Can I file a mechanic's lien if the owner already paid the general contractor in full?

Yes, but your lien amount may be limited. Under California Civil Code §8422, if the property owner paid the general contractor in full before you recorded your lien, your lien is limited to the lesser of the amount the owner still owes or the amount you're owed. This is why serving preliminary notice is critical — it puts the owner on notice that you're owed money.

How long do I have to record a mechanic's lien in California?

You have 90 days from the date of completion of the work of improvement (Civil Code §8412). If the owner records a notice of completion, you have only 30 days from that recordation if you're a direct contractor, or 90 days if you're a subcontractor. This is an absolute deadline — miss it and your lien rights are gone forever.

Demand Letters for Contractors & Construction Companies

Q: What if I forgot to serve preliminary notice?

This is the most common mistake contractors make. If you're a subcontractor, supplier, or laborer, you must serve preliminary notice within 20 days of first furnishing labor or materials. If you miss this deadline, you lose your mechanic's lien rights entirely (Cal. Civ. Code §8204). You can still sue for breach of contract, but you can't lien the property — which eliminates your most powerful leverage.

Q: What happens after I record a mechanic's lien?

Recording the lien clouds title and creates pressure for payment, but it doesn't actually collect money. Within 90 days of recording the lien, you must file a lawsuit to foreclose on the lien (Civil Code §8460). If you don't file suit within 90 days, your lien expires and becomes unenforceable.

Construction Payment Disputes: Unique Legal Landscape

Construction is the only industry where you can file a lien against someone's property for non-payment. This makes construction demand letters fundamentally different from other B2B collection efforts. California's mechanic's lien law (Civil Code §8000-8850) gives contractors, subcontractors, suppliers, and laborers extraordinary leverage — but only if you follow strict procedural deadlines.

I've represented general contractors, subcontractors, and suppliers in California construction disputes for over 15 years. Here's what you need to know:

Time-sensitive deadlines: Preliminary notice must be served within 20 days of first furnishing labor/materials (Civil Code §8204). Miss this deadline and you lose lien rights.
Strict compliance required: Mechanic's lien law is "strictly construed." A procedural error can invalidate your entire lien.
Multiple parties involved: Property owner, general contractor, subcontractors, suppliers, construction lender — disputes involve complex payment chains.
High success rate: Well-drafted construction demand letters citing mechanic's lien rights succeed 75-80% of the time because property owners fear losing their property.

Common Construction Payment Scenarios

1. Homeowner Won't Pay for Completed Work

This is the most common scenario I see. You're a general contractor or specialty subcontractor (roofer, electrician, plumber, framer) who completed work on a residential property. The homeowner is refusing final payment, claiming defects or dissatisfaction.

Legal theories:

Breach of contract: If you have a written contract specifying scope, price, and payment terms
Quantum meruit: If there's no written contract but you performed work at the owner's request (common for change orders)
Mechanic's lien: Statutory right to record a lien against the property (Civil Code §8400-8494)

California Civil Code §8400: A person that provides labor, service, equipment, or material for a work of improvement has a mechanic's lien on the property for the value of the labor, service, equipment, or material provided.

Critical deadline: You must serve a preliminary notice within 20 days of first furnishing labor or materials (Civil Code §8204). If you're a direct contractor (contracted directly with the owner), you don't need to serve preliminary notice — but you should anyway as best practice.

What to include in your demand letter:

Reference to your preliminary notice (attach copy if you served one)
Statement that you have the right to record a mechanic's lien under Civil Code §8400
Warning that the lien will cloud title and prevent sale or refinancing
Specific deadline (typically 10 days) before you record the lien
Itemized statement of work performed and amounts owed

                Pro tip: Homeowners almost always pay when faced with a mechanic's lien threat if you served proper preliminary notice. The lien prevents them from selling or refinancing until it's released, which is catastrophic leverage.
            

2. Subcontractor Non-Payment

You're a subcontractor who worked through a general contractor. The GC got paid by the property owner but didn't pay you. Or the GC went out of business. Or the GC claims your work was defective.

This scenario is more complex because you have potential claims against multiple parties:

Direct breach of contract claim against the GC (assuming you contracted with the GC, not the owner)
Mechanic's lien against the property owner (even though you never contracted with them directly)
Stop payment notice if the project involves a construction lender or public funds (Civil Code §8500-8554)
License bond claim if the GC is licensed and bonded (Business & Professions Code §7071.5)

California Civil Code §8204(a): A subcontractor must give preliminary notice to the owner, general contractor, and construction lender within 20 days after first furnishing labor or materials. Failure to give preliminary notice waives your mechanic's lien rights.

