Check a Contractor's License in California: What to Look For

Why 'Active' Status Isn't Enough: The License Fraud Problem

You found a bid with a license number, checked it on the CSLB website, and saw "Active" in green. That should mean you're safe — but it doesn't. The number on that bid sheet may not belong to the person standing in your driveway.

Fraudsters don't invent license numbers; they steal real ones. According to legal analysis of California's license fraud statute, one documented pattern involves an unlicensed contractor copying an active license number directly from the CSLB public database onto a bid sheet. The paperwork looks legitimate because the number is legitimate — it just belongs to someone else entirely.

Here's what makes this trap dangerous: the quality of the work is legally irrelevant. California Business and Professions Code Section 7027.3 makes it a crime to use "fake, stolen, borrowed, or expired contractor license numbers to secure construction contracts, obtain municipal permits, or deceive consumers" — and as defense attorneys explain, even perfect building work done under an unauthorized license number constitutes fraud. The statute explicitly covers "any person, licensed or unlicensed," and it applies even to a $200 job.

The penalties scale sharply:

• BPC 7027.3 is a "wobbler" — a misdemeanor carrying up to 1 year in jail and a $1,000 fine, or a felony carrying 16 months to 3 years in state prison and up to $10,000, with mandatory victim restitution
• If the fraudulent taking exceeds $950, grand theft charges under PC 487 can stack on top
• Work performed in a declared disaster zone elevates unlicensed contracting to a felony — up to 3 years imprisonment and a $10,000 fine

That last point matters enormously for Altadena and Eaton Canyon homeowners right now. The LA County District Attorney's Office is actively partnering with CSLB to shut down unlicensed activity in the Pacific Palisades and Eaton Canyon fire disaster zones — in December, DA Nathan J. Hochman announced felony charges against five unlicensed contractors following a joint operation. Rebuild zones attract operators who know demand outpaces vetting, and an active license number on a bid sheet proves nothing about who actually holds it.

The fix is simple but non-negotiable: verify that the license holder's name matches the person or business presenting it — not just the status field. The official CSLB lookup tool shows the license holder's identity alongside complaint disclosure, so a two-minute cross-check of name, classification, and entity catches most stolen-number schemes.

Every listing in the Altadena Builder Directory is license-verified against CSLB data, with a verification seal shown once a confirmed license match is in place — so Altadena homeowners can start from a pool where the number and the name already line up. Wherever you find your builder, take that same extra step before signing anything.

The Three-Part Check: Name Match, Classification Fit, and True Status

A green "active" badge in the state database is not proof you're protected. Fraudsters routinely copy real license numbers from the public database onto bid sheets, so the number can look perfectly legitimate while actually belonging to someone else — and even flawless construction work done under a borrowed number counts as license fraud under BPC 7027.3. That's why serious verification is a three-part check: name, classification, and true status.

Check 1: The name match. When you pull up a license number, compare the license holder's name on the record against the person or company presenting it — on their business card, bid sheet, and permit application. If the number is active but issued to a different individual or corporate entity, the paperwork is stolen or borrowed. This matters especially for corporate licenses, which are issued exclusively to a specific corporate registration; a change in business structure, such as a sole owner converting to a corporation, requires an entirely new license number that cannot simply be renewed.

Check 2: The classification fit. California licenses are scoped by classification — B for general building, A for engineering trades, and C-designations for specialties like C-10 electrical or C-20 HVAC. The classification on the record must actually cover your project's scope. A licensed specialty contractor who uses another classification's number to bid on work they're not qualified for can be prosecuted under the same fraud statute, so a mismatch is a legal problem, not a technicality.

Check 3: The true status. "Active" versus "expired" is too blunt a screen. Look deeper:

• An inactive license cannot legally be used for contracting and carries no bond, no workers' compensation, and no qualifying individual — none of the consumer protections you're verifying for.
• A suspended license lacks "good standing" and the holder cannot receive a pocket card until the suspension is cleared.
• Any work performed while a license is expired counts as unlicensed work, even if it's renewed later.
• Corporate licenses are canceled when the Secretary of State records show the entity has dissolved, merged, or surrendered its right to do business in California.

The stakes are real in Altadena right now. The LA County District Attorney is actively prosecuting unlicensed contractors in the Eaton Canyon fire disaster zone, where felony charges can carry up to 3 years imprisonment and a $10,000 fine, and DA Nathan J. Hochman's advice is blunt: "Always verify your contractor's license before hiring."

Run all three checks yourself using the CSLB's official license lookup, which also discloses complaint history, or by phone at 800-321-2752. If you're evaluating Altadena-area builders, the Altadena Builder Directory's free CSLB lookup tool verifies any California contractor, and every listing in the registry is license-checked against CSLB data — confirmed matches display a verification seal, so a builder like JMB Builders LLC (CSLB #1103479) shows its credential right on the listing.

