Best Licensed Plumbers in Mountlake Terrace, WA

12 plumbers companies registered in Mountlake Terrace 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.After Hours Plumbing Luke LLC

   ✓ L&I License #AFTERHP750DE — verify at state registryInsured — Clear Blue Specialty InsuranceBonded — $15,000

   Verified

   August 12, 2026

   Phone

   +14253413718

2. 2.Marlin Plumbing LLC

   ✓ L&I License #MARLIPL750QF — verify at state registryInsured — Country Mutual Ins CoBonded — $15,000

   Verified

   August 12, 2026

   Phone

   +13606309141

3. 3.Always Testing Inc.

   ✓ L&I License #ALWAYTI782L7 — verify at state registryInsured — Midvale Indemnity CompBonded — $6,000

   Verified

   August 12, 2026

   Phone

   +12067188378

4. 4.Bath Fitter

   ✓ L&I License #BATHFF*771K5 — verify at state registryInsured — WESTERN NATIONAL MUTUAL INS COBonded — $6,000

   Verified

   August 12, 2026

   Phone

   +12538726898

5. 5.Fischer Plumbing Co Inc., The

   ✓ L&I License #FISCHPC792OS — verify at state registryInsured — WESTERN NATIONAL MUTUAL INS COBonded — $6,000

   Verified

   August 12, 2026

   Phone

   +12067834129

6. 6.Fischer Services

   ✓ L&I License #FISCHS*741DW — verify at state registryInsured — Starr Indemnity & Liability InBonded — $6,000

   Verified

   August 12, 2026

   Phone

   +12062793077

7. 7.Hp Plumbing & Heating Inc.

   ✓ L&I License #HPPLUPH792N5 — verify at state registryInsured — Liberty Mutual Ins CoBonded — $6,000

   Verified

   August 12, 2026

   Phone

   +12065505575

8. 8.Jim Dandy Enterprise Inc.

   ✓ L&I License #JIMDADE791MG — verify at state registryInsured — Union Insurance CompanyBonded — $6,000

   Verified

   August 12, 2026

   Phone

   +12066331141