Northwest (Puget Sound & islands)
Aquatech Well Drilling & Pumps
Sedro-Woolley well driller and pump company drilling domestic and irrigation wells and installing pumps, storage and water treatment across Skagit, Island, Snohomish, San Juan, Whatcom and north King counties.
JKA Well Drilling & Pumps
Family-run Monroe well driller and pump company, founded in 1989, drilling, rehabilitating, inspecting and decommissioning wells and installing pumps, tanks and water treatment for homes in King and Snohomish counties.
Meadow Lake Water Treatment
Family-owned Stanwood water treatment company serving Snohomish, Skagit and Island counties with well water filtration, iron filters, water softeners, drinking water systems and free water testing.
RH Drilling & Services
Water well driller formed in 2010, drilling 5- to 25-inch cable tool and air-rotary wells, deepening and cleaning out wells, and installing pumps and filtration, mainly in Island, Clallam, Pierce and King counties.
Specialty Pump & Well
Snohomish well pump company serving Snohomish County, east King County, Camano and Whidbey islands since 1979, with same-day pump repair, pump installation, pressure and storage tanks, well inspections and water treatment.
Southwest & Olympic Peninsula
American Pump and Drilling
Olympia water system company, registered as Tacoma Pump & Drilling, offering residential and commercial well drilling, pump installation and repair, water treatment, real estate water inspections and well decommissioning.
Blue Line Water
Puyallup water treatment and well pump company, established in 2001, serving Pierce, King, Kitsap and Thurston counties with pump systems, well water treatment, inspections and flow tests.
Integrity Pumps & Filtration
Family-owned Sequim pump and filtration company with a store on Business Park Loop, installing and servicing well pumps, pressure tanks, holding tanks and water treatment, with 24-hour emergency pump service.
Mather & Sons Pump Service
Vancouver pump sales and service company, family-owned since 1955, installing and repairing well pumps, pressure tanks and water treatment for homes in southern Washington and the Portland area, plus well testing and sand bailing.
Northwest Water Treatment
Family-owned well water treatment company, founded in 1996, designing and installing softeners, iron and manganese filters, arsenic removal, UV and reverse osmosis for homes and community wells in Pierce, south King and Thurston counties.
Sanders Pump and Filtration
Family-owned pump and filtration business based in Amboy, serving southwest Washington with well pump installation and repair, VFD systems, cisterns, flow tests, water testing and well water filtration.
Seattle Water Filtration
Water filtration installer serving King and Pierce counties, mostly for city water, that also sizes and installs whole-house well water treatment for iron, sulfur odor, sediment and hardness, with reverse osmosis for drinking water.
Washington Pure Water Products
Centralia water treatment company installing and servicing iron reduction, water softener, arsenic, UV and reverse osmosis systems for homes and businesses, including homes on well water, with free water testing.
West Coast Plumbing Pumps & Filtration
Family-owned Lacey plumbing, pump and filtration company doing well pump repair, replacement and installation around Olympia since 2012, plus water softeners and filtration, serving Thurston, Pierce, Mason, Grays Harbor and King counties.
Central Washington
Eastern Washington
Culligan Water Conditioning of Moscow
Moscow, Idaho Culligan dealer offering well water testing, softeners, whole-house filtration and reverse osmosis, with Pullman and Clarkston among the Washington communities it serves.
Fogle Pump & Supply
Colville-based well driller, pump installer and water treatment company in business since 1981, with offices in Colville, Republic, Airway Heights and Deer Park serving eastern Washington.
H2O Well Service
Well drilling, pump installation and repair, and water treatment company founded in 1976, with offices in Hayden and Sagle, Idaho and Deer Park, Washington, serving North Idaho and Eastern Washington.
Hoffman Quality Water
Walla Walla water treatment dealer, serving the Walla Walla Valley since 1980, installing and servicing Kinetico softeners and filters, UV sterilizers and reverse osmosis systems for well and city water.
Northern Water & Power
Post Falls, Idaho well pump, water treatment and home services company with a Cheney location, serving eastern Washington and north Idaho with well pump repair and installation, reservoirs and well water treatment.