How to Run the Official CSLB Lookup (Step by Step)

The CSLB license lookup takes less than two minutes to run — and it can save you from a contractor whose paperwork looks perfect but isn't. The catch: a number that shows "active" in the database can still be stolen or borrowed, a documented fraud pattern under BPC 7027.3.

Step 1: Open the official tool. Go to the CSLB online license lookup and search by license number, business name, or personnel name. The record includes complaint disclosure, so read the full profile — not just the status line.

Step 2: Match the name, not just the number. Verify the license holder's name matches the person or business presenting it. Unlicensed operators have copied active numbers straight from the CSLB public database onto bid sheets to appear legitimate.

Step 3: Decode the status. Each status carries different consumer protections:

• Active — valid for contracting, backed by bonds and workers' compensation.
• Inactive — cannot legally be used for contracting and carries no bond, workers' comp, or qualifier protections.
• Suspended — not in good standing; no pocket card is issued until the suspension clears.
• Expired — any work performed while expired counts as unlicensed work, even if renewed later.

Step 4: Check classification fit. Cross-reference the license classification (e.g., B-2 for general remodeling, C-10 for electrical) against your actual project scope. A licensed contractor who uses another classification's number to bid on work they're not qualified for can be prosecuted for fraud.

Prefer the phone? Call CSLB at 800-321-2752. Per the CA.gov service page, wait times are shortest Wednesday through Friday, 9:30–11:30 a.m. or 2–4 p.m.

If something doesn't match — report it. A mismatched name, inactive status, or suspicious number warrants a call to CSLB's Statewide Investigative Fraud Team (SWIFT), which runs weekly undercover stings and sweeps statewide, including posing as homeowners on Craigslist, Yelp, and Angi. Enforcement is especially active near Altadena: the LA County DA announced felony charges against five unlicensed contractors in the Eaton Canyon fire zone in December — unlicensed work in a declared disaster zone carries up to 3 years imprisonment and a $10,000 fine.

Even if you knowingly hired someone unlicensed, you're still considered a victim under California law and should report it. The Altadena Builder Directory runs this same CSLB verification on every listing before it earns a verification seal, and its free license-lookup tool lets you check any California contractor in seconds — so a mismatch never reaches your contract in the first place.

Verify Before You Hire: Altadena's License-Checked Builder Registry

Knowing what to check is only half the battle — you also need a fast, reliable way to actually do it. For Altadena homeowners, especially those rebuilding after the Eaton Canyon fire, verification isn't optional: the LA County District Attorney is actively prosecuting unlicensed contractors in the fire disaster zone, and unlicensed contracting in a declared disaster zone is a felony carrying up to 3 years imprisonment and a $10,000 fine.

The first step is always the same: run the contractor through the official CSLB license lookup, which lets you verify license information including complaint disclosure. Remember that a number can show "active" in the database yet still be fraudulent if it belongs to someone else — one documented fraud pattern involves copying an active license number straight from the CSLB public database onto a bid sheet. So confirm the license holder's name matches the person or business presenting it, not just the status.

The Altadena Builder Directory makes this easier by doing the legwork for you. Every listing in the registry — from ADU builders and custom home builders to remodelers, fire-rebuild specialists, and design-build firms — is license-verified against CSLB data, and a verification seal appears on every confirmed license match. The directory also offers a free CSLB license-lookup tool so you can independently verify any California contractor, with license data attributed to the California Contractors State License Board. Ratings come only from real, attributed public sources, and there are no paid rankings.

One listing appears as a labeled featured placement: JMB Builders LLC (CSLB #1103479). Featured placement is always clearly labeled as paid, so you know exactly what you're looking at — and like every listing, you can run the license number through the lookup tool yourself before you call.

When you verify, don't stop at "active." Screen for the red flags that matter most:

• Classification fit — a licensed specialty contractor using another classification's number to bid on work they're not qualified for can be prosecuted under BPC 7027.3.
• Entity match — corporate license numbers are issued to a specific corporate registration, and CSLB cross-checks with the Secretary of State, canceling licenses of dissolved entities.
• Status nuances — an inactive license carries none of the consumer protections of active status, including bonds and workers' compensation.
• Complaint disclosure — the official lookup surfaces complaint history alongside status, so read it before signing anything.

As DA Nathan J. Hochman puts it: "Always verify your contractor's license before hiring." A few minutes in the lookup tool — or a few clicks through a verified registry — is the cheapest insurance you'll ever buy on a construction project.