Well pump repair and water testing in Washington
From the Washington State Department of Labor & Industries list of registered water well drillers and pump installers, read October 10, 2026. We show the registration types the state gives each one. This is Washington's contractor registration list (L&I), not the Department of Ecology's well driller license list, so it shows registered businesses only.
Well pump businesses registered in Washington
Businesses with a registration on the Washington list, ranked by our quality score: a state registration, a phone on the list, a matching open Google profile, a website and the number of registered people. Nobody can pay to move up.
H2o Well Service
90/100JKA Well Drilling & Pumps
90/100Brown's Plumbing & Pumps INC
90/100Joyco Drilling INC
90/100Tumwater Drilling & Pump INC
90/100Towns with registered well businesses
All 57 well pump businesses in Washington, by town
Belfair: Davis Drilling LLC
Bellingham: B & C Well Drlng/pump Srvs INC
Blanchard: Independence Drilling LLC
Bothell: Cascade Drilling LP
Bremerton: Coolwater Drilling INC
Burbank: Rock Hard Drilling, LLC
Centralia: Kings Water Wells INC
Chattaroy: Vermillion Pump & Drilling LLC
Chehalis: Moerke & Sons Pump & Drlng INC
Chewelah: A & H Well Services LLC
Colville: Fogle Pump & Supply INC
Davenport: Tarbert Drilling
Dryden: Tumwater Drilling & Pump INC
Eastsound: Coldspring Pumps INC
Eatonville: Mtn View Pumps/filtration INC
Edgewood: Holt Drilling Services
Ellensburg: Kelly Pump Sales & Service Inc
Goldendale: Schroder's Well Drilling LLC
Grangeville: Stuivenga Vessey Drilling
Hayden Lake: H2o Well Service
Lynnwood: Day & Nite Plumbing & Htg INC
Marysville: Brown's Plumbing & Pumps INC
Monroe: JKA Well Drilling & Pumps, Total Wells Pumps and Filt LLC
Mount Vernon: Barker Drilling LLC, Generation Drilling, Robinson Pump Service
Nampa: Haz-tech Drilling INC
Newport: Joyco Drilling INC
North Bend: Gregory Drilling Incorporated
Olympia: Glacier Drilling & Dewatering, Mykol Pump Drilling INC
Pasco: Nelson Drilling LLC, Statewide Well Drilling INC
Port Angeles: Tillia Well Drilling INC
Port Orchard: Duckworth Pump & Well Services
Poulsbo: Lofall Well Drilling INC
Puyallup: Blue Line Water INC, Clean Water Pumps&Filters LLC
Reardan: Spring Creek Drilling LLC
Richland: Hoopes Well Drilling LLC
Rochester: Advanced Drilling LLC
Royal City: Empire Well Drilling LLC
Selah: Hidden Rivers Drilling LLC
Spokane: Geowest Drilling INC
Spokane Valley: Crux Subsurface INC, Schell Pump Service
Toledo: Williams Water Well's INC
Toutle: Wells and More LLC
Twisp: Twisp Well Pump LLC
Union Gap: Oasis Drilling LLC
Valleyford: J & J Well Drilling INC
Vancouver: Hansen Drilling LLC
Wenatchee: Empire Well Drilling LLC, Wenatchee Pumps LLC
Woodinville: Cascade Drlg/lp A Ltd Ptshp/de
Woodland: Pitner Drilling & Pump INC
Testing your well water in Washington
We have not yet collected published test fees for Washington. Published fees in other states show what labs charge. Which tests fit your home.
What Washington's registration list shows
- 114 entries on the list, 15 of them based outside Washington.
- 99 are based in Washington and hold a class a homeowner would hire: pump installation, water well drilling.
- Most are based in Mount Vernon (5), Olympia (5), Puyallup (4), Monroe (4), Woodland (4), Burbank (3).
Contractors registered with L&I whose specialty is Well Drilling or Domestic Pump. The Department of Ecology licenses the drillers themselves (people); this list is the business registration. Source: L&I Contractor License Data - General (specialty Well Drilling or Domestic Pump, active), Washington State Department of Labor & Industries. Read October 10, 2026.
