Showing all 163 listings.
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A & A Well Drilling
Lopez Island company in San Juan County with an Ecology-licensed water well operator and L&I pump registrations, listed from state license records.
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.
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.
A1 Drilling and Digging
Stanwood well contractor building 36-inch dug wells and 6- to 12-inch cable tool drilled wells for domestic, irrigation and community water systems, with well decommissioning and pump sales and service.
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.
Advanced Drilling
Rochester, Thurston County, rotary well driller that also deepens and decommissions wells, installs and repairs pumps, pressure tanks and variable speed drives, and installs water treatment in southwest Washington.
Ag Health Laboratories, Inc.
Sunnyside agricultural and water lab accredited by Ecology for drinking water coliform and nitrate, with sample drop boxes in Union Gap, Pasco and Lynden.
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.
American Drilling
Ellensburg well driller in Kittitas County, listed from Washington Ecology water well operator license records.
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.
Anatek Labs, Inc. - Wenatchee
Wenatchee branch of Anatek Labs, accredited by Ecology for drinking water bacteria testing; Anatek offers private well sampling kits for the Yakima and Wenatchee area.
Anatek Labs, Inc. - Yakima
Yakima branch of Anatek Labs, an Ecology-accredited drinking water lab that offers private well tests for bacteria, nitrate, metals including arsenic, and PFAS, with sampling kits by request.
Anderson Drilling
Family-owned Lake Stevens well driller and pump company, trading as Anderson Pump & Drilling, drilling 6- and 8-inch steel-cased wells and installing and repairing pumps and tanks in Snohomish, north King, south Skagit and parts of Island counties.
Apple Valley Well Drilling
Selah well driller drilling domestic, irrigation, commercial and geothermal wells and decommissioning old wells in Yakima, Kittitas and Klickitat counties.
Aqua Pumps and Drilling
Port Angeles, Clallam County, water well driller listed from state license records, with two Ecology-licensed water well operators and an L&I pump contractor registration.
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.
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.
Arlington Well Drilling
Arlington company in Snohomish County with an Ecology-licensed water well operator, listed from state license records.
AW Drill & Pump
Yelm, Thurston County, water well driller listed from state license records, with one Ecology-licensed water well operator.
B & C Well Drilling
Bellingham company in Whatcom County with an Ecology-licensed water well operator and L&I pump registrations, listed from state license records.
Bach Drilling
Family-owned Ellensburg well driller working in Kittitas County since 1943, drilling wells from 6-inch domestic wells up to 30-inch hatchery and municipal wells.
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.
Basin Pump Service
Family-owned Moses Lake pump company working on domestic and small irrigation well systems in the Columbia Basin since 1993, with 24/7 pump service.
BB Drilling
Omak company in Okanogan County with an Ecology-licensed water well operator, listed from state license records.
Beardslee Drilling
Colville water well drilling company in Stevens County, listed from Washington Ecology and L&I license records.
Benton-Franklin Health District Lab
Benton-Franklin Health District's Ecology-accredited lab in Kennewick, which runs well water tests for coliform bacteria, nitrate, hardness and fluoride.
Big Dog Drilling
Port Townsend, Jefferson County, water well driller listed from state license records, with one Ecology-licensed water well operator.
Bison Drilling
Spanaway, Pierce County, water well driller listed from state license records, with one Ecology-licensed water well operator.
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.
Boyce Drilling
Royal City water well drilling company in Grant County, listed from Washington Ecology license records.
Bransen Drilling
Moses Lake water well drilling company formed in 2004, drilling domestic, irrigation and municipal wells with a dual rotary rig, and saying it serves all of Washington State.
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.
Burns Drilling
Pasco water well drilling company in Franklin County, listed from Washington Ecology license records.
Carpenter Drilling
Benton City drilling contractor, founded in 1995, that does core drilling and builds, restores, cleans and maintains water wells, including Hanford monitoring and water wells.
Cascade Drilling NW
Snohomish County driller, established in 1987, offering water well and geothermal drilling, with a specialty in geothermal ground loop installations.
Cascade Well Drilling
Goldendale well driller in Klickitat County, listed from Washington Ecology water well operator license records.
Charon Drilling
Graham, Pierce County, water well driller listed from state license records, with one Ecology-licensed water well operator.
Clallam County Environmental Laboratory
Clallam County's Ecology-accredited water lab in the Port Angeles courthouse, testing private well water for coliform bacteria and nitrate, with bottles also available in Sequim and Forks.
Clarkes Pump Service
Family-run Lacey well pump company installing and repairing well pumps, pressure tanks, booster pumps and storage tanks, doing well inspections and flow tests, and installing iron filters, softeners and UV systems across the South Sound.
