How to Check If a Contractor Is Licensed and Insured (Step-by-Step)
Verify a contractor's license and insurance in under 5 minutes. Step-by-step guide with state lookup links and red flags from a 20-year industry veteran.

You can verify a contractor's license and insurance in under five minutes using your state's contractor licensing board website. Most homeowners never do it. That one skip costs them thousands.
I watched a $60,000 roof-and-solar job implode because nobody checked. The original fascia estimate was $2,000. After tear-off, when the homeowner had zero leverage, the contractor tacked on $6,800 for fascia "replacement." She went out and counted the boards. 40-50% of them were only painted, not replaced. The project manager's hands were trembling when she confronted him.
That contractor was licensed. But his insurance had lapsed two months earlier. If a worker had fallen off that roof, the homeowner's personal homeowners insurance would have been the only backstop. On a $60,000 project.
Before you get any further into the hiring process, grab the free Contractor Defense Checklist. It has the full 6-step verification process in one page. But let me walk you through the license and insurance piece right now.
What Does It Mean for a Contractor to Be "Licensed"?
Licensing requirements vary by state, and honestly, it's a mess. Some states (California, Arizona, Nevada) require a license for almost any residential work over $500. Others (like parts of Texas) have limited statewide requirements and push it to the county or city level.
What a license tells you:
- They passed a competency exam (in most states)
- They registered with the state and paid a bond
- There's a complaint mechanism if things go wrong
- You have legal recourse that you don't have with an unlicensed operator
What a license does NOT tell you:
- Whether they're any good at their trade
- Whether their current insurance is active
- Whether they've had complaints resolved quietly
- Whether the person showing up is actually the license holder
That last one catches people. A licensed contractor can have employees or subcontractors working under their license. The person at your door with a business card might not be the license holder.
How to Verify a Contractor's License (5-Minute Process)
Here's exactly what to do. No shortcuts.
Step 1: Get the license number. Ask for it directly. "What's your contractor license number?" If they hesitate, get vague, or say it's "being renewed," stop. That's a red flag.
Step 2: Look it up on your state's licensing board. Every state has an online lookup. Type the license number. Confirm the name matches, the license type covers your project, and the status shows ACTIVE.
Step 3: Check the expiration date. Active doesn't mean current. Some databases show licenses as "active" even when expired. Look for the specific expiration date. If it's past, the license is expired regardless of what the status field says.
Step 4: Note the license classification. A general contractor license doesn't always cover specialty work (electrical, plumbing, HVAC). Verify the license class matches the work you need done.
How to Verify a Contractor's Insurance
This is the step people skip. Don't.
Contractors should carry two types of insurance:
| Insurance Type | What It Covers | Minimum You Should Accept | |---|---|---| | General Liability | Damage to your property during work | $1,000,000 per occurrence | | Workers' Compensation | Injuries to workers on your property | State minimum (varies) |
Step 1: Ask for a Certificate of Insurance (COI). Not a verbal confirmation. Not a photocopy of an old policy. A current Certificate of Insurance showing your project address.
Step 2: Call the insurance company directly. The phone number on the COI. Verify the policy is active and hasn't lapsed. This takes 3 minutes. I know that sounds excessive. It's not. I've seen COIs with policies that expired 60 days prior.
Step 3: Confirm you're listed as an "Additional Insured." This means if the contractor's work damages your property, you can file a claim directly against their policy. Without it, you're in a legal gray area.
A building permit costs $100-$400. Skipping it saves the contractor an inspection. Unpermitted work costs $5,000-$20,000 to remediate when you try to sell the house. That's a 50x penalty for a $400 permit. The contractor who told you "we don't need one for this job" just shifted $20,000 of risk onto your shoulders.
What We Tested: The Insurance Inflation Play
Here's the scam that blindsided me the first time I saw it.
Contractor says "I'll waive your deductible." Sounds generous. What's actually happening: they inflate the insurance claim to cover the waived amount. You're an unknowing participant in insurance fraud. If your insurer catches it, your policy gets cancelled. Not the claim. The entire policy.
I thought this was rare. It's not. After hailstorms, I'd estimate 1 in 4 roofing contractors running door-to-door pitches offer some version of the deductible waiver. The ones who do it never bring it up until after they've built rapport and shown you the "damage" they found during their free inspection.
Speaking of which. The Free Inspection Play: contractor offers a free roof inspection, climbs up, and always finds damage. Always. Because their commission depends on it. By the time they come down with a clipboard and a quote, you feel obligated. You can't verify if the damage is real because you never documented the roof before they got up there.
Get your own documentation first. Phone photos from the ground, attic shots looking for daylight through decking. That's your baseline.
Red Flags That a Contractor Isn't Properly Licensed or Insured
After 20 years, these are the tells:
- "I don't need a license for this type of work." Sometimes true. Often not. Verify with your city's building department, not with the contractor.
- Only accepts cash or won't put the company name on the check. Cash leaves no paper trail. That's the point.
- Out-of-state license only. Some storm chasers hold licenses in their home state and operate in yours without the required reciprocity or local license.
- Pressures you to start immediately. "If we don't start today, I can't hold this price." Licensed, insured contractors with a solid pipeline don't need to pressure you. They have a backlog.
- No physical address. A P.O. box or just a phone number means you have no recourse location if they disappear.
The Mistake Most Homeowners Make
I thought a reasonable deposit was whatever the contractor asked for. That's wrong. 10-30% is normal. 33% on larger jobs. Anything above 50% is a structural risk to you. High deposit means if they delay or disappear, you're holding an empty bag.
Tie payments to milestones, not dates. Materials delivered? Pay the materials milestone. Tear-off complete? Pay the tear-off milestone. Don't pay for work that hasn't happened yet.
I cover this in detail in the free Contractor Defense Checklist. It includes the full 6-step background check system, including court records and permit history lookup, plus the milestone payment structure that keeps your money protected at every stage.
Frequently Asked Questions
Do all contractors need to be licensed? Requirements vary by state, project type, and dollar amount. In most states, any work over $500-$1,000 requires a licensed contractor. Handyman work under the threshold sometimes doesn't. Check your state's licensing board for the exact cutoff. When in doubt, hire licensed.
What happens if I hire an unlicensed contractor and something goes wrong? You lose most legal protections. No licensing board complaint mechanism. No bond to file against. Your homeowner's insurance may deny coverage for damage caused by unlicensed work. In some states, the unlicensed contractor can't even enforce the contract to collect payment from you.
How often should I re-verify a contractor's insurance? Verify at the start of the project. If the project runs longer than 90 days, verify again. Policies can lapse mid-project, especially with smaller operators. One phone call to the insurer takes 3 minutes.
Can a contractor work under someone else's license? Yes, employees and supervised subcontractors can work under the license holder's umbrella. But the license holder is legally responsible for the work quality. Ask who the license holder is and confirm they're aware of and overseeing your project.
Is a bond the same as insurance? No. A bond protects you if the contractor fails to meet contractual obligations or pulls permits and abandons the job. Insurance covers property damage and worker injuries. You want both.
I post contractor red flags and verification tips on X. Follow me at @beforeyouhire23 for quick checks you can run before any hire.
Don't start the hiring process without the full background check system. The Contractor Defense Checklist walks you through all 6 verification steps, from license lookup to court records, in one printable page. Download it free here.
Mike Harmon