Registered in Washington, by town
Names, registration types and phones as the state publishes them. A listing above means we also matched the business on Google.
| Town | Name on the list | Registration types | Registration | Expires | Phone |
|---|---|---|---|---|---|
| Mount Vernon | Barker Drilling LLC | Registered contractor, specialty Domestic Pump | BARKEDL762KL | Jun 2028 | (360) 422-5882 |
| Barker Drilling LLC | Registered contractor, specialty Domestic Pump | BARKEDLA682L | Jun 2028 | (360) 422-5882 | |
| Generation Drilling | Registered contractor, specialty Well Drilling | GENERD*767KT | May 2028 | (360) 420-4057 | |
| Mike's Repair | Registered contractor, specialty Domestic Pump | MIKESR*782KD | May 2028 | (208) 573-1702 | |
| Robinson Pump Service | Registered contractor, specialty Domestic Pump | ROBINPS781C5 | Feb 2028 | (208) 573-1702 | |
| Olympia | Evans Septic Service LLC | Registered contractor, specialty Domestic Pump | EVANSSS7614H | Jul 2028 | (360) 888-8503 |
| Evans Septic Service LLC | Registered contractor, specialty Domestic Pump | EVANSSS761MH | Jul 2028 | (360) 888-8503 | |
| Glacier Drilling/de Wtrng LLC | Registered contractor, specialty Well Drilling | GLACIDD864CQ | Feb 2028 | (360) 491-0265 | |
| Mykol Pump Drilling INC | Registered contractor, specialty Domestic Pump | MYKOLPD788DC | Mar 2028 | (360) 491-3820 | |
| Mykol Pump Drilling INC | Registered contractor, specialty Domestic Pump | MYKOLPD788UC | Mar 2028 | (360) 491-3820 | |
| Monroe | JKA Well Drilling & Pumps | Registered contractor, specialty Domestic Pump | JKAWEWD784DB | Apr 2028 | (360) 794-7300 |
| JKA Well Drilling & Pumps | Registered contractor, specialty Domestic Pump | JKAWEWD784UB | Apr 2028 | (360) 794-7300 | |
| Total Wells Pumps and Filt LLC | Registered contractor, specialty Domestic Pump | TOTALWP7783H | Jun 2027 | (206) 484-5826 | |
| Total Wells Pumps and Filt LLC | Registered contractor, specialty Domestic Pump | TOTALWP778LH | Jun 2027 | (206) 484-5826 | |
| Puyallup | Blue Line Water INC | Registered contractor, specialty Domestic Pump | BLUELLW772WD | Dec 2026 | (253) 841-2101 |
| Blue Line Water INC | Registered contractor, specialty Domestic Pump | BLUELLW776BD | Dec 2026 | (253) 841-2101 | |
| Clean Water Pumps&Filters LLC | Registered contractor, specialty Domestic Pump | CLEANWP786CQ | Aug 2028 | (253) 256-4468 | |
| Clean Water Pumps&Filters LLC | Registered contractor, specialty Domestic Pump | CLEANWP786TQ | Aug 2028 | (253) 256-4468 | |
| Woodland | Peterson Pump Service LLC | Registered contractor, specialty Domestic Pump | PETERPS764JS | Apr 2028 | (360) 977-0038 |
| Pitner Drilling & Pump INC | Registered contractor, specialty Domestic Pump | PITNEDP944RF | Dec 2028 | (360) 225-6955 | |
| Pitner Drilling & Pump INC | Registered contractor, specialty Well Drilling | PITNEDP981JD | Aug 2028 | (360) 225-6955 | |
| Steadfast Services NW LLC | Registered contractor, specialty Well Drilling | STEADSN840BO | Feb 2028 | (360) 859-3174 | |
| Burbank | Nielsen Pump Service LLC | Registered contractor, specialty Domestic Pump | NIELSPS752BP | Jan 2027 | (509) 378-1341 |
| Nielsen Pump Service LLC | Registered contractor, specialty Domestic Pump | NIELSPS756WP | Jan 2027 | (509) 378-1341 | |
| Rock Hard Drilling, LLC | Registered contractor, specialty Well Drilling | ROCKHHD783MH | Aug 2028 | (509) 851-3011 | |
| Amboy | Sanders Pump & Filtration | Registered contractor, specialty Domestic Pump | SANDEPF750P3 | Nov 2027 | (360) 798-6738 |