Cobalt Drilling
Tri-Cities well driller founded in 2021, drilling residential, irrigation and Group A wells, and offering camera inspections, clean-outs, repairs and well decommissioning.
Coldspring Pumps
Eastsound water system company serving San Juan County since 1980, with well testing, system design, pump and pressure tank installation and repair, filtration, and rain catchment and other alternative water supplies.
Coolwater Drilling
Bremerton company in Kitsap County with an Ecology-licensed water well operator and L&I pump registrations, listed from state license records.
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.
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.
Culligan Water Conditioning of the Tri-Cities
Kennewick Culligan dealer offering well water testing, softeners, whole-house filtration and reverse osmosis in Kennewick, Pasco, Richland, West Richland and Prosser, plus Hermiston and Pendleton in Oregon.
Dahlman Pump & Well Drilling
Family-owned Skagit County well driller and pump installer, in business since 1950, drilling 6- to 14-inch wells and installing pumps, tanks and water filtration across northwest Washington.
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 Drilling
Belfair, Mason County, water well driller listed from state license records, with two Ecology-licensed water well operators and an L&I pump contractor registration.
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.
DC Drilling
Moses Lake well drilling contractor drilling domestic, irrigation and municipal wells across the Columbia Basin, with well cleaning, repair, deepening, flow tests and decommissioning.
Don Pitner Jr Well Drilling
Battle Ground, Clark County, water well driller listed from state license records, with one Ecology-licensed water well operator.
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.
Elemental Well Service
Deer Park water well drilling company in Spokane County, listed from Washington Ecology license records.
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.
Exact Scientific Services, Inc.
Ferndale lab accredited by Ecology for drinking water, offering homeowner well tests for coliform bacteria, nitrate, a metals and minerals panel including arsenic and lead, and a nuisance panel.
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.
Gady Pump & Electric
Colbert pump and electrical contractor serving Spokane since 1971, installing and servicing well pumps, pump controls, pressure tanks and reservoir systems for homes, water districts and golf courses.
Gene's Well Drilling
Stanwood company in Snohomish County with an Ecology-licensed water well operator, listed from state license records.
Generation Drilling
Mount Vernon company in Skagit County with an Ecology-licensed water well operator, listed from state license records.
Grande Drilling
Belfair, Mason County, water well driller listed from state license records, with one Ecology-licensed water well operator.
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.
Gregory Drilling
North Bend drilling contractor, in business since 1975, drilling home water wells and deep irrigation wells, rehabilitating and video-inspecting wells, and decommissioning wells across Washington, alongside environmental and geotechnical work.
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.
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.
Harding Drilling
Family-owned Walla Walla well driller in business since 1945, using cable tool rigs to drill domestic and irrigation wells and offering cleanouts, deepening, repairs and water production testing.
Harris Water Well Drilling
Shelton, Mason County, water well driller listed from state license records, with one Ecology-licensed water well operator.
Hickam Well Drilling
Ecology-licensed water well driller in Dayton, Columbia County, operated by Jasper Mountain Enterprises LLC, listed here from Washington state license records.
Hidden Rivers Drilling
Selah well driller in Yakima County, listed from Washington Ecology water well operator license records.
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.
Hoopes Well Drilling
Family-run Richland well driller drilling domestic, irrigation and municipal wells, and rehabilitating, cleaning out and decommissioning existing wells.
Horsley Drilling
Family-owned well driller in Athol, Idaho, founded in 2005, drilling residential, irrigation, commercial and municipal wells and abandoning wells in North Idaho and Spokane and Pend Oreille counties.
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.
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.
Ira Bopp Pump and Drill
Kelso, Cowlitz County, water well driller listed from state license records, with one Ecology-licensed water well operator.
J & J Well Drilling
Ecology-licensed water well drilling company in Valleyford, Spokane County, listed here from Washington state license records.
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.
Joy Drilling Company
Ecology-licensed water well drilling company in Moses Lake, Grant County, listed here from Washington state license records.
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.
Ken Thompson Drilling
Ecology-licensed water well driller in Moses Lake, Grant County, with L&I pump and irrigation licenses, listed here from Washington state license records.
Kings Water Wells
Centralia, Lewis County, water well driller listed from state license records, with three Ecology-licensed water well operators.
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.
Lewis County Environmental Health Laboratory
Lewis County's Ecology-accredited water lab in Chehalis, testing private well water for coliform bacteria and nitrate, with monthly drop-off in Morton, Randle and Packwood.
