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Well Pump & Well Drilling Costs in the Flathead Valley (2026)

Here are typical price ranges homeowners see for well work around Kalispell, Whitefish, Columbia Falls, Bigfork and the rest of Flathead County. Every well is different — depth, geology and access change the price a lot — so treat these as ballpark figures. The only real price is a quote from a licensed local professional.

These are estimates, not quotes. Prices change with well depth, parts, season, distance and access. Always ask what's included.

Typical price ranges

Service	Typical range	Notes
Service call / diagnosis	About $100–$250	Often credited toward the repair.
Pressure switch replacement	About $150–$400	One of the most common no-water fixes.
Pressure tank replacement	About $800–$2,000	Depends on tank size and plumbing.
Control box / capacitor repair	About $200–$600	3-wire submersible pumps.
Submersible pump replacement	About $1,500–$4,000+	Deeper wells, larger pumps and new wire or pipe cost more.
Constant-pressure pump system	About $2,500–$5,500+	Steadier pressure; higher upfront cost.
Thawing frozen lines or switch	About $150–$800	Depends on where it's frozen and access.
Well inspection & flow test	About $300–$700	Lab water testing may be extra.
Lab water test	About $30–$300	Basic bacteria/nitrate tests are cheapest; full panels cost more.
Shock chlorination	About $150–$500	Disinfects the well after bacteria or repairs.
Water softener / iron filter	About $1,000–$4,000+	Size depends on a water test.
New household well (drilling, casing, pump system)	Often $15,000–$40,000+	Depth is the biggest factor; deep or bedrock wells can cost more.
Well deepening or rehab (incl. hydrofracturing)	About $2,000–$10,000+	Can restore yield instead of drilling new.

What drives well costs in the Flathead

• Depth. Drilling is priced largely per foot, and the pump must be sized to lift water from the depth it's set at.
• Geology. Gravel, clay and bedrock drill at very different speeds.
• Access. Steep, wooded, snowy or remote lots take more time and equipment.
• What else needs replacing. Old wire, drop pipe, check valves or a tired pressure tank are often replaced at the same time.
• Season. Spring through fall is busiest for drillers; emergency winter calls can cost more.

How to save money

• Fix short-cycling or a failing pressure tank early — it protects the pump.
• Protect the pressure switch and lines from freezing.
• Add surge protection for pump controls.
• Look up your well log (Montana GWIC) so the pro knows the depth and pump setting before arriving.
• Get two quotes for big jobs like a new well or pump system.

Related: well pump repair · pump replacement · well drilling · well FAQ