How to Avoid Contractor Scams in California

The single best defense against a contractor scam in California is to verify the CSLB license before you pay anything: confirm it's Active, in the right classification, and held by the business you're hiring. Then watch for the classic scam signals: large upfront or cash-only payments, no written contract, high-pressure “today only” offers, and door-to-door solicitation after a storm. Keep payments tied to completed work, and know your leverage: if an unlicensed operator takes your money, California law lets you sue to recover what you paid.

Verified against CSLB on July 24, 2026 · reflects current CSLB rules and California law.

Summary — key takeaways

Verify the CSLB license is Active and in the right classification before you pay.
California caps a home-improvement down payment at 10% of the price or $1,000, whichever is less.
Get a written contract; avoid cash-only deals and large upfront payments.
Be wary of door-to-door, post-disaster, and “today only” pressure tactics.
Tie payments to completed milestones; never pay in full up front.
Scammed by an unlicensed operator? You can sue to recover all money paid (BPC §7031(b)).

Verify the license before anything else

Most scams collapse at the first check. Look the contractor up on the CSLB "Check a License" tool or in this directory and confirm the license is Active, the classification matches your project, and it's held by the business you're actually hiring. CSLB license numbers are 6 or 7 digits; a number that's the wrong length, or one that pulls up a different company, is an immediate stop sign.

A contractor who won't give a license number, or whose number doesn't match their name on CSLB, is the clearest warning sign of all. Borrowed and made-up numbers are a staple of contractor fraud, which is why the lookup, not the business card, is what counts.

Watch the money: deposits, cash, and pressure

California limits a home-improvement down payment to 10% of the contract price or $1,000, whichever is less (Business & Professions Code §7159). Be wary of cash-only terms, demands for a large payment before work starts, or pressure to decide 'today.'

Tie payments to completed milestones, and never make the final payment until the work is finished and any required inspection has passed.

Get everything in writing

A legitimate California home-improvement job uses a written contract that names the contractor, their license number, the scope, the price, and the payment schedule. Get proof of the contractor bond and insurance, confirm permits will be pulled in the contractor's name, and keep records of every payment.

Verbal promises and handshake deals are where disputes start, and where scammers operate.

Extra caution after storms and disasters

Disasters draw out-of-area and unlicensed operators going door to door. After a wildfire, storm, or flood, slow down: verify the license, get multiple written bids, and don't sign or pay on the spot.

California treats this seriously: contracting without a license for repairs in a declared disaster area can be charged as a felony (Business & Professions Code §7028.16). CSLB's enforcement teams specifically target post-disaster unlicensed activity, and you can verify any contractor's status and report concerns to CSLB.

If you've been scammed: the law is on your side

Unlicensed contracting is a crime in California. A first offense is a misdemeanor punishable by up to six months in county jail and/or a fine of up to $5,000, repeat offenses carry mandatory jail minimums, and CSLB can issue administrative citations of $1,500 to $15,000 for unlicensed work (Business & Professions Code §7028.7, the range for citations issued on or after July 1, 2026). If you hired the operator, §7028 also designates you a crime victim eligible for restitution.

Your strongest civil tool is Business & Professions Code §7031(b): a person who used an unlicensed contractor may sue to recover all compensation paid, regardless of the quality of the work (a narrow exception protects contractors who were licensed before the work and promptly fixed a lapse). The flip side, §7031(a), generally bars an unlicensed contractor from suing you to collect payment. Document everything and consider small-claims or civil court.

Frequently asked questions

What's the most common contractor scam in California?

Taking a large upfront deposit and then disappearing or doing little work. Limiting the down payment to the legal cap (10% or $1,000, whichever is less) and tying payments to completed work is the main defense.

How do I check if a contractor is legitimate in California?

Verify the CSLB license on the "Check a License" tool or in this directory: confirm it's Active, in the right classification, with the bond and workers' comp on file, and held by the business you're hiring.

How much should I pay a contractor up front?

No more than the legal cap for home-improvement work: 10% of the contract price or $1,000, whichever is less. A demand for more up front, or for cash only, is a red flag.

Can I get my money back from a contractor scam?

If the operator was unlicensed, California law lets you sue to recover all compensation you paid, regardless of the work's quality (Business & Professions Code §7031(b)), subject to a narrow substantial-compliance exception. You may also be eligible for restitution through a criminal case against the unlicensed operator.

What penalties do unlicensed contractors face in California?

A first offense is a misdemeanor with up to six months in county jail and/or a fine of up to $5,000; repeat offenses bring mandatory jail time and larger fines. CSLB can also issue citations of $1,500 to $15,000, and unlicensed repairs in a declared disaster area can be charged as a felony.

Where do I report a contractor scam in California?

To CSLB, through its consumer complaint process. CSLB can investigate and take disciplinary or enforcement action against licensed and unlicensed contractors.

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