Well drilling · Pumps & water systems · Well service & rehabilitation · Water treatment & filtration · Well decommissioning

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.

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At a glance

Ecology driller licenses
6 water well, 4 resource protection operators (license 1295, 1295, 1933, 1933, 2871, 2871, 2895, 3290, 3345, 3408) · verify with Ecology
L&I registration
H2OWEWS745MN · verify with L&I
L&I registration
H2OWEWS74343 · verify with L&I
L&I registration
H2OWEWS743M3 · verify with L&I
Address
205 N Park Ave, Deer Park, WA 99006
Other locations
  • Hayden office: 582 W Hayden Ave, Hayden Lake, ID 83835
  • Sagle office: 468945 Hwy 95, Sagle, ID 83860
Serves
Spokane County
Services
Domestic well drilling, Irrigation well drilling, Well deepening, Well decommissioning, Sand bailing & well cleanout, Well redevelopment & rehabilitation, Pump installation, Pump repair & replacement, Constant-pressure (VFD) systems, Pressure tanks & switches, Cisterns & storage tanks, Flow & yield tests, Sediment filters & sand separators, Iron & manganese treatment, Water softeners, UV disinfection, Reverse osmosis, 24/7 emergency service

Public record

No L&I violations, bond lawsuits, tax warrants or suspensions in the last 5 years.

Checked Oct 25, 2026 with Washington L&I. Full record: H2OWEWS745MN, H2OWEWS74343, H2OWEWS743M3. What this covers.

H2O Well Service is a well drilling and pump company founded in 1976. Its main office is in Hayden, Idaho, with a second Idaho office in Sagle and a Washington branch at Deer Park in Spokane County. The company says it serves North Idaho and Eastern Washington, and names Spokane, Coeur d’Alene, Hayden, Sandpoint and Deer Park.

Drilling. It drills residential, commercial and agricultural wells, including irrigation wells. It also deepens wells, cleans and rehabilitates wells to remove mineral scale and bacteria, and decommissions unused wells. It says it handles permitting and offers a small rotary rig that fits a 10-by-10-foot pad for tight lots. Commercial work listed includes geothermal, monitoring, cathodic protection and grounding wells.

Pumps and storage. The pump division designs and installs submersible pump systems, lake pumps, constant-pressure (VFD) systems, and pressure and storage tanks, and repairs existing systems. It runs flow and drawdown tests for real estate sales and low-yield wells, and builds reservoirs and cisterns, solar and generator-backed systems, and hand pumps. It advertises 24/7 emergency pump repair at (800) 772-4901.

Water treatment. After testing a well’s water, it installs iron and manganese filters, sulfur (hydrogen sulfide) treatment, water softeners, UV disinfection, reverse osmosis and sediment filtration.

Licensing. Ecology’s driller search lists several operators at the company holding water well and resource protection licenses. L&I lists contractor (well drilling), electrical and plumbing registrations. The company publishes its WA contractor license, H2OWEWS745MN, and UBI 606 239 210.