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Homeowner guide · Remodeling

How to check a contractor's license

To check a contractor's license, ask for the license number and look it up on your state or city licensing board's website, confirming the name, license type and status match. Then ask for a certificate of insurance and confirm it's current. Licensing rules vary by state and trade, so some trades won't need a license where you live.

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Quick answer

Start here

  • 1

    License number from the contractor

  • 2

    Lookup on the state or city site

  • 3

    Name and license type match

  • 4

    Current certificate of insurance

Plain-English, no jargon

What to look for

  • A license number you can look up yourself
  • A business name that matches the license
  • A license type that covers your job
  • A current certificate of insurance
  • No disciplinary actions or complaints you can't explain

Questions to ask before you hire

  • What's your license number, and which agency issued it?
  • Does your license cover this type of work?
  • Can you send a current certificate of insurance?
  • Do you carry workers' compensation for your crew?
  • Will subcontractors on my job be licensed and insured too?

Getting and comparing quotes

Ask every contractor for the same documents before you compare prices. A lower bid from someone who can't show a license or insurance can cost far more if something goes wrong.

Red flags

  • Won't share a license number
  • License name doesn't match the business
  • Insurance certificate is expired
  • Says a license isn't needed for work your state licenses

FAQ

Common questions

Where do I look up a contractor's license?

On your state's licensing board or your city or county's website. Search for your state's contractor license lookup.

Does every contractor need a license?

No. It depends on the state and the trade. Electricians, plumbers and HVAC techs are licensed in most places.

How do I verify a contractor's insurance?

Ask for a certificate of insurance and call the insurer listed to confirm it's active.

Remodeling

Common remodeling jobs

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How to Check a Contractor's License and Insurance