Key Takeaways

• A mechanic’s lien is a legal claim recorded against your property by someone who provided labor or materials and says they were not paid. It can cloud your title and make it hard to sell or refinance until it is resolved.
• California’s lien rules run on a strict clock. A contractor generally has to record the lien within 90 days of completing the work, and that window can shrink if you recorded a Notice of Completion.
• A lien is not the same thing as a valid debt. Liens get recorded all the time with missed deadlines, missing preliminary notices, or amounts that include work that was never finished.
• You have real tools to push back: ask for proof, demand the contractor file suit, negotiate a release, or petition the court to remove an expired lien.
• Acting quickly matters, because some of your best defenses depend on deadlines the contractor has to meet after recording.

Contractor Filed a Mechanic’s Lien on My Home in California: What Do I Do Now?

You open the mail, or you hear from your title company, and there it is: a contractor recorded a mechanic’s lien against your home. It feels heavy, and it is meant to. A lien is a public claim that says someone who worked on your property believes they were not fully paid. But a recorded lien is a starting point in a process, not a final judgment that you owe the money. Understanding how the process works in California puts you back in a position to respond instead of react.

What a mechanic’s lien actually is

A mechanic’s lien is a security interest in your real property. California’s mechanic’s lien law, found at Civil Code section 8400 and the sections that follow, gives people who contribute to a “work of improvement” the right to record a claim if they are not paid. That includes the direct contractor you hired, but it also reaches subcontractors, material suppliers, equipment lessors, laborers, and design professionals who worked on the project, even ones you never met or paid directly.

The practical effect is on your title. While the lien sits on record, it typically clouds your ability to sell or refinance, because a buyer or lender usually wants clear title. That leverage is the entire point of the lien: it pressures payment by attaching to the most valuable thing involved, your home.

What a lien is not, though, is automatic proof of a valid debt. Recording a lien is a paperwork step. Whether the lien is enforceable depends on whether the claimant followed the rules and met the deadlines, and whether the underlying amount is actually owed. Those are separate questions, and they are where your defenses live.

The deadlines that decide whether a lien survives

California lien deadlines are unforgiving, and that cuts both ways. The same strict timing that makes liens powerful for contractors also gives homeowners clean defenses when a step is missed.

A few of the key dates under the lien law: many claimants must serve a preliminary notice within 20 days of first providing labor or materials (we cover that in depth in a companion article). A direct contractor generally must record the lien within 90 days after the work of improvement is completed. If you, as the owner, record a Notice of Completion or Notice of Cessation, that window shortens, typically to 60 days for a direct contractor and 30 days for others. And once a lien is recorded, the claimant generally has only 90 days to file a lawsuit to foreclose on it. If they do not file in time, the lien expires.

These are often described as deadlines that cannot be extended by ordinary negotiation. Promises to pay, partial payments, or ongoing settlement talks generally do not stop the clock. That detail is easy to miss and important: a contractor who keeps “working things out” with you while the foreclosure deadline passes may lose the lien by operation of law. Because the precise dates and how they are calculated can turn on facts specific to your project, this is a common area where a quick professional review pays off.

Can a contractor lien for work that was not finished?

This question comes up constantly, and the short answer is that a lien is supposed to reflect the value of work actually provided to your property, not work that was promised and never performed. A claimant generally cannot inflate a lien with charges for work they never did. A lien recorded while the claimant is still in the middle of performing can also be premature.

That does not mean every disputed dollar makes a lien invalid. A contractor who did part of the job may still have a lien for the reasonable value of what they actually contributed, even in the middle of a disagreement about quality or completion. The useful move is to separate two things in your own mind: how much work was genuinely provided, and how much the lien claims. A gap between those two numbers is something you can challenge.

How to tell whether the lien against your home is valid

Start by reading the lien itself and gathering your own records. A few questions to work through:

• Did the claimant meet the deadlines? Look at when the work was completed and when the lien was recorded. If you recorded a Notice of Completion, check the shortened window.
• Was a preliminary notice required, and was it sent? Many claimants, especially subcontractors and suppliers, have to serve a preliminary notice to preserve lien rights. A missing or defective notice is one of the most common grounds to challenge a lien.
• Does the amount match the work? Compare the lien amount to what was actually performed and what you already paid.
• Was the claimant licensed? A contractor who needed a license but did not have one generally cannot enforce a lien. If licensing is in question, that is a significant issue worth exploring with counsel.
• Are the formal contents and service correct? California specifies what a lien must contain and how it must be served. Defects here can matter.