Strategic decision: Should you pursue the GC, the property owner via mechanic's lien, or both? This depends on:

Whether you served timely preliminary notice (if not, you can't lien the property)
Whether the GC is solvent (no point suing a defunct corporation)
Whether the owner already paid the GC in full (if so, your lien may be limited)
Your relationship with the GC (do you want to preserve it for future work?)

I generally send simultaneous demand letters to both the GC (for breach of contract) and the property owner (pre-lien notice) to maximize pressure.

3. Change Order Disputes

The project expanded beyond the original scope. You did the extra work expecting additional payment, but the owner or GC claims it was included in the original bid.

This is the hardest construction payment dispute to win because it often comes down to your word against theirs about what was agreed to.

To succeed, you need to prove:

The specific work was outside the original contract scope
The owner or GC requested the additional work (emails, texts, or even verbal requests)
The reasonable value of the additional work
The owner or GC accepted the benefit of the additional work

Best evidence: Written change orders signed before you performed the work. If you don't have that (most contractors don't for small change orders), use emails, text messages, or contemporaneous notes documenting the request.

Legal theory: Quantum meruit for the additional work. Even if the original contract has a "no oral modifications" clause, California courts often enforce oral change orders when the work was actually performed and accepted (Cal. Civ. Code §1698).

4. Mechanic's Lien Demand (California Civil Code §8400-8494)

This isn't a separate scenario — it's a remedy available in most of the above scenarios. But it's complex enough to deserve its own section.

Mechanic's Lien Timeline (California):

Day 1-20: Serve preliminary notice within 20 days of first furnishing labor/materials (Civil Code §8204). Use certified mail or personal service. Don't skip this.
Project completion: Note when the project was completed or abandoned. This starts the clock for recording your lien.
Within 90 days of completion: Record your mechanic's lien with the county recorder (Civil Code §8412). The lien must include specific information: property description, amount owed, description of work performed, verification under penalty of perjury.
Within 90 days of recording lien: File a lawsuit to foreclose on the lien (Civil Code §8460). If you don't file suit within 90 days, your lien expires and becomes unenforceable.

Critical timing issue: You have only 90 days from completion of the work to record your lien. Miss this deadline and you lose lien rights permanently. I see contractors lose tens of thousands of dollars because they waited too long to record.

When to send a mechanic's lien demand letter: Before you record the lien. The threat of a lien is often more effective than actually recording it. Your demand letter should:

Reference your preliminary notice (attach a copy)
State the amount owed with itemization
Cite Civil Code §8400 giving you lien rights
Give them 10-14 days to pay before you record the lien
Explain consequences: clouded title, inability to sell/refinance, foreclosure lawsuit

5. Defective Work Claims (You're the Defendant)

The tables are turned: the property owner or GC claims your work is defective and is demanding you fix it or pay damages. This is a demand letter you're receiving, not sending.

How to respond:

Inspect immediately: Document the current condition with photos and notes. Determine if the alleged defects are actually your fault or caused by other trades, owner misuse, or natural wear.
Review your contract: What warranties did you provide? What's your liability for defects? Is there an arbitration clause?
Check your insurance: Commercial general liability policies often cover construction defect claims. Report the claim to your insurer immediately.
Respond in writing within 30 days: Don't ignore the demand. Offer to inspect or repair (if genuinely your fault), dispute liability (if not your fault), or offer settlement (if exposure is uncertain).

California has a complex statutory scheme for construction defect claims under Civil Code §895 et seq. (SB 800). Owners must follow specific pre-litigation procedures before suing. If they threaten to sue without following these procedures, their threat has no teeth.

6. License Bond Claims (California Contractors State License Board)

If a licensed contractor doesn't pay you, you can file a claim against their contractor license bond. Every licensed contractor in California must maintain a $25,000 bond (Business & Professions Code §7071.5).

Who can file: Anyone damaged by a licensed contractor's violation of the Contractors License Law, including failure to pay subcontractors or suppliers.

Process:

Obtain a judgment against the contractor (small claims or superior court)
File a claim with the Contractors State License Board (CSLB) within prescribed timeframe
The bond company investigates and pays valid claims up to $25,000

The bond is not a replacement for filing a lawsuit — you still need a judgment first. But it's a recovery mechanism when the contractor is judgment-proof (no assets to collect against).

7. Retention Payment Disputes

The owner or GC is withholding retention (typically 10% of each progress payment) even though the project is complete and you've fulfilled all punch list items.

