How to Hire a General Contractor in California: Full Guide

Why Hiring Unlicensed in California Is a Legal Minefield

Skipping a license check in California isn't a small oversight — it's a decision with felony-level consequences in some neighborhoods and a legal doctrine that can unwind your entire contract. Before you sign anything, understand exactly what the law allows and what it punishes.

California's Business and Professions Code § 7031 is often described as both a "sword" and a "shield." The shield means an unlicensed contractor generally cannot sue you to collect payment for work performed. The sword is sharper: under § 7031(b), a homeowner who hired an unlicensed contractor can sue to recover all compensation paid — the entire amount, not just a partial refund (see this legal analysis of California's licensing law). Courts have framed these penalties as "strict and harsh," deliberately so, because deterring unlicensed contracting is considered to outweigh any unfairness between the two parties.

The stakes rise sharply in disaster zones. According to the LA County District Attorney's Office, unlicensed contracting in a Governor-proclaimed disaster area — such as the Eaton fire zone — is a felony punishable by up to three years of imprisonment and/or a $10,000 fine. Enforcement is not theoretical: in a recent joint operation with the Contractors State License Board, the DA's office announced felony charges against five unlicensed contractors targeting Pacific Palisades and Eaton Canyon fire areas. Multilingual warning signs are being distributed in affected neighborhoods in five languages, a sign of how widespread the problem is.

Here's what every California homeowner should keep in mind:

• Licensing must be maintained "at all times during the performance" of the contract — not just on the day you sign it.
• You are still the victim of a crime even if you knowingly hired an unlicensed contractor, so report unlicensed activity rather than staying quiet.
• Subcontractor licenses matter too: under *Kim v. TWA Construction* (2022), a GC who uses an unlicensed sub can be forced to disgorge sums paid for that work — one homeowner recovered $10,000 over unlicensed tree-trimming.

That last point deserves emphasis. The disgorgement risk isn't limited to your general contractor's own license. If a GC hires an unlicensed subcontractor, you may be entitled to recover money paid for that subcontractor's scope of work, even when the rest of the project went fine.

The simplest protection takes minutes. The CSLB lets you verify any California contractor's license, insurance, and bonding status at www.cslb.ca.gov before you commit a dollar. The Altadena Builder Directory builds this step directly into its free registry: every listing is checked against CSLB records, and a verification seal appears only once a license match is confirmed — so the license check you can't afford to skip is already done for you.

Verify Licenses First — the GC's and Every Subcontractor's

If a contractor can't prove they're licensed, everything else about the hire is irrelevant. California law treats unlicensed construction work so severely that a homeowner can recover all compensation paid — and the stakes extend beyond the general contractor to every subcontractor on the job.

Start at the California Contractors State License Board. Licensed contractors must provide their CSLB license number, carry required insurance and bonding, and pull permits for the work. You can check any license, search for licensed contractors, and file complaints directly at www.cslb.ca.gov. Ask for the number in writing, then verify it yourself — never rely on a business card or a website badge.

The consequences of skipping this step are real. Under Business & Professions Code § 7031, an unlicensed contractor cannot sue to collect payment, and the homeowner who hired them can sue to recover everything paid. Courts have called California's penalties "strict and harsh" — deliberately, to protect the public from "incompetence and dishonesty."

Don't stop at the GC. In Kim v. TWA Construction, Inc. (2022), a homeowner recovered $10,000 in disgorgement from a general contractor who had hired an unlicensed tree-trimming subcontractor. The court held that a GC who uses an unlicensed sub may be barred from recovering payment for that scope — and forced to return sums already paid. Ask your GC to confirm every subcontractor holds an active CSLB license before work begins.

The risk is heightened in fire-rebuild zones. The LA County District Attorney's Office, working with the CSLB, has charged five unlicensed contractors with felonies in a recent joint operation targeting disaster areas. Unlicensed contracting in a Governor-proclaimed disaster zone is a felony punishable by up to three years in prison and/or a $10,000 fine — and as the DA's office notes, you are still a victim of a crime even if you knowingly hired an unlicensed contractor.

• Get the CSLB license number in writing from the GC and every major subcontractor.
• Verify each license yourself at cslb.ca.gov — check status, classification, and expiration.
• Confirm the license stays active throughout the project; licensure must be maintained at all times during performance, not just at signing.
• Ask for proof of insurance and bonding, which licensed contractors are required to carry.

For Altadena homeowners, the Altadena Builder Directory offers a free CSLB license-lookup tool so you can verify any California contractor in seconds, and each listing displays a verification seal once its license match is confirmed against CSLB records — including builders like JMB Builders LLC (CSLB #1103479). Every listing in the directory is license-verified against the state board, so you can start your search from a verified baseline rather than a leap of faith.

Define Your Project Clearly in a Tight, High-Cost Market

Hiring a contractor in California right now is less like shopping and more like competing. Builders are booked, labor is scarce, and vague project descriptions get vague — or ignored — bids.

The numbers explain why. Southern California building permits rose 14.3% year-over-year in Q2 2025, with residential permits up 17.8%, while construction unemployment in the region sits at just 3.2%. Some firms wait three to five months to fill specialized roles. When demand outstrips supply, contractors can afford to be selective about which clients they take on.

Cost pressure compounds the problem. SoCal material costs run 11.3% above national averages, and LA County construction wages have climbed to $42.75 per hour. A homeowner who shows up without a defined budget and scope invites the two worst outcomes in a hot market: a rushed ballpark estimate or a bid that quietly assumes the minimum.