You do not have to resolve all of this alone. But walking in with organized answers to these questions makes any conversation, with the contractor or with an attorney, far more productive.

Your options to fight or remove a lien

Once you have a sense of where the lien stands, several paths open up.

Ask for documentation and try to resolve it. Sometimes the fastest route is requesting an itemized accounting and addressing a genuine, smaller balance. If part of the claim is legitimate, resolving that part may clear the lien.

Negotiate a release. Contractors can sign a release of the lien, often in exchange for payment of an agreed amount. Getting any such agreement in writing, with a recorded release, is what actually clears your title.

Demand that the claimant start their lawsuit. California lets a property owner serve a demand that the lien claimant begin the foreclosure action. This can force the issue: the claimant either files suit on a shortened timeline or risks losing the lien.

Petition the court to remove an expired or invalid lien. If the claimant blew the foreclosure deadline, or the lien is otherwise unenforceable, California provides a petition process to obtain a court order releasing the lien, sometimes with recovery of your costs and fees. There is also a bond mechanism that can be used to substitute a surety bond for the lien so a sale or refinance can proceed.

Defend the foreclosure suit. If the claimant does sue, that lawsuit is your opportunity to raise every defense, from missed deadlines to inflated amounts to defective work.

Which path fits depends on the facts, the dollar amount, and your timeline, especially if you are trying to close a sale or refinance. Because a lien touches your title and runs on deadlines, many homeowners find it worth getting an early read from a construction attorney rather than waiting to see what the contractor does. If you would like that read, Bay Legal’s construction team can help you evaluate the lien and your options. For guidance on your specific situation, call (650) 668-8000 or schedule a consultation at baylegal.com/contact.

Don’t ignore it, and don’t panic

The worst response to a lien is to do nothing, because some of your strongest defenses depend on deadlines that are running right now. The second worst is to assume the lien proves you owe every dollar it claims. The right response sits in between: figure out whether the lien is valid, separate the real balance from the disputed part, and choose a path to resolve or remove it. A lien is leverage, and once you understand the process, you have leverage of your own.

If a lien is sitting on your home and you are not sure where to start, a short conversation with a construction attorney can map out your options before a deadline forces your hand. Bay Legal, PC works with California homeowners on exactly these disputes. For guidance on your specific situation, call (650) 668-8000 or schedule a consultation at baylegal.com/contact.

Frequently Asked Questions

What is a mechanic’s lien and how does it affect my California property?

A mechanic’s lien is a legal claim recorded against your property by someone who provided labor or materials for a project and says they were not paid. While it is on record, it typically clouds your title, which can make it difficult to sell or refinance until the lien is resolved or removed.

How long does a contractor have to file a mechanic’s lien in California?

A direct contractor generally must record a lien within 90 days after the work of improvement is completed. If the owner records a Notice of Completion or Notice of Cessation, that window typically shortens to 60 days for a direct contractor and 30 days for others. These deadlines are strict, so the exact dates matter.

Can a contractor file a lien for work that was never completed in California?

A lien is meant to reflect the value of work actually provided, not work that was promised but never performed. A claimant generally cannot inflate a lien with charges for work they did not do, and a lien recorded while work is still ongoing may be premature. A gap between the lien amount and the work actually performed is something you can challenge.

What are my options to fight or remove a mechanic’s lien in California?

Options include requesting an itemized accounting and resolving any legitimate balance, negotiating a recorded release, serving a demand that forces the claimant to file their foreclosure lawsuit on a shortened timeline, petitioning the court to remove an expired or invalid lien, and defending any foreclosure suit. A bond can also be substituted for the lien so a sale or refinance can proceed.

How do I know if a mechanic’s lien filed against my home is valid in California?

Check whether the claimant met the recording and notice deadlines, whether a required preliminary notice was sent, whether the lien amount matches the work actually performed, whether the claimant was properly licensed, and whether the lien’s contents and service met the statutory requirements. A defect in any of these areas may be grounds to challenge the lien.