California law on retention:

California Civil Code §8814: Retention on private works must be released within 45 days after recordation of a notice of completion, or within 75 days after completion if no notice of completion is recorded.

If the owner/GC is holding retention beyond these statutory deadlines without a valid reason (such as pending dispute over defects), your demand letter should cite §8814 and demand immediate release. You can also record a lien for the retention amount.

What to Include in Your Construction Demand Letter

1. Preliminary Notice Reference (Critical for Mechanic's Liens)

If you served a preliminary notice (and you should have), reference it in the first paragraph and attach a copy. This establishes that you preserved your mechanic's lien rights.

Example: "On January 10, 2024, I served a Preliminary Notice pursuant to California Civil Code §8204, notifying you of my right to file a mechanic's lien for any unpaid amounts. A copy of that notice is attached."

2. Detailed Scope of Work and Amounts Owed

Construction disputes often involve disagreements about what was included in the scope. Be specific:

Original contract amount and scope
Progress payments received (if any)
Change orders with dates and descriptions
Current balance owed, broken down by line item
Retention amounts withheld (if applicable)

3. Mechanic's Lien Warning

This is your most powerful leverage tool. Include language like:

"Pursuant to California Civil Code §8400, I have the right to record a mechanic's lien against the property located at [address] for the unpaid amount of $[amount]. If payment is not received within 10 days, I will record a mechanic's lien with the [County] County Recorder. This lien will cloud title to your property and prevent you from selling or refinancing until the debt is satisfied."

4. License Information and Compliance

Include your contractor license number. This shows you're a legitimate licensed contractor, which strengthens your credibility. If you performed work without a license, you have a major problem — California law (Business & Professions Code §7031) bars unlicensed contractors from recovering compensation in court.

5. Applicable Statutes

For California construction demand letters, I typically cite:

Civil Code §8000-8850: Mechanic's lien law
Civil Code §8204: Preliminary notice requirement
Civil Code §8400: Right to record mechanic's lien
Civil Code §8412: 90-day deadline to record lien
Civil Code §8460: 90-day deadline to file foreclosure suit
Civil Code §8814: Retention release deadlines
Business & Professions Code §7071.5: Contractor license bond

Construction Payment Dispute? Mechanic's Lien Help Available.

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I'll draft a custom construction demand letter with mechanic's lien analysis — including review of your preliminary notice compliance and lien deadlines.

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Mechanic's lien compliance review — did you serve preliminary notice on time?
Analysis of lien deadlines and recording requirements
Typically increases recovery rates to 75-80% for construction disputes
48-hour turnaround in most cases
Includes guidance on recording lien if they don't pay

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Sample Construction Demand Letter Language

Here's how I structure a demand letter for a contractor pursuing unpaid final payment with mechanic's lien leverage:

[Property Owner Name and Address]

Re: Final Payment Demand — $45,000 for Construction Work at [Property Address]

I am a licensed contractor (CA License #123456) who performed construction services at your property located at [address] between January 15, 2024 and March 30, 2024. Despite completion of all contracted work, you have failed to pay the final invoice of $45,000, which was due on April 15, 2024.

Summary of Work and Payment

Pursuant to our Construction Agreement dated January 10, 2024 (attached), I agreed to perform the following work:

Complete kitchen remodel including demolition, framing, electrical, plumbing, drywall, cabinetry, and tile work
Total contract price: $120,000
Payment schedule: $30,000 deposit, three progress payments of $22,500, final payment of $45,000 upon completion

I completed all work on March 30, 2024. You accepted the work and signed the final completion certificate (attached). You received and paid the first three progress payments totaling $75,000. The final payment of $45,000 remains unpaid despite multiple requests.

Mechanic's Lien Rights

On January 12, 2024, I served a Preliminary Notice pursuant to California Civil Code §8204, preserving my right to record a mechanic's lien for any unpaid amounts (copy attached). Pursuant to California Civil Code §8400, I have the right to record a mechanic's lien against your property for the unpaid amount of $45,000.

A mechanic's lien is a powerful legal remedy that clouds title to your property. Once recorded, the lien:

Prevents you from selling the property without satisfying the lien
Prevents you from refinancing or obtaining additional financing
Gives me the right to foreclose on the property through a court action
Remains on public record until paid or released

Demand for Payment

I demand payment of $45,000 within 10 days of this letter. If I do not receive payment by [date], I will:

Record a mechanic's lien with the [County] County Recorder's Office
File a lawsuit to foreclose on the lien and recover the unpaid amount plus interest at 10% per annum (Cal. Civ. Code §3289), attorney's fees and costs per our contract's prevailing party provision, and lien foreclosure costs

This template combines breach of contract basics with construction-specific leverage: preliminary notice, mechanic's lien rights, and concrete consequences (clouded title, foreclosure).

