Proof of real work, with the source and date.

For businesses

Plumbers in Washington: the 5 with the most proof of work

Ranked by what the records show, not by what the businesses say: permits pulled, reviews coming in over time, and public record checks.

  • 15on file
  • 6,437public reviews counted
  • 15with records matched

Top 3 plumbers in Washington

Order follows a published score: records and permits 30%, review volume 25%, recent reviews 20%, complete profile 15%, years 5%, rating 5%.

  1. 1. Roto-Rooter Plumbing & Water Cleanup

    Bethesda · 4.8 average rating

    Evidence436 reviews1 record matched

  2. 2. Roto-Rooter Plumbing & Water Cleanup

    McLean · 4.9 average rating

    Evidence218 reviews1 record matched

  3. 3. Thomas E Clark

    Silver Spring · 4.8 average rating

    Evidence118 reviews1 record matched

More plumbers in Washington

  1. 4. Roto-rooter Plumbing & Water Cleanup

    Washington · 4.8 average rating

    Evidence1,538 reviews1 record matched

  2. 5. Len The Plumber Heating & Air, LLC

    Silver Spring · 4.7 average rating

    Evidence3,218 reviews1 record matched

Also on file in Washington

10 more plumbers, by name. No permit records matched for these yet. Less on record usually means less has been published, not a problem with the business.

Other plumbers in Washington, data as of November 4, 2026
BusinessReviewsRecords matched
Aqua Plus PlumbingTemple Hills 178 1
Catons Plumbing, Drains & Water CleanupSilver Spring 38 1
Durance PlumbingTakoma Park 38 1
John C. FloodBrentwood 67 1
John Nugent & SonsMcLean 323 1
Master Plumbing & Mechanical IncSilver Spring 18 1
Plumber In DCWashington 28 1
Spartan Plumbing, Heating And Air ConditioningWashington 148 1
Tim Whistler Plumbing, Gas Fitting, HVAC, and ElectricalSilver Spring 53 1
TwinTech LLCMcLean 18 1

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Public record · Washington

What the public record says about Washington

Land area
61.1 sq mi
U.S. Census Bureau, 2025 Gazetteer files · 2025
Population change since 2020
+0.6% from 689,544 (April 2020 base)
U.S. Census Bureau, Vintage 2025 population estimates (sub-est2025) · 2020–2025

Questions

Questions about plumbers in Washington

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.

More in Washington