How to Sue a Contractor in Small Claims Court in California

A contractor who took your deposit and disappeared, left a half-finished kitchen, or did work so shoddy you need to pay someone else to fix it — small claims court is built for exactly this situation. California's $12,500 individual claim limit covers most residential contractor disputes, and you don't need a lawyer (attorneys aren't even allowed to represent you at the hearing).

Verify the Contractor's Legal Name and License Status

Before you fill out a single form, you need to know exactly who you're suing. A misnamed defendant can make a judgment difficult to enforce; verify the legal identity before filing.

Licensed contractors: Search the Contractors State License Board (CSLB) at cslb.ca.gov. The license record shows the contractor's legal name, business entity type (sole proprietor, LLC, corporation), and bond information. Use the legal name on your court filing, not the trade name on the truck.

Unlicensed contractors: A missing CSLB search result does not establish that the contractor was unlicensed; verify the name or license number with CSLB. When a license is required for the work, California Business and Professions Code § 7031 generally bars an unlicensed contractor from recovering compensation and can require return of compensation, subject to the statute's exceptions. Check the county clerk's fictitious business name (DBA) records to find the individual behind the business name.

Corporations and LLCs: Search the California Secretary of State's bizfile portal (bizfileonline.sos.ca.gov) to confirm the registered entity name and find the Agent for Service of Process. Name the entity exactly as it appears in the state records.

Calculate Your Damages and Check the Limit

Add up what the contractor owes you: the deposit paid minus any work completed at fair market value, the cost to hire someone else to finish or fix the job, and any directly related expenses (temporary housing during a stalled renovation, storage fees for displaced belongings).

The individual small claims limit in California is $12,500. If your total damages exceed that, you have two options: waive the excess and accept the $12,500 cap (you permanently give up the rest), or file in civil court (which allows lawyers but costs more and takes longer). Most homeowner–contractor disputes fit within the limit.

If § 7031 applies, you can seek return of compensation paid for work performed while the contractor was unlicensed; whether the statute applies depends on the license requirement and its exceptions.

Send a Written Demand Letter

California requires you to demand payment before filing. Form SC-100 asks whether you made a demand and when. Send a clear letter stating: what happened, the total amount owed, a payment deadline (14–30 days is standard), and that you will file in small claims court if payment isn't received.

Send it by certified mail with return receipt requested so you have proof of delivery. Keep the tracking receipt and the green return card — they become part of your evidence at trial.

File Your Claim at the Right Courthouse

File Form SC-100 (Plaintiff's Claim) at the courthouse in the county where the contractor's business is located, where the work was performed, or where you signed the contract. You choose among any qualifying venue.

Filing fees depend on the claim amount: $30 for claims up to $1,500, $50 for $1,500.01–$5,000, and $75 for $5,000.01–$12,500. If you qualify for a fee waiver (receiving Medi-Cal, CalFresh, SSI, or earning at or below 200% of federal poverty guidelines), submit Form FW-001 alongside your claim.

Serve the Contractor and File Proof

You cannot serve the papers yourself. An adult who is not a party to the case — a friend, a registered process server, or the county sheriff — must deliver the documents to the contractor at least 15 calendar days before the hearing (20 days if the contractor is in a different county). Then file Form SC-104 (Proof of Service) with the court clerk at least 5 court days before the hearing date.

Prepare Your Evidence

Contractor disputes are won with documentation. Organize four identical copies of your evidence — one for the judge, one for the contractor, one for the court clerk, and one for yourself:

• The signed contract or written agreement
• Proof of payment (canceled checks, bank transfers, Venmo/Zelle screenshots)
• The demand letter and certified mail receipt
• Photographs of incomplete or defective work (timestamped)
• Repair estimates from other licensed contractors
• CSLB license search results (especially if unlicensed)
• Any text messages or emails with the contractor

Judges hear each case in roughly 10–15 minutes. A clearly organized binder lets you walk through the story quickly — contract signed, money paid, work abandoned or botched, cost to fix.

What Happens If You Win

The judge typically takes the case under submission and mails a written judgment within a few days. If you win, the contractor can appeal within 30 days after the clerk mails or delivers the Notice of Entry of Judgment if they appeared at the hearing. If the contractor missed the hearing, they can move to vacate within 30 days after the clerk mails the notice; if they were not properly served and did not appear, the deadline is 180 days after they discover or should have discovered the judgment. If the motion is denied, they have 10 days after the court mails or delivers notice of the denial to appeal. Once the applicable deadlines pass without a challenge, or a filed challenge and any follow-on appeal period end, if the judgment remains in place and the contractor has not paid voluntarily, you can pursue enforcement: wage garnishment, a bank levy, or recording an Abstract of Judgment as a lien on their property.

Our California small claims filing guide walks you through every step from the demand letter to collecting your judgment, with printable checklists, a deadline calendar, and an evidence binder organizer.

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