Frequently Asked Questions

This is the most common mistake contractors make, and it's devastating. If you're a subcontractor, supplier, or laborer (anyone other than the direct contractor with the property owner), you must serve preliminary notice within 20 days of first furnishing labor or materials. If you miss this deadline, you lose your mechanic's lien rights entirely (Cal. Civ. Code §8204). You can still sue for breach of contract, but you can't lien the property — which eliminates your most powerful leverage. There are narrow exceptions (e.g., if the owner or GC fraudulently concealed information), but these rarely apply. The lesson: always serve preliminary notice within 20 days, even if you think you'll get paid.

Yes, but your lien amount may be limited. Under California Civil Code §8422, if the property owner paid the general contractor in full before you recorded your lien, your lien is limited to the lesser of: (1) the amount the owner still owes, or (2) the amount you're owed. This means if the owner already paid the GC $200,000 for the whole project, and you're a subcontractor owed $30,000 by the GC, you can still lien the property for $30,000 — but the owner can defend by showing they already paid. This is why serving preliminary notice is critical — it puts the owner on notice that you're owed money, so they can't claim they innocently paid the GC twice.

You have 90 days from the date of completion of the work of improvement (Civil Code §8412). "Completion" is defined as actual completion of the work, abandonment without completion, or recordation of a notice of completion or cessation (Civil Code §8180). If the owner records a notice of completion, you have only 30 days from that recordation to record your lien if you're a direct contractor, or 90 days if you're a subcontractor. This is an absolute deadline — miss it and your lien rights are gone forever. I recommend recording the lien well before the 90-day deadline expires to avoid last-minute filing issues.

Recording the lien is just the first step. The lien clouds title and creates pressure for payment, but it doesn't actually collect money. Within 90 days of recording the lien, you must file a lawsuit to foreclose on the lien (Civil Code §8460). If you don't file suit within 90 days, your lien expires and becomes unenforceable. The foreclosure lawsuit is like a mortgage foreclosure — you're asking the court to force sale of the property to satisfy your debt. In practice, most cases settle before trial because property owners want to avoid foreclosure. But you must actually file the suit to maintain pressure.

Yes. Mechanic's lien rights aren't limited to work covered by written contracts. As long as you performed labor or furnished materials for a work of improvement at the request of the owner or someone authorized to act on the owner's behalf (like the GC), you can lien for the reasonable value of that work (Cal. Civ. Code §8400). The challenge is proving the value and that the work was actually requested. Save emails, text messages, photos, and contemporaneous notes documenting the extra work request. In your lien and demand letter, describe the change order work separately from the original contract scope and cite the quantum meruit legal theory for recovering reasonable value.

This is a serious problem. California Business & Professions Code §7031 provides that unlicensed contractors cannot recover compensation for work requiring a license. This is a complete bar to recovery — even if you did perfect work and the owner benefited, you can't sue or lien for payment if you weren't properly licensed when you did the work. The only narrow exception is if you had a valid license when you contracted for the work but it lapsed during performance due to inadvertence (not willful non-renewal). If you're unlicensed, don't send a demand letter threatening to sue — the owner's lawyer will immediately recognize your lack of standing and you'll have no leverage. Your only option is to negotiate a settlement and hope the owner doesn't realize they have this defense.

For demand letters I draft in construction payment disputes where the contractor properly served preliminary notice and has lien rights, I see full payment or settlement in 75-80% of cases within 30 days. The mechanic's lien threat is extraordinarily powerful — property owners can't ignore it because it directly affects their ability to sell or refinance. For construction disputes without lien rights (unlicensed contractors, missed preliminary notice deadline, or disputes outside the 90-day lien recording window), success rates drop to 50-60% — similar to general breach of contract cases. The key variable is whether you preserved your lien rights through timely preliminary notice.

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Disclaimer: I'm Sergei Tokmakov, a California attorney (State Bar #279869). This website provides legal information, not legal advice. Every construction payment dispute is different, and mechanic's lien law is highly technical with strict deadlines. Reading this content does not create an attorney-client relationship. If you need specific legal advice for your situation, especially regarding mechanic's lien compliance and deadlines, contact me through the intake form or schedule a consultation.