition the court for a decree releasing the property, and the court may award reasonable attorney fees. Separately, BPC § 7031 restricts unlicensed persons from suing to collect compensation for work that requires a license, which affects their ability to enforce a lien for such work. Expiry of the lien does not necessarily cancel the underlying payment claim, which may be pursued in other ways.

Lien releases: read the actual form

California uses statutory forms for waivers and releases of lien rights. Each form has fields that decide what is actually released, so read every one you receive rather than treating it as a receipt for 'that payment'.

A release can be valid and still leave rights open for amounts the claimant has excluded or for work after the through date. If an item on the form is unclear, ask before you pay.

How releases and payments fit together

Two California provisions work together. BPC § 7159(c)(7)(A) requires the contract to state that, once satisfactory payment has been made for a portion of the work, the contractor will provide a full and unconditional release for that portion before any further payment. BPC § 7159.5 and CSLB's guidance allow you to withhold the next payment until you receive the unconditional releases for the previous payment. This is a right to receive releases for amounts already paid. It is not a general right to hold back any payment until every release you would like has arrived. If you want releases from subcontractors you have not paid through the contractor, or joint checks, agree that in the contract.

A practical lien-protection routine

1. Before work starts: make sure the contract includes the statutory mechanics lien warning and release statement required by § 7159. Ask for the list of subcontractors and suppliers. Under § 7159(c)(7)(B), where the contract indicates subcontractors will be used, the list must be provided on request.
2. Keep a notice log: record each preliminary notice with sender, date and the work or materials described.
3. Before each payment: pay against an itemized invoice, and collect conditional releases from the contractor and, where agreed, from noticed subs and suppliers covered by the payment.
4. After each payment: collect unconditional releases for the amount actually paid, and check the through dates.
5. For large sub or supplier amounts: CSLB describes joint checks, payable to both the contractor and the subcontractor or supplier, as the simplest way to prevent liens.
6. At completion: collect conditional final releases with the final payment and unconditional final releases afterwards. CSLB explains that recording a notice of completion shortens claimants' recording windows. The county recorder can explain how to record one; an attorney can explain the legal effect for your project.

If a lien is recorded against your home

• Check validity and dates. Was a preliminary notice required and given, and does a late notice limit the claim? Was the lien recorded within the § 8412 or § 8414 window? Were you served? Has an enforcement suit been filed within 90 days of recording?
• Gather records: the contract, change orders, invoices, payment proofs, releases and preliminary notices.
• Respond in writing. CSLB suggests a certified-mail request identifying timeline problems if you believe a lien is invalid or expired.
• Get legal advice early. Court petitions and release bonds have their own procedures, and a disputed lien can block a sale or refinance.
• Look at the contractor's license record. The CSLB lookup shows license status and bond history, which can matter for a bond claim. See CSLB complaints and bond claims.

Common misunderstandings

• 'I paid the contractor, so I'm protected.' Not necessarily. Unpaid subs and suppliers may still have lien rights.
• 'A preliminary notice means my contractor isn't paying people.' No. It is routine and preserves rights.
• 'A late preliminary notice voids the lien.' Not entirely. Rights may survive for work within 20 days before the notice and after it.
• 'Signing an unconditional release is harmless if a check is coming.' The statutory form warns otherwise.
• 'A release covers everything up to today.' It covers what the form states, up to its through date and minus listed exceptions.

Bay Area applicability

Lien law is statewide. Liens and notices of completion are recorded with the recorder of the county where the property sits, for example San Mateo, Santa Clara, Alameda or San Francisco. The recorder's office handles recording procedure and fees, not the legal effect of a document. Bay Area remodels often bring in several specialty subcontractors and separately purchased items such as cabinets, stone and windows, so the number of parties who may send preliminary notices can be larger than owners expect. That makes a notice log especially useful.

Current to 3 October 2026.