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General contractors in Mercer Island, WA

29 general contractors listed in Mercer Island, Washington. 26 with a phone number and 23 with a website.

Mercer Island accounts for 0.5% of the general contractors listed in Washington.

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Quick answer

Mercer Island, WA has 29 general contractors listed on USA Business Search. 26 list a phone number and 23 list a website. The most listings are in ZIP codes 98040.

Updated November 2026
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How to choose a contractor in Mercer Island

  • Get two or three written bids with the same scope.
  • Ask for proof of liability insurance and workers' comp.
  • Tie payments to finished stages of the work, never all up front.

Check the business: confirm a company's registration with the state in our Washington business lookup guide, and licensed trades in the contractor license lookup guide.

Common questions

How many general contractors are listed in Mercer Island, Washington?

USA Business Search shows 29 general contractors in Mercer Island. 26 list a phone number and 23 list a website.

Which ZIP codes do these listings cover?

They include ZIP codes 98040.

How do I choose a contractor in Mercer Island?

Get two or three written bids with the same scope. Ask for proof of liability insurance and workers' comp. Tie payments to finished stages of the work, never all up front. Check the license or registration through the Washington business lookup guide.

How do I add or fix a listing?

Listings are free. Use Add your business, or the Claim or fix link on any listing.

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