Where to verify a contractor's license
A contractor's license is issued and tracked by your state, not your city or county. Most states maintain a public database you can search online for free, usually through the state's licensing board or department of consumer affairs. The database lets you confirm the license is current, check what type of work the contractor is permitted to do, and see whether complaints or disciplinary actions are on file.
The exact name of the agency varies by state — it might be called the Contractors State License Board, the Department of Professional Regulation, or the Division of Licensing. A search for "[your state] contractor license lookup" will take you to the right place. Some states also let you call the licensing board directly if you prefer to verify by phone.
Key Takeaways
- Every state maintains a searchable database of active contractor licenses; find yours by searching "[your state] contractor license lookup" in a web browser.
- The database shows whether a license is current, what type of work the contractor is licensed for, and any complaints or disciplinary history.
- A contractor working without a license or outside the scope of their license is breaking the law and leaves you without legal recourse if the work fails.
- Before you hire, write down the contractor's license number and verify it yourself rather than relying on what they tell you.
What information the database shows you
When you search a contractor's name or license number, the state database returns several pieces of information. You will see the license type — for example, general contractor, electrician, plumber, or HVAC specialist — which tells you what work they are legally permitted to perform. You will also see the license status (active, inactive, expired, or suspended) and the expiration date.
Most databases also display any complaints filed against the contractor, investigations the state has opened, and disciplinary actions taken. This history is public record. A contractor with multiple complaints or a history of violations is a warning sign, though a single old complaint does not necessarily disqualify someone. Pay attention to the nature of the complaints — repeated failures to get permits, for example, or unfinished jobs — rather than just the number.
How to search the database
Go to your state's licensing board website and look for a link labeled "License Lookup," "Verify a License," or "Search Licenses." You will typically be able to search by the contractor's name, their license number, or sometimes their business name. If you have their license number, use that — it is the fastest and most accurate way to find them.
Enter the information and run the search. The results will show you the contractor's record. If nothing comes up, the license does not exist or is not active in that state. If the contractor claims to be licensed but does not appear in the database, that is a red flag. Some contractors work under a business license rather than a personal license, so if you cannot find them by name, ask for their license number and search that instead.
Red flags when checking a license
An expired license means the contractor is not currently permitted to work. Some contractors let their licenses lapse and continue working anyway — this is illegal and leaves you without protection. If the license shows as suspended or revoked, the contractor has been disciplined by the state and should not be hired for that type of work.
Another red flag is a license that does not match the work you need done. If you need electrical work and the contractor holds only a general contractor license, they cannot legally do the job themselves — they would have to hire a licensed electrician, which adds cost and complexity. A contractor who tells you they can do work outside their license type is cutting corners.
Multiple complaints about the same issue — unpermitted work, failure to complete jobs, or not pulling required permits — suggest a pattern. A single complaint from years ago is less concerning than three complaints in the last two years. Read the complaint descriptions if the database provides them.
What to do if you cannot find a license
If a contractor claims to be licensed but does not appear in your state's database, ask them directly for their license number and the state where they are licensed. Some contractors are licensed in one state and work in another, which is sometimes legal but requires verification. Search the other state's database if they give you a different state.
If they cannot or will not provide a license number, or if you search and find nothing, do not hire them. A licensed contractor will have no problem giving you their license number and will expect you to verify it. If they seem evasive or annoyed by the request, that is a sign to look elsewhere.
Why checking matters before you hire
A licensed contractor has met training requirements, passed an exam, and carries insurance. If something goes wrong — the work is faulty, the job is abandoned, or they damage your property — you have legal recourse through the state licensing board. You can file a complaint, and the board can investigate and take action, including ordering the contractor to fix the work or refund your money.
An unlicensed contractor offers no such protection. If they do poor work or disappear mid-project, you have limited options. You can sue them, but that is expensive and time-consuming. The state cannot discipline them because they were never licensed. Hiring unlicensed work also exposes you to liability — if someone is injured on your property during unlicensed work, your homeowner's insurance may not cover it.
Frequently Asked Questions
Can a contractor work without a license?
It depends on the type of work and your state. Some states allow unlicensed contractors to do minor repairs or work under a certain dollar amount. However, most states require a license for any structural work, electrical work, plumbing, or HVAC. Check your state's rules, but in general, a licensed contractor is always safer than an unlicensed one.
What if the contractor's license is expired but they say they are renewing it?
Do not hire them until the license is active again. An expired license means they are not currently permitted to work. If they are in the middle of renewing, they can wait until it is approved. Hiring someone to work on an expired license puts you at legal and financial risk.
Does a contractor need a license for small jobs?
Most states exempt very small jobs — often under $500 or $1,000 — from licensing requirements. However, the rules vary widely. If you are unsure whether your job requires a licensed contractor, call your state's licensing board and ask. It is a quick call and worth the peace of mind.
Can I hire a contractor from another state?
Some states allow out-of-state contractors to work temporarily, but they usually need to register or get a temporary license first. Ask the contractor whether they are licensed in your state. If they are not, ask what steps they have taken to work legally there. If they have not taken any, they are working illegally.
What should I do if I find complaints against a contractor?
Read the details of the complaints to understand what went wrong. One old complaint may not be a dealbreaker, but a pattern of similar issues is a warning. You can also call the licensing board and ask what the complaints were about. Some boards will discuss the nature of complaints over the phone, though they may not share all details.