Washington · Cost guide
Cost Guide: Plumbers in Washington
What shapes the price, what to check, and who locals recommend.
- Updated
- Roto-Rooter Plumbing & Water Cleanup
★ 4.8 · 436 reviews
- Roto-Rooter Plumbing & Water Cleanup
★ 4.9 · 218 reviews
- Thomas E Clark
★ 4.8 · 118 reviews
Before you sign
Four things to check with any business
- Check the license with your state's licensing board.
- Get three itemised quotes so you compare like with like.
- Confirm who pulls the permit: it should be in the business's name.
- Tie payments to stages and get the warranty in writing.
For a fair price, compare three itemised quotes for the same job. Ask the favorites for a quote
Who to call
Washington's favorite plumbers
- FavoriteRoto-Rooter Plumbing & Water Cleanup
★ 4.8 · 436 reviews
- FavoriteRoto-Rooter Plumbing & Water Cleanup
★ 4.9 · 218 reviews
- FavoriteThomas E Clark
★ 4.8 · 118 reviews
- Overall FavoriteRoto-rooter Plumbing & Water Cleanup
★ 4.8 · 1538 reviews
- Customer FavoriteLen The Plumber Heating & Air, LLC
★ 4.7 · 3218 reviews
Local facts
Washington, by the numbers
Official figures that shape what the job costs here.
11,348
People per square mile
Calculated from U.S. Census Bureau 2025 estimates and Gazetteer land area · 2025
61.1 sq mi
Land area
693,645
Washington residents
U.S. Census Bureau, Vintage 2025 population estimates (sub-est2025) · July 1, 2025
+0.6%
Population change since 2020 (from 689,544 (April 2020 base))
U.S. Census Bureau, Vintage 2025 population estimates (sub-est2025) · 2020–2025
Questions
Cost questions answered
How is the top 5 ranking of plumbers in Washington calculated?
Each business gets a score from its rating, review volume, recent reviews, years in business, profile completeness and record checks. The highest scores make the list. We compared 15 plumbers for Washington.
Which of these plumbers in Washington has the best reviews?
Roto-Rooter Plumbing & Water Cleanup has a 4.9 rating from 218 public reviews, the highest on this page.
Which of these plumbers has the most reviews?
Len The Plumber Heating & Air, LLC, with 3218 public reviews. A long review history shows how a business handles many jobs.
Are these plumbers licensed?
5 of the 5 businesses here had their state license checked against public records. Each profile shows the source and the date of the check.
How many quotes should I get for plumbers in Washington?
Get at least three. Use the quote form on this page: only the businesses you tick receive your request.