Best Licensed Plumbers in Olympia, WA

34 plumbers companies registered in Olympia hold current L&I licenses, verified against official records as of August 12, 2026. The 8 companies below passed every verification check, ranked by insurance status and bond amount.

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1. 1.Harbor Plumbing

   ✓ L&I License #HARBOP*786NP — verify at state registryInsured — Ohio Security Ins CoBonded — $30,000

   Verified

   August 12, 2026

   Phone

   +13602801614

2. 2.Blue Mountain Mech, LLC

   ✓ L&I License #BLUEMMM754RE — verify at state registryInsured — Ohio Security Ins CoBonded — $15,000

   Verified

   August 12, 2026

   Phone

   +13604594498

3. 3.A+ Services

   ✓ L&I License #ASERV**771C2 — verify at state registryInsured — Country Mutual Ins CoBonded — $6,000

   Verified

   August 12, 2026

   Phone

   +13604912900

4. 4.American Plumbing Contrs Inc.

   ✓ L&I License #AMERIPC779QA — verify at state registryInsured — Western National Assur CoBonded — $6,000

   Verified

   August 12, 2026

   Phone

   +13604380611

5. 5.B P Plumbing & Mechanical

   ✓ L&I License #BPPLUPP790OA — verify at state registryInsured — Nationwide Mutual Ins CoBonded — $6,000

   Verified

   August 12, 2026

   Phone

   +13608788786

6. 6.Barbo's Plumbing LLC

   ✓ L&I License #BARBOPL795MP — verify at state registryInsured — AMGUARD INSURANCE COMPANYBonded — $6,000

   Verified

   August 12, 2026

   Phone

   +13605849290

7. 7.Bathroom Llc, The

   ✓ L&I License #BATHRL*797MP — verify at state registryInsured — Richmond National Insurance CoBonded — $6,000

   Verified

   August 12, 2026

   Phone

   +13608664041

8. 8.Black Hills Inc.

   ✓ L&I License #BLACKHI763D8 — verify at state registryInsured — SAFETY NATIONAL CASUALTY CORPOBonded — $6,000

   Verified

   August 12, 2026

   Phone

   +13607058590