Plumbing contractors in Black Diamond, WA
Plumbing contractors install and repair the water supply, drain, waste, and vent systems that carry water through a building. Washington currently lists 9 Plumbing contractors registered in Black Diamond.
Claimed and verified listings appear first.
Dci Plumbing INC
ListedResidential · Black Diamond, WA
License #DCIPLPI799NU · $6,000 bond
Diamond Plumbing INC
ListedJourney Level · Black Diamond, WA
License #DIAMOPI795NQ · $6,000 bond
Miles Plumbing LLC
ListedJourney Level · Black Diamond, WA
License #MILESPL7523B · $6,000 bond
Plumb Fit INC
ListedResidential · Black Diamond, WA
License #PLUMBFI796OA · $6,000 bond
Redline Mechanical
ListedJourney Level · Black Diamond, WA
License #REDLIM*790MK · $6,000 bond
Waxman Family Plumbing
ListedJourney Level · Black Diamond, WA
License #WAXMAFP749OH · $6,000 bond
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Built from Washington State L&I public records, updated Nov 10, 2026. Subser doesn't do star ratings or reviews — just verified records.