Water Conditioning Equipment contractors in Washington

55 contractors · Updated Sep 27, 2026

Water conditioning contractors install and service water softeners, filters, and other treatment equipment. Washington currently lists 55 Water Conditioning Equipment contractors registered statewide.

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Claimed and verified listings appear first.

Absolute Water Treatment LLC

Listed

Water Conditioning Equipment · Lacey, WA

License #ABSOLWT901B5 · $15,000 bond

Aquacare Environment INC

Listed

Water Conditioning Equipment · Bellingham, WA

License #AQUACEI914JB · $15,000 bond

Ch2o INC

Listed

Water Conditioning Equipment · Tumwater, WA

License #CH2OII*918ML · $15,000 bond

Chem-Rite INC

Listed

Water Conditioning Equipment · Spokane, WA

License #CHEMRI*762OZ · $15,000 bond

Clean Water Specialists INC

Listed

Water Conditioning Equipment · Pasco, WA

License #CLEANWS024P3 · $15,000 bond

Clearwater Services INC

Listed

Water Conditioning Equipment · Akron, OH

License #CLEARSI807OA · $6,000 bond

Columbia Technical - Water LLC

Listed

Water Conditioning Equipment · Woodland, WA

License #COLUMTW816O4 · $6,000 bond

Culligan

Listed

Water Conditioning Equipment · Kennewick, WA

License #CULLI**077RA · $15,000 bond

Custom Water Solutions INC

Listed

Water Conditioning Equipment · Chehalis, WA

License #CUSTOWS016KM · $15,000 bond

Flint Services

Listed

Water Conditioning Equipment · Rathdrum, ID

License #FLINTS*866JA · $6,000 bond

Hoffman Quality Water LLC

Listed

Water Conditioning Equipment · Walla Walla, WA

License #HOFFMQW788OZ · $15,000 bond

Meadow Lake Water Treatmnt LLC

Listed

Water Conditioning Equipment · Stanwood, WA

License #MEADOLW810L5 · $15,000 bond

Northwest Water Treatment INC

Listed

Water Conditioning Equipment · Lacey, WA

License #NORTHWT994OK · $15,000 bond

Ovivo USA LLC

Listed

Water Conditioning Equipment · Salt Lake City, UT

License #OVIVOUL887PU · $15,000 bond

Pacific Coast Carbon LLC

Listed

Water Conditioning Equipment · Ridgefield, WA

License #PACIFCC834RM · $15,000 bond

Rainbow Water Company

Listed

Water Conditioning Equipment · Rochester, WA

License #RAINBWC742MH · $15,000 bond

Tri-Pure Water Resources INC

Listed

Water Conditioning Equipment · Spokane, WA

License #TRIPUWR923J8 · $15,000 bond

United Water INC

Listed

Water Conditioning Equipment · Vancouver, WA

License #UNITEWI790JO · $6,000 bond

United Water Services INC

Listed

Water Conditioning Equipment · Vancouver, WA

License #UNITEWS788P8 · $15,000 bond

WM H Reilly & CO INC

Listed

Water Conditioning Equipment · Portland, OR

License #WMHREHR834OQ · $15,000 bond

Washington Pure Water Products

Listed

Water Conditioning Equipment · Centralia, WA

License #WASHIPW803QF · $15,000 bond

Water & Air Works

Listed

Water Conditioning Equipment · Vancouver, WA

License #WATERAW870KW · $15,000 bond

Cities with Water Conditioning Equipment contractors

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Built from Washington State L&I public records, updated Sep 27, 2026. Subser doesn't do star ratings or reviews — just verified records.