| Sanders Pump & Filtration | Registered contractor, specialty Well Drilling | SANDEPF754O6 | Dec 2027 | (360) 798-6738 | |
| Belfair | Davis Drilling LLC | Registered contractor, specialty Domestic Pump | DAVISDL7541P | Apr 2027 | (360) 275-5367 |
| Davis Drilling LLC | Registered contractor, specialty Domestic Pump | DAVISDL754JP | Apr 2027 | (360) 275-5367 | |
| Bremerton | Coolwater Drilling INC | Registered contractor, specialty Domestic Pump | COOLWDI7842D | Nov 2027 | (360) 830-9005 |
| Coolwater Drilling INC | Registered contractor, specialty Domestic Pump | COOLWDI784KD | Nov 2027 | (360) 830-9005 | |
| Chattaroy | Vermillion Pump & Drilling LLC | Registered contractor, specialty Domestic Pump | VERMIPD786TP | Feb 2028 | (509) 850-1479 |
| Vermillion Pump & Drilling LLC | Registered contractor, specialty Domestic Pump | VERMIPDA82TP | Feb 2028 | (509) 850-1479 | |
| Deming | Livermore & Son LLC | Registered contractor, specialty Domestic Pump | LIVERSL7771M | May 2027 | (360) 398-2211 |
| Livermore & Son LLC | Registered contractor, specialty Domestic Pump | LIVERSL777JM | Apr 2027 | (360) 398-2211 | |
| Dryden | Tumwater Drilling & Pump INC | Registered contractor, specialty Domestic Pump | TUMWADP780DS | Mar 2028 | (509) 548-5361 |
| Tumwater Drilling & Pump INC | Registered contractor, specialty Domestic Pump | TUMWADP780US | Mar 2028 | (509) 548-5361 | |
| Eastsound | Coldspring Pumps INC | Registered contractor, specialty Domestic Pump | COLDSPI781KB | May 2028 | (360) 376-2739 |
| Coldspring Pumps INC | Registered contractor, specialty Domestic Pump | COLDSPIA872B | May 2028 | (360) 376-2739 | |
| Eatonville | Mtn View Pumps/filtration INC | Registered contractor, specialty Domestic Pump | MTNVIVP78861 | Sep 2028 | (253) 847-5259 |
| Mtn View Pumps/filtration INC | Registered contractor, specialty Domestic Pump | MTNVIVP788O1 | Sep 2028 | (253) 847-5259 | |
| Edmonds | Northern Waters INC | Registered contractor, specialty Domestic Pump | NORTHWI78597 | Dec 2026 | (425) 672-9242 |
| Northern Waters INC | Registered contractor, specialty Domestic Pump | NORTHWI785R7 | Dec 2026 | (425) 672-9242 | |
| Elk | Joyco Drilling INC | Registered contractor, specialty Domestic Pump | JOYCODI7865R | Aug 2028 | (509) 292-2000 |
| Joyco Drilling INC | Registered contractor, specialty Domestic Pump | JOYCODI786NR | Aug 2028 | (509) 292-2000 | |
| Ellensburg | Kelly Pump Sales & Service Inc | Registered contractor, specialty Domestic Pump | KELLYPS7814M | Jul 2028 | (509) 607-6292 |
| Kelly Pump Sales & Service Inc | Registered contractor, specialty Domestic Pump | KELLYPS781MM | Jul 2028 | (509) 607-6292 | |
| Goldendale | Schroder's Well Drilling LLC | Registered contractor, specialty Domestic Pump | SCHROWD781DS | Apr 2027 | (509) 773-6205 |
| Schroder's Well Drilling LLC | Registered contractor, specialty Domestic Pump | SCHROWD781US | Apr 2027 | (509) 773-6205 | |
| Greenacres | Schell Pump Service | Registered contractor, specialty Domestic Pump | SCHELPS792OB | Oct 2027 | (509) 922-4756 |
| Schell Pump Services | Registered contractor, specialty Domestic Pump | SCHELPS997RM | Dec 2027 | (509) 981-0914 | |
| Malo | JR Pump Service LLC | Registered contractor, specialty Domestic Pump | JRPUMPS77314 | Apr 2027 | (509) 207-5181 |
| JR Pump Service LLC | Registered contractor, specialty Domestic Pump | JRPUMPS773J4 | Apr 2027 | (509) 207-5181 | |
| Newport | Driller Man, The | Registered contractor, specialty Domestic Pump | DRILLM*781C3 | Feb 2028 | (509) 671-1159 |