This is why preparation matters more than negotiation. As one industry analysis puts it, a tight market doesn't punish people who pay too little — it punishes people who don't know what they're hiring for. Credentials, in that framing, are a filter, not a verdict: a valid CSLB license tells you a contractor is legal, not that they're right for your kitchen remodel or ADU.

Before you contact a single builder, write down three things:

• Scope — what gets built or changed, and just as importantly, what doesn't.
• Budget — a realistic range informed by California's above-average costs, not national averages.
• Timeline — when you want to start, and any hard deadlines like insurance or escrow dates.

A one-page project brief also protects you legally. California treats unlicensed contracting harshly — in disaster zones it's a felony carrying up to three years of imprisonment and a $10,000 fine, and the LA County DA's Office is actively prosecuting it. A clear scope makes it easier to spot the contractors who dodge permits or avoid putting things in writing.

Once your brief is ready, verify every builder against the CSLB before comparing bids. The Altadena Builder Directory makes that step fast: every listing in the registry is license-verified against CSLB data, and its free lookup tool lets you check any California contractor — not just the ones listed there — before you commit to a conversation.

Contracts, Deposits, and the New 2026 Payment Rules

The contract you sign with your general contractor is where a good project either stays on track or goes off the rails — and California's payment rules are changing in ways that directly affect what you agree to on paper.

The biggest change on the horizon is Senate Bill 61. According to a legal analysis from O'Melveny & Myers, the new law caps retention withheld on most new private construction contracts at 5% of each progress payment and of the total contract price — down from the 10% industry norm. It applies to contracts entered into after January 1, 2026.

Critically, the cap cannot be waived by agreement, and prevailing parties in violations may recover attorneys' fees. The law aligns private construction with public works rules, which have carried a 5% cap since 2011.

Most Altadena homeowners can breathe easier: typical single-family residences of four stories or fewer are exempt from SB 61. The law primarily targets larger and mixed-use private projects. Still, confirm which rules apply to your specific contract before signing — especially for ADU projects or multi-unit builds that may fall outside the exemption.

• Whether retention terms match the 5% cap if your project is covered by SB 61
• Whether your GC's subcontractors are licensed — under Kim v. TWA Construction (2022), a homeowner recovered $10,000 in disgorgement for unlicensed subcontractor work
• That your contractor's CSLB license number appears on the contract itself
• How the payment schedule ties to completed, inspected milestones

Here's where honesty matters: the research behind this article did not cover California's deposit limits, standard payment schedules, or recommended contract clauses for residential projects. We won't invent rules that could cost you money. For authoritative guidance on down payments and contract requirements, go directly to the source — the California Contractors State License Board at www.cslb.ca.gov, where consumers can check licenses, find licensed contractors, and file complaints.

Before you sign anything, verify the license behind the name. The Altadena Builder Directory's free CSLB license-lookup tool lets you confirm any California contractor in seconds, and every listing in the registry carries a verification seal once a license match is confirmed.

Your Step-by-Step Hiring Checklist (and Where to Find Verified Builders)

A contractor's license number is the most important piece of information you'll collect during the hiring process — and the one homeowners most often forget to verify. California courts take licensure so seriously that a contractor who lets a license lapse mid-project can be forced to return every dollar paid, even if the work itself was done well.

Start with the CSLB check. Licensed contractors must provide their license number, carry required insurance and bonding, and pull permits, and you can verify any license, search for licensed firms, or file a complaint at www.cslb.ca.gov. Confirm the license is active and will stay active — California requires licensure be maintained "at all times during the performance" of the contract, not just on signing day.

Next, ask who's actually doing the work. Under Kim v. TWA Construction (2022), a general contractor who hires an unlicensed subcontractor can be forced to disgorge payments for that scope — one homeowner recovered $10,000 for unlicensed tree-trimming work. Request the license numbers of major subcontractors and verify those too.

Then review the contract terms carefully. If your project is a larger or multi-story private build, note that SB 61 caps retention at 5% on most new private contracts starting January 1, 2026 — though typical single-family residences of four stories or fewer are exempt, so confirm which rules apply to yours.

Finally, know your reporting duty. Unlicensed contracting in a disaster zone is a felony punishable by up to three years in prison and a $10,000 fine, and the LA County DA's Office urges homeowners to report unlicensed activity even if they hired knowingly. Your checklist:

• Verify the GC's CSLB license is active and covers your project type
• Confirm insurance and bonding are in place, and that permits will be pulled
• Check the license status of major subcontractors
• Review contract terms, including retention and payment provisions
• Report suspected unlicensed activity to the CSLB

If you'd rather skip the legwork, the Altadena Builder Directory maintains a free registry of contractors serving Altadena — ADU builders, custom home builders, remodelers, fire-rebuild specialists, and design-build firms — with every listing license-verified against CSLB and marked with a verification seal once a match is confirmed. Ratings come only from real attributed public sources, and paid placements are always labeled; the current featured listing, JMB Builders LLC (CSLB #1103479), is marked as such. The directory also offers a free CSLB license-lookup tool so you can run the same verification on any California contractor you're considering.

With demand high — Southern California building permits rose 14.3% year-over-year in Q2 2025 — good contractors book up fast, but a tight market is no reason to skip verification.