Lincoln County Environmental Health Lab
Lincoln County Health Department lab in Davenport, accredited by Ecology for drinking water coliform bacteria; it also offers non-certified nitrate and fluoride screening for private wells.
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.
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.
M-K Pump and Drilling
Dallesport well driller in Klickitat County, listed from Washington Ecology water well operator license records.
M-K Waterwell Drilling
Family-owned Dallesport well driller that has drilled in the Columbia Gorge area for over 50 years, offering new wells, well deepening and decommissioning.
Marty Rugo LLC
Republic company in Ferry County with an Ecology-licensed water well operator, listed from state license records.
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.
Mauldin's Well Service
Friday Harbor company in San Juan County with an Ecology-licensed water well operator and L&I pump registrations, listed from state license records.
Mavwell Drilling
Eatonville, Pierce County, water well driller listed from state license records, with one Ecology-licensed water well operator.
McGuire's Well Drilling
Owner-operated Yakima well driller, in business since 1978, drilling residential, agricultural and community wells and deepening and decommissioning wells in the Yakima Valley.
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.
Moerke & Sons Pump & Drilling
Chehalis well driller and pump contractor, family-owned since 1980, offering well drilling and decommissioning, 24/7 pump repair, water filtration and bulk water delivery in southwest Washington.
- BBB reviews
Moomaw Drilling
Omak well driller in Okanogan County, listed from Washington Ecology water well operator license records.
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.
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.
MVM Quality Drilling
Family-owned Pateros well driller and pump installer serving North Central Washington, drilling water wells with air rotary rigs and designing pump systems.
Mykol Pump & Drilling
Second-generation Olympia well pump company, owner-operated, that replaces and installs well pumps and water systems for homes and small shared (Group B) wells in Thurston County.
Nicholson Drilling
Port Orchard well and pump company serving Kitsap, Pierce and Mason counties since 1944, installing, maintaining and repairing well pumps, pressure tanks and whole-house filtration, with 24/7 emergency response.
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.
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.
NW Hydro Fracturing
Ecology-licensed water well hydrofracturing business with a Clayton, Stevens County mailing address, listed here mainly from Washington state license records.
O'Connell Drilling & Supply
Brewster well driller and pump supplier drilling domestic and agricultural wells and installing turbine, submersible and centrifugal pumps in Okanogan, Douglas and Chelan counties.
Oasis Drilling
Union Gap well driller serving the Yakima Valley since 1985, drilling domestic, irrigation, livestock, community and geothermal wells, installing pumps and decommissioning wells.
Oasis Well Drilling
Port Angeles, Clallam County, water well driller listed from state license records, with one Ecology-licensed water well operator and an L&I pump contractor registration.
Okanogan County Public Health Laboratory
Okanogan County Public Health's Ecology-accredited water lab, testing private well water for coliform bacteria and nitrate, with free bottles at city halls and a monthly city hall sample pick-up.
Okanogan Drilling & Pump Services
Omak-area well driller and pump installer since 1981, drilling residential wells and selling, installing and repairing pumps in Okanogan and Ferry counties, with 24/7 pump service.
Pacific County DCD WQ Laboratory
Pacific County Community Development's Ecology-accredited drinking water lab, testing coliform bacteria on samples dropped off in South Bend or Long Beach on Tuesdays.
Pat's Pumps
Family-owned well pump company in Elk serving rural Spokane County, northeastern Washington and north Idaho, installing and repairing submersible and jet well pumps for homes, farms and businesses.
Peck Drilling
Goldendale well driller in Klickitat County, listed from Washington Ecology water well operator license records.
Peterson Pump Service
Family-owned well pump installation and repair business near Woodland in north Clark County, answering calls six days a week from early morning to late evening.
Picatti Brothers
Yakima well and pump service company, in business since 1928, repairing and replacing residential, farm and municipal well pumps, with constant-pressure systems, well videoing and rehabilitation and 24/7 emergency service.
Pitner Drilling & Pump
Family-owned well driller and pump contractor in Ariel, near Woodland, serving Cowlitz, Clark, Skamania and Wahkiakum counties since 1961 with well drilling, pump service, flow tests, inspections 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.
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.
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.
Redinger Inc.
Family-owned Yacolt water well driller using air rotary rigs for residential and commercial wells in Clark, Cowlitz, Skamania and Lewis counties, handling siting, permits and well reports.
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.
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.
Rick Poulin Drilling
Selah well driller in Yakima County, listed from Washington Ecology water well operator license records.
RJ Exploration & Drilling
Odessa-based drilling company in Lincoln County whose operators hold Ecology water well licenses. Listed from state license records; no company website was found.