| Driller Man, The | Registered contractor, specialty Domestic Pump | DRILLM*781T3 | Feb 2028 | (509) 671-1159 | |
| Pasco | Nelson Drilling LLC | Registered contractor, specialty Well Drilling | NELSODL895WM | Apr 2027 | (509) 547-3018 |
| Statewide Well Drilling INC | Registered contractor, specialty Well Drilling | STATEWD015LZ | Apr 2027 | (509) 542-1522 | |
| Port Angeles | D & G General Contractor | Registered contractor, specialty Domestic Pump | DGGENGG853PZ | Oct 2027 | (360) 461-8200 |
| Tillia Well Drilling INC | Registered contractor, specialty Well Drilling | TILLIWD043KO | Feb 2028 | (360) 452-3662 | |
| Port Orchard | Duckworth Pump & Well Services | Registered contractor, specialty Domestic Pump | DUCKWPW7761J | Apr 2027 | (360) 876-0958 |
| Duckworth Pump & Well Services | Registered contractor, specialty Domestic Pump | DUCKWPW776JJ | Apr 2027 | (360) 876-0958 | |
| Toutle | Wells and More LLC | Registered contractor, specialty Domestic Pump | WELLSML7852D | Nov 2027 | (360) 274-4329 |
| Wells and More LLC | Registered contractor, specialty Domestic Pump | WELLSML785KD | Oct 2027 | (360) 274-4329 | |
| Twisp | Twisp Well Pump LLC | Registered contractor, specialty Domestic Pump | TWISPWP753D7 | Mar 2027 | (509) 733-2183 |
| Twisp Well Pump LLC | Registered contractor, specialty Domestic Pump | TWISPWP753U7 | Mar 2027 | (509) 733-2183 | |
| Wenatchee | Empire Well Drilling LLC | Registered contractor, specialty Well Drilling | EMPIRWD876MN | Sep 2027 | (509) 855-2070 |
| Wenatchee Pumps LLC | Registered contractor, specialty Domestic Pump | WENATPL772UB | Feb 2027 | (509) 881-5603 | |
| Allyn | Designed Groundwater Serv LLC | Registered contractor, specialty Well Drilling | DESIGGS911JM | Apr 2027 | (253) 682-7330 |
| Arlington | Bravo Enterprises INC | Registered contractor, specialty Domestic Pump | BRAVOEI773DB | Mar 2027 | (360) 659-7077 |
| Bellingham | B & C Well Drlng/pump Srvs INC | Registered contractor, specialty Well Drilling | BCWELCW767J3 | Apr 2028 | (360) 398-7081 |
| Castle Rock | Ron Edgell Well Drilling INC | Registered contractor, specialty Well Drilling | RONEDWD065D1 | Jan 2028 | (360) 274-4531 |
| Centralia | Kings Water Wells INC | Registered contractor, specialty Well Drilling | KINGSWW748DO | Mar 2028 | (360) 736-7093 |
| Chehalis | Moerke & Sons Pump & Drlng INC | Registered contractor, specialty Domestic Pump | MOERKSP774LW | Jul 2027 | (360) 748-3805 |
| Colville | Beardslee Drilling LLC | Registered contractor, specialty Well Drilling | BEARDDL818MA | Jul 2027 | (509) 684-8205 |
| Davenport | Tarbert Drilling | Registered contractor, specialty Well Drilling | TARBED*954CJ | Oct 2027 | (509) 725-0703 |
| Everett | Access Well Drilling LLC | Registered contractor, specialty Well Drilling | ACCESWD760MR | Jul 2028 | (360) 627-0706 |
| Everson | Highlander Pump & Wel Srvc LLC | Registered contractor, specialty Domestic Pump | HIGHLPW793OA | Sep 2027 | (360) 966-7867 |
| Kennewick | Double A Construction LLC | Registered contractor, specialty Well Drilling | DOUBLCL802BN | Dec 2028 | (509) 851-7606 |
| Lynnwood | Day & Nite Plumbing & Htg INC | Registered contractor, specialty Domestic Pump | DAYNINP789T4 | Dec 2026 | (425) 775-6464 |
| Marysville | Brown's Plumbing & Pumps INC | Registered contractor, specialty Domestic Pump | BROWNPP743BM | Jan 2028 | (360) 659-1002 |
| Moses Lake | Gariano Electric LLC | Registered contractor, specialty Domestic Pump | GARIAEL866NQ | Aug 2028 | (509) 750-2526 |
| North Bend | Gregory Drilling INC | Registered contractor, specialty Well Drilling | GREGODI110JP | Oct 2027 | (425) 869-2372 |
