Best Licensed Plumbers in Walla Walla, WA

21 plumbers companies registered in Walla Walla 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.Young's Heating & Cooling LLC

   ✓ L&I License #YOUNGHC753DO — verify at state registryInsured — Ohio Cas Ins CoBonded — $30,000

   Verified

   August 12, 2026

   Phone

   +15095254328

2. 2.Ed's Plumbing LLC

   ✓ L&I License #EDSPLPL791NR — verify at state registryInsured — Country Mutual Ins CoBonded — $15,000

   Verified

   August 12, 2026

   Phone

   +15417770075

3. 3.365 Plumbing & Drain

   ✓ L&I License #365PLPD762QK — verify at state registryInsured — State Farm Fire & Cas CoBonded — $6,000

   Verified

   August 12, 2026

   Phone

   +15093014310

4. 4.A-1 Plumbng & Emergency Rooter

   ✓ L&I License #1PLUMPE791MW — verify at state registryInsured — American Casualty Insurance CoBonded — $6,000

   Verified

   August 12, 2026

   Phone

   +15095256688

5. 5.Alden Plumbing LLC

   ✓ L&I License #ALDENPL791MT — verify at state registryInsured — Cincinnati Casualty CompanyBonded — $6,000

   Verified

   August 12, 2026

   Phone

   +15093865704

6. 6.Armstrong Plmbng & Mechanical

   ✓ L&I License #ARMSTPM754KW — verify at state registryInsured — AMGUARD INSURANCE COMPANYBonded — $6,000

   Verified

   August 12, 2026

   Phone

   +15093862519

7. 7.B & W Plumbing LLC

   ✓ L&I License #BWPLUWP743LD — verify at state registryInsured — NATIONWIDE GENERAL INSURANCE CBonded — $6,000

   Verified

   August 12, 2026

   Phone

   +15099278519

8. 8.Big Horn Plumbing

   ✓ L&I License #BIGHOHP757QO — verify at state registryInsured — Cincinnati Indemnity CompanyBonded — $6,000

   Verified

   August 12, 2026

   Phone

   +15095292679