Robinson Drilling & Development
Yakima well driller and pump installer, listed from Washington Ecology water well operator licenses and L&I pump contractor registrations.
Rock Hard Drilling
Burbank-based water well driller serving rural properties from the Tri-Cities to Ellensburg, offering residential, commercial and agricultural wells, deepening, video inspection and dry-well repair.
- Facebook reviews
Ron Edgell Well Drilling
Castle Rock, Cowlitz County, water well driller listed from state license records, with two Ecology-licensed water well operators and an L&I pump contractor registration.
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.
Schroder's Well Drilling
Goldendale well driller and pump installer in Klickitat County, listed from Washington Ecology water well operator licenses and L&I pump contractor registrations.
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.
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.
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.
Spectra Laboratories - Kitsap, LLC
Poulsbo drinking water lab accredited by Ecology that serves private well owners, with weekly sample pick-up sites on the Kitsap and Olympic peninsulas and in Gig Harbor.
Spring Creek Drilling
Small Reardan well-drilling crew drilling residential, farm and commercial water wells within about 90 miles of Reardan, covering most of Lincoln, Stevens and Spokane counties.
Statewide Well Drilling
Family-owned well drilling contractor headquartered in Pasco, drilling and repairing residential and commercial water wells and decommissioning wells across the Tri-Cities area. It does not install or service pumps.
- Facebook reviews
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.
Stillwater LLC
Richland well driller in Benton County, listed from Washington Ecology water well operator license records.
Swanson Drilling
Olympia, Thurston County, water well driller listed from state license records, with one Ecology-licensed water well operator.
Taft Plumbing & Septic
Ocean Park, Pacific County, water well driller listed from state license records, with one Ecology-licensed water well operator.
Tarbert Drilling
Davenport-area water well drilling contractor in Lincoln County with an Ecology water well operator license. Listed from state license records; no company website was found.
The Drillerman
Newport water well driller in Pend Oreille County, with an Ecology water well operator license and L&I domestic pump licenses. Listed from state license records; no working company website was found.
Thurston County Health Department Laboratory
Thurston County Public Health's Ecology-accredited water lab in Olympia, testing drinking water for coliform and E. coli and nitrate, with bottle pickup at satellite sites including Mason County.
Tillia Well Drilling
Woman-owned Port Angeles well driller serving Clallam and Jefferson counties for more than two decades, drilling and deepening residential and commercial wells, repairing and decommissioning wells and drilling test holes.
- BBB reviews
Timber Ridge Excavating
Sedro-Woolley company in Skagit County with an Ecology-licensed water well operator, listed from state license records.
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.
TPM Water Systems
Family-owned Lewiston-Clarkston area well pump contractor, working in the region for more than 40 years, that installs, repairs and replaces well pumps and installs home water reservoir systems.
Tumwater Drilling & Pump
Dryden well driller and pump company, in business since 1974, drilling 6- to 10-inch domestic and irrigation wells and offering pump service, flow tests and water treatment in Chelan, Douglas, Kittitas and Grant counties.
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.
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.
Valley Drilling
Family-owned water well driller in Valley, Stevens County, drilling residential, commercial and irrigation wells 6 to 24 inches in diameter across eastern Washington.
- BBB reviews
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.
Vermillion Pump & Drilling
Family-owned Chattaroy well driller and pump company serving Spokane and surrounding areas, offering well drilling, deepening, clean-out and repair, pump systems, reservoirs, well video and certified pump tests.
Wamsley Well Drilling
Selah well driller serving Yakima and Kittitas counties since 2012, drilling domestic and irrigation wells and offering well rehab, deepening and decommissioning.
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.
Water Management Laboratories, Inc.
Tacoma drinking water lab accredited by Ecology, testing coliform bacteria, nitrate and metals including arsenic, with weekly sample drop-off points from Enumclaw to Aberdeen and Chehalis.
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.
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.
Westland Drilling & Pump
Moses Lake well pump contractor installing, repairing and replacing well pump systems and testing wells across central and eastern Washington.
Williams Water Wells
Toledo, Lewis County, water well driller listed from state license records, with one Ecology-licensed water well operator.
Williams Well Drilling
Port Angeles, Clallam County, water well driller listed from state license records, with one Ecology-licensed water well operator.
Wilson Water Co.
Odessa-area pump contractor providing agricultural and domestic pump service across the Columbia Basin, working on turbine, centrifugal and submersible pumps and VFD systems.
WMI Drilling
Family-owned Stanwood water well drilling company, licensed and bonded, serving King, Snohomish, Skagit and Whatcom counties.