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Interior design in Mercer Island, WA

9 interior design listed in Mercer Island, Washington. 8 with a phone number and 8 with a website.

Mercer Island accounts for 1.2% of the interior design listed in Washington.

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Quick answer

Mercer Island, WA has 9 interior design listed on USA Business Search. 8 list a phone number and 8 list a website. The most listings are in ZIP codes 98040.

Updated November 2026

Colleen Knowles Interior Design Llc

9311 Se 36th St Ste 103, Mercer Island, WA 98040 · Claim or fix

How to choose an interior designer in Mercer Island

  • Get two or three written quotes that list materials, labor and cleanup.
  • Ask for proof of liability insurance and, for bigger jobs, workers' comp.
  • Never pay the full price up front. Tie payments to finished stages of the work.

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 interior design are listed in Mercer Island, Washington?

USA Business Search shows 9 interior design in Mercer Island. 8 list a phone number and 8 list a website.

Which ZIP codes do these listings cover?

They include ZIP codes 98040.

How do I choose an interior designer in Mercer Island?

Get two or three written quotes that list materials, labor and cleanup. Ask for proof of liability insurance and, for bigger jobs, workers' comp. Never pay the full price up front. Tie payments to finished stages of the work. 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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