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— Licensed · State-verified · Re-checked weekly

Find a licensed plumber in Washington

Every plumber here holds an active state license, re-verified against the board each week. Tell us what is going on. Get matched with licensed pros before a small leak becomes a flood. Free for homeowners.

Washington Labor & Industries (L&I) · Official state records
Get matched with verified plumbers in Washington — free →
See where plumbers are licensed across Washington →

Why verification matters

Unlicensed plumbing is a leading cause of hidden water damage and failed inspections. A licensed plumber is bonded, insured, and works to code - so a repair does not become a mold claim.

Common plumbers jobs

Leak and burst-pipe repairWater heater replacementDrain cleaning and clogsRemodel and rough-in plumbingFixture and faucet installation

For businesses

Buy the plumbers list in Washington, by territory

Every active plumber license in Washington, verified against the state board and enriched with phone, email, and website. Draw your territory and pay for what you draw.

SeattleSpokaneVancouverPuyallupOlympiaMarysvilleKennewickYakimaSequimMount VernonMoses LakeMaple ValleyCashmereCle ElumPort AngelesMansonCheneyFerndaleKalamaAberdeenColvilleWhite SalmonFriday HarborNewport
Tap the map to set your territory center.Two fingers to move & zoom

Radius

Statewide

Why ContractorRoster

The state board's job ends at the license. Ours starts there.

When you need a licensed plumber in a market you don't know, you end up with a dozen browser tabs open to state websites and no phone numbers to show for it — typically 2 to 4 hours of work. ContractorRoster delivers the complete list in minutes: every active license in your area, enriched with phone, email, and website for over 95% of records.

Washington: Washington's L&I licenses and bonds all contractors through a unified registration system, making it one of the easier states for buyers to verify contractor credentials before hiring.

Use cases

  • ✓Sourcing licensed plumbing subs for a project in an unfamiliar market
  • ✓Pulling a complete licensed-only call sheet for a manufacturer launch
  • ✓Backfilling vendor coverage when your usual plumber can't take the job
  • ✓Quoting bidders for a multi-property rehab across several cities

Top cities for plumbers in Washington

1Spokane33
2Seattle30
3Vancouver15
4Lynnwood14
5Olympia11
6Tacoma11
7Marysville9
8Bremerton9
9Battle Ground9
10Renton9

539 active plumbers licensed across Washington, with phone, email, and website on most records. See the full Washington map →

Guides

7 min read
How to Verify a Washington Contractor's License (and Read the Most Thorough Portal in the Country)
Washington L&I surfaces bond, insurance, workers' comp, and open liabilities in a single search — the most consumer-friendly verification portal of any state, if you know to read past "Active."

Other trades in Washington

Plumbers in other states

“I needed every licensed plumber in three counties by Wednesday for a vendor outreach campaign. The CSV hit my inbox in under 4 minutes. Used it the same afternoon.”

Daniel R.

Operations Director, building services firm, Washington

Common questions about plumbers in Washington

How do I find a licensed plumber in Washington?

Describe your job on ContractorRoster and we match you with plumbers verified against the Washington Labor & Industries (L&I) — license status re-checked weekly, not just a star rating. It's free for homeowners, and matched pros reach out to you directly.

How do I check if a Washington plumber is licensed?

Every plumber we list carries their active license number, which you can confirm directly with the Washington Labor & Industries (L&I). We re-check the board weekly, so you see current license status rather than a badge that could be out of date.

How many licensed plumbers are in Washington?

539 plumbers hold an active license in Washington, verified against the Washington Labor & Industries (L&I). ContractorRoster delivers the full list with phone, email, and website.

Where does the Washington plumber data come from?

Every record is sourced directly from the Washington Labor & Industries (L&I) — the official Washington licensing board — then enriched with phone, email, website, and Google ratings from public business sources.

What's included for each plumber?

Business name, license number and status, issue and expiration dates, and full address — plus phone, email, website, and Google rating where publicly available. About 9 in 10 records include a phone number.

How much does a list of Washington plumbers cost?

Pricing follows the size of the territory you draw, starting at $19 for a small area. You pay once and the CSV arrives by email within minutes — no subscription and no account required.

Is the Washington plumber list current?

Yes. The data is refreshed from the Washington Labor & Industries (L&I) on a recurring basis, last updated 2026-07-07, so you reach plumbers whose licenses are active right now.

From $19. Pay for what you draw

Draw your territory on the map; the price follows the size of the list. Pay once. CSV in your inbox shortly. No subscription, no account.

✓ Name, license #, expiration, verification URL✓ Phone, email, website (most records)✓ Google rating + review count, Yelp link✓ Territory intel: population, income, permits, storms✓ CSV ready for Excel or Google Sheets