Bath Contractor CheckLook up a bathroom contractor's license before you sign anything

Top-rated bathroom contractors near Mercer Island, WA

Mercer Island ranks 10 bathroom contractors by Google rating below, since there's no license record here to search by name. 22.2% of Mercer Island residents are 65 or older, one more reason a license check matters before any work starts. This entire site exists to tell you a rating isn't a license, so don't skip that step just because a name shows up here.

Google Maps ratings checked · How we rank

Mercer Island bathroom contractors, ranked by Google rating, not searchable by license

The order below gives review volume nearly as much weight as the star count, since there's no license file here to search; treat it as a starting point, never as proof of a license or registration, and run the name yourself before you sign anything.

  1. Old World HandymanBathroom remodeler · 5.0 out of 5 on Google · 63 Google reviews · Mercer Island 98040Google reviews
  2. DR ConstructionGeneral contractor · 5.0 out of 5 on Google · 43 Google reviews · Not listedGoogle reviews
  3. Baklinski Home ImprovementBathroom remodeler · 4.9 out of 5 on Google · 70 Google reviews · Mercer Island 98040Google reviews
  4. Mercer Island RemodelingRemodeler · 5.0 out of 5 on Google · 21 Google reviews · Mercer Island 98040Google reviews
  5. Intercrus DecksBathroom remodeler · 5.0 out of 5 on Google · 17 Google reviews · Mercer Island 98040Google reviews
  6. Bayside Home Improvement WABathroom remodeler · 5.0 out of 5 on Google · 15 Google reviews · Mercer Island 98040Google reviews
  7. Renewal Remodels & Additions - Mercer Island and Bellevue RemodelerBathroom remodeler · 5.0 out of 5 on Google · 15 Google reviews · Mercer Island 98040Google reviews
  8. Kitchen remodeler in Mercer Island, WA | New Era ConstructionKitchen remodeler · 5.0 out of 5 on Google · 12 Google reviews · Not listedGoogle reviews
  9. Gallagher Co.Custom home builder · 5.0 out of 5 on Google · 11 Google reviews · Mercer Island 98040Google reviews
  10. Greater Spaces RemodelGeneral contractor · 4.8 out of 5 on Google · 6 Google reviews · Mercer Island 98040Google reviews

How to check a license in Washington

  1. Open L&I's Verify a Contractor, Tradesperson or Business tool.[1]
  2. Enter a name, a license number, a workers' comp account number, or the business's own UBI number to run the search.[1]
  3. Confirm the registration is active, that the contractor is bonded and insured, and that they keep a safe job site or have corrected past violations.[2]
  4. If the contractor will have employees on your job site, confirm they hold an active workers' comp account too.[3]

Washington L&I's contractor and tradesperson lookup

Warning signs

  • Credentials or references that cannot be verified.[3]
  • A special price that is only good if you sign today.[3]
  • Cash-only payment or a request for a large deposit upfront.[3]
  • No written contract, or a bid that is not complete.[3]
  • Asking you, the homeowner, to pull the building permit yourself.[3]
  • An exceptionally long warranty offer, or a contractor who will only work evenings and weekends.[3]

Rules that protect you

  • Bond of 30,000 dollars for a general contractor or 15,000 dollars for a specialty contractor.[4]
  • Liability insurance of 200,000 dollars public liability and 50,000 dollars property damage, or a 250,000-dollar combined single limit.[4]
  • No statutory deposit cap; pay in phases as work completes and avoid paying in full before the job is done.[3]
  • A Notice to Customer disclosure statement is required on jobs of 1,000 dollars or more at a home of four units or fewer.[5]

Before you search, know what to look for

  1. Does the license status say active, not expired, suspended or revoked?
  2. Does the business name and license number match exactly what is on the bid or contract?
  3. Is there any disciplinary history attached to the license, and if so, what was it for?
  4. Does the license class actually cover bathroom work, or is it a different trade entirely?
  5. Is the bond or insurance information on the record current?
  6. Does the address on file match a real, current place of business?

More on Washington →

1ZIP code with listings

ZIP breakdown for Mercer Island

Across Mercer Island's 1 covered ZIP codes, 98040 carries the largest concentration at 8 listed contractors.

Search results for Mercer Island are not filtered by ZIP, so a name search will find a contractor from any of them.

Data: Google Maps listings, checked 2026-10-01.

More Washington license lookups

All cities in Washington →

Sources

  1. Verify a Contractor, Tradesperson or Business, Washington State Department of Labor & Industries, accessed 2026-09-30
  2. Hiring a Contractor, Washington State Department of Labor & Industries, accessed 2026-09-30
  3. Hire Smart Step-by-Step, Washington State Department of Labor & Industries, accessed 2026-09-30
  4. Register as a Contractor, Washington State Department of Labor & Industries, accessed 2026-09-30
  5. RCW 18.27.114: Disclosure statement required, Washington State Legislature, accessed 2026-09-30