| Poulsbo | Lofall Well Drilling INC | Registered contractor, specialty Well Drilling | LOFALWD922BH | Mar 2027 | (360) 697-1194 |
| Reardan | Spring Creek Drilling LLC | Registered contractor, specialty Well Drilling | SPRINCD794RB | Mar 2028 | (509) 319-4713 |
| Richland | Hoopes Well Drilling LLC | Registered contractor, specialty Well Drilling | HOOPEWD812BG | Jan 2027 | (509) 554-8191 |
| Rochester | Advanced Drilling LLC | Registered contractor, specialty Well Drilling | ADVANDL804DL | Sep 2028 | (360) 273-7735 |
| Seattle | Shannon & Wilson INC | Registered contractor, specialty Well Drilling | SHANNW*378N0 | Mar 2028 | (206) 632-8020 |
| Selah | Hidden Rivers Drilling LLC | Registered contractor, specialty Well Drilling | HIDDERD853PH | May 2027 | (509) 961-6832 |
| Sequim | Neil Triebenbach Services | Registered contractor, specialty Domestic Pump | NEILTS*962ML | Jul 2028 | (360) 670-8119 |
| Shelton | Harris Water Well Drilling LLC | Registered contractor, specialty Well Drilling | HARRIWW873J9 | Apr 2027 | (253) 732-9635 |
| Snohomish | In Situ Engineering | Registered contractor, specialty Well Drilling | INSITE*933OJ | Apr 2027 | (360) 568-2807 |
| Spokane | Geowest Drilling INC | Registered contractor, specialty Well Drilling | GEOWEDI796O8 | Sep 2027 | (509) 929-9463 |
| Stanwood | A-1 Drilling & Digging INC | Registered contractor, specialty Domestic Pump | 1DRILDD786CQ | Mar 2028 | (360) 652-8333 |
| Tacoma | Richardson Well Drillng Co INC | Registered contractor, specialty Well Drilling | RICHAW*321OB | Jun 2028 | (425) 743-4432 |
| Toledo | Williams Water Well's INC | Registered contractor, specialty Well Drilling | WILLIWW859KQ | Feb 2027 | (360) 864-2951 |
| Valleyford | J & J Well Drilling INC | Registered contractor, specialty Well Drilling | JJWELJW843DS | Mar 2028 | (509) 928-2038 |
| Woodinville | Cascade Drlg/lp A Ltd Ptshp/de | Registered contractor, specialty Well Drilling | CASCADL915O8 | Oct 2027 | (425) 485-8908 |
| Yakima | Oasis Drilling LLC | Registered contractor, specialty Well Drilling | OASISDL914LH | Jun 2027 | (509) 459-4406 |
| Yelm | Aw Drill & Pump LLC | Registered contractor, specialty Well Drilling | AWDRIDP768BR | Jun 2028 | (701) 441-0767 |
Questions
How do I check that a well pump installer is registered in Washington?
The Washington State Department of Labor & Industries publishes the list of registered water well and pump firms. We read it on October 10, 2026; every name in the table below comes from it, with the registration types the state gives. Ask any business for its registration number before work starts.
How many registered well pump businesses are there in Washington?
The Washington State Department of Labor & Industries list we read shows 65 businesses or licensees based in Washington whose registration covers well pump work, and 34 that hold a water well drilling registration or class. Firms licensed only for monitoring, geotechnical or geothermal work are left out.
Does Washington require private well owners to test their water?
Private wells are the owner's responsibility. The EPA says to test a private well every year. See our guide to how often to test.
Test your well water every year
The EPA says to test a private well every year for bacteria and nitrates, and no agency does it for you. Tell us when your water was last tested and we'll text you a month before the next test is due, with labs and state-listed well pros near you.
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