Northwest (Puget Sound & islands)
A-Plus Water Services
Arlington well pump company serving Snohomish, Skagit, Island and north King counties with pump replacement and repair, pressure tanks, real-estate well inspections and well water treatment.
AAA Pump & Well Drilling
Family-owned Monroe well driller and pump company, serving Snohomish and King counties since 1960, with drilling, decommissioning, well rehab, pump and storage systems, water treatment and inspections.
Access Well Drilling
Sedro-Woolley well driller, started in 2024, drilling residential, irrigation and municipal wells, installing pumps and treatment, inspecting and decommissioning wells in Skagit, Whatcom, Island and Snohomish counties.
Alcorn Pump & Water Filtration
Family-owned Enumclaw well pump and filtration company doing pump installation and repair, pressure and storage systems, well rehabilitation by brushing and bailing, well shock, inspections, flow tests and well water filtration, with 24-hour out-of-water service.
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.
Barker Drilling
Mount Vernon driller building domestic, irrigation and commercial water wells and geothermal heat pump boreholes, installing and repairing submersible and line shaft turbine pumps, with 24-hour emergency pump repair.
Brown's Plumbing & Pumps
Marysville plumbing, pump and spa company with a retail store, providing well pump replacement, pressure and storage tanks, booster pumps, real-estate inspections and well water treatment around Marysville, Arlington and Everett since 1945.
Crabtree Well Drilling
Family-owned Kingston well driller, in business since 1962, drilling residential and commercial wells, selling and repairing pumps, inspecting and decommissioning wells across Kitsap County and parts of Jefferson and Clallam counties.
Duckworth Pump & Well Services
Port Orchard pump and well service company, founded in 1972, doing pump and pressure tank work, well inspections, water testing and treatment around Kitsap County, Gig Harbor and Port Ludlow.
Gresham Pump & Drilling
Family-owned Poulsbo well driller and pump company, established in 1977, drilling, cleaning and decommissioning wells and installing pumps, storage and treatment in Kitsap, Jefferson, Pierce and Mason 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.
Livermore & Son
Family-owned Deming well driller and pump service company drilling steel-cased wells, repairing and replacing pumps, remediating sandy or declining wells, and testing and inspecting wells in Whatcom and Skagit counties.
Lofall Well Drilling
Poulsbo water well driller founded in 1988, drilling residential, Group B community and replacement wells, deepening and rejuvenating wells, decommissioning and replacing pumps in Kitsap, Jefferson, Clallam and Mason counties.
Mr. Bill's Pump & Well
Arlington pump and well service company, established in 1978, serving Snohomish, King, Island and Skagit counties with pump and pressure tank work, holding tanks, well jetting, inspections and water treatment.
Ralph's Pump & Well Service
Monroe well pump company serving Snohomish and north King counties with same-day pump repair, pump and booster installation, real-estate well inspections and well water treatment.
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.
Steve's Pump & Well Service
Port Orchard pump and well service company designing, installing and repairing well pump and pressure systems, testing pumps and water, and installing water treatment in Kitsap, Pierce, Thurston, Mason and nearby counties.
Total Wells Pumps and Filtration
Monroe-area well company on the Snohomish–King county line, doing pump repair and replacement, booster and storage systems, well rehabilitation and bailing, camera inspections, real-estate well inspections and filtration.
Valley Pump Inc.
Family-owned Auburn pump and well drilling company, in business since 1938, drilling wells in King and Pierce counties and installing pumps, tanks and filtration, with well inspections for real estate sales.
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.
Arcadia Drilling
Shelton water well driller and pump contractor, family-owned since 1962, drilling wells and installing and servicing pumps, pressure systems and well disinfection across nine western Washington counties.
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.
Dale McGhee & Sons
Kelso well driller serving Cowlitz County and surrounding areas since 1946, offering rotary well drilling, deepening and decommissioning, pump and tank installation, and water filtration and conditioning.
Davis Pumps
Family-owned Belfair pump company serving Mason and Kitsap counties and parts of Pierce and Thurston with well water systems, pump and tank repair, well inspections, water testing and filtration.
Grays Harbor Equipment
Aberdeen pump, pool and plumbing supply store that installs and services residential and commercial submersible and jet pumps, installs water treatment and conditioning, and sells pressure tanks, well supplies and storage tanks.
Mountain View Pumps & Filtration
Eatonville pump and filtration company, established in 1994, installing and repairing well pumps, pressure tanks and holding tanks, cleaning wells by brush and bail, and selling water treatment across Pierce, south King, Thurston and Lewis counties.
Richardson Well Drilling
Puyallup well driller in business since 1939, drilling domestic, irrigation and municipal wells with dual rotary rigs and offering pump service, water conditioning and iron removal in seven western Washington 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.
Skyline Pump & Machine
Family-owned Chehalis water system company, in business since 1984, offering well drilling, pump installation and repair, VFD controls, well maintenance, decommissioning and water filtration, with 24/7 emergency service.
United Water Services
Vancouver water treatment company serving Clark, Cowlitz and Skamania counties and the Portland area, with free water testing and well water treatment for iron, sulfur, sediment, bacteria and hardness.
Wells and More
Family-owned Toutle, Cowlitz County, well service company doing pump and tank installation, well cleaning, flow tests, water sampling and well water filtration, with 24/7 emergency service.
Central Washington
Empire EWP
Wenatchee well driller drilling domestic, irrigation and municipal wells, with pump service, flow testing, water sampling and well decommissioning across central and eastern Washington.
M & M Pumping
Richland water well and pump company serving residential, agricultural and commercial customers with pump installation and repair, pressure tanks, reservoir systems, well flow tests including VA/FHA tests, and water treatment.
Precision Pump and Well Services
Benton City well pump company installing, repairing and replacing well pumps and pressure tanks and inspecting well systems across the Tri-Cities and lower Yakima Valley, with 24/7 emergency service.
Twisp Well Pump
Twisp domestic well pump contractor installing and servicing standard and variable speed pump systems, inspecting well equipment for home sales, collecting water samples and running drawdown tests.
Eastern Washington
A & H Well Services
Family-owned well company based in Chewelah that drills wells, installs and repairs pumps, and offers well rehabilitation, video logging, flow and water testing and cisterns, with 24/7 service.
Independence Drilling
Well drilling contractor in Blanchard, Bonner County, Idaho, founded in 2024, drilling residential, agricultural and commercial wells and offering deepening, well repair and rehabilitation in Idaho and Washington.
Joyco Drilling
Family-owned well driller and pump installer based near Elk, serving northeast Washington and northwest Idaho with drilling, deepening, cleanout, decommissioning, camera inspection, pumps and cisterns.
Lemco Drilling
Family-owned well driller and pump company in Lind, drilling domestic, commercial and small irrigation wells and installing and servicing pumps in Adams, Grant, Franklin, Whitman and Lincoln counties.
Nielsen Pump Service
Family-owned water well pump service for the Tri-Cities and surrounding area, installing and repairing well pumps and doing drawdown testing, water sampling and temporary water setups.
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.
Pride Pump
Chattaroy well and pump service company working around Spokane and the Inland Northwest on well pumps, constant-pressure systems, reservoirs, well inspections, rehabilitation, water testing and treatment.