Well Drilling Cost in Spokane, WA (2026 Guide)
Well drilling cost depends mostly on depth and geology, and Spokane County has both glacial gravel and hard basalt within the same service area. This guide lays out real, sourced price ranges for drilling per foot, pump installation, and a complete well system.
Well Drilling Cost Per Foot in Spokane County
Washington statewide drilling cost runs roughly 28 to 65 dollars per foot, averaging around 42 dollars per foot. That statewide figure hides a lot of local variation, though, and Spokane County spans nearly the whole range depending on what the driller actually hits underground.
In glacial or alluvial ground, the gravel and sand common near the Spokane Valley-Rathdrum Prairie Aquifer, per-foot cost typically runs 18 to 35 dollars. In basalt, common through much of the county outside the valley floor, cost climbs to roughly 30 to 55 dollars per foot. In hard rock, drilling gets slower and more expensive still, running 40 to 65 dollars per foot. Since total drilling cost is depth multiplied by per-foot rate, a shallow glacial well and a deep basalt well can differ by tens of thousands of dollars even on similarly sized properties.
| Geology | Cost Per Foot |
|---|---|
| Glacial or alluvial (gravel, sand) | $18-$35 |
| Basalt | $30-$55 |
| Hard rock | $40-$65 |
Statewide Washington average, all geology types blended: roughly $28 to $65 per foot, averaging near $42.
Complete New Well System Cost
Drilling per foot is only one line item. A complete new well system also includes casing, a submersible pump, a pressure tank, and basic electrical hookup, and that full package is what most Spokane-area homeowners actually need priced out.
Local data for a typical Spokane-area residential well system runs 10,000 dollars on the low end, around 16,000 dollars on average, and up to 28,000 dollars on the high end. A separate Washington-specific guide gives a broader complete-system range of 10,000 to 25,000 dollars. Reconciling both sources, the planning figure used consistently on this site is 10,000 to 20,000 dollars for a complete residential well system in typical Spokane-area glacial or moderate geology, with an honest upper bound of 25,000 to 30,000 dollars or more for deep or hard-rock basalt sites. A narrower Spokane-specific estimate of 3,750 to 15,300 dollars also exists, but its methodology reads as drilling-only rather than a complete system, so treat it as a partial figure, not a competing total.
| Scenario | Typical Range |
|---|---|
| Complete system, typical glacial/moderate geology | $10,000-$20,000 |
| Complete system, deep or hard-rock basalt site | $25,000-$30,000+ |
| Broader Washington-specific complete-system range | $10,000-$25,000 |
Well Pump Installation and Replacement Cost
Pump installation is priced as its own line item, separate from drilling and casing. Washington-specific pricing runs 1,000 to 2,800 dollars for the pump itself and its installation, plus 400 to 1,500 dollars for a pressure tank. National aggregator ranges for a standard submersible install, broadly consistent with the Washington figures, run 1,500 to 4,000 dollars all-in. See the pump repair and installation page for the difference between a repair and a full replacement.
Well Inspection and Flow Testing Cost
A standard well inspection with a flow test in the Spokane area commonly runs a few hundred dollars, with water quality lab testing priced separately depending on how many contaminants get tested for. See the inspection and flow testing page for what a standard visit actually covers.
Why Costs Vary So Much
A handful of factors explain most of the spread across every range above.
Geology and depth drive the biggest swings, since glacial gravel drills faster and cheaper than basalt or hard rock, and total drilling cost is depth multiplied by per-foot rate. Site access matters too: a rig that has to navigate a tight driveway, steep grade, or heavily wooded lot takes longer to set up than one with open, level access. Casing diameter affects both material and labor cost, and pump size has to match the well's tested flow rate rather than a generic default. Dry-hole risk is the least predictable factor of all: if a first attempt does not find adequate water, a second attempt adds real cost that no upfront estimate can fully account for. Any real quote reflects a specific property's version of these factors, not a generic average pulled from a guide like this one.
Does Homeowners Insurance Cover Well or Pump Problems
Generally, no. Standard homeowners insurance typically covers sudden, accidental damage, such as a lightning strike frying a pump's electrical components, but not gradual wear, mechanical failure from age, or a well running dry from drought or overuse. Coverage language varies by insurer and by the specific cause of the problem, so check your own policy and ask your agent directly rather than assuming either way. This is general information, not insurance advice specific to your policy.
Every figure here is a range, not your price
Send your property details and a licensed local contractor will follow up with a quote based on your actual site and geology.
Cost Questions, Answered Straight
How much does it cost to drill a well in Spokane, WA?
A complete residential well system in the Spokane area, including drilling, casing, a submersible pump, and a pressure tank, most commonly runs 10,000 to 20,000 dollars, with harder basalt geology or unusually deep wells pushing costs toward 25,000 to 30,000 dollars or more. See the breakdown below for per-foot detail.
How much does it cost to drill a 200 foot well?
Drilling alone for a 200 foot well in the Spokane area, before pump and casing costs, commonly runs somewhere between 5,000 and 13,000 dollars depending on whether the driller hits glacial gravel, basalt, or harder rock along the way. Add the pump, tank, and electrical work for the full system total.
How much does well pump installation cost?
A submersible well pump installation, including the pump unit, wiring, and a pressure tank, typically runs 1,500 to 3,000 dollars for a standard residential depth, with deeper wells or larger pumps sometimes reaching 4,000 dollars or more. This is separate from the drilling and casing cost for a brand new well.
What does a complete new well system cost from start to finish?
A full new well system, meaning drilling, casing, a submersible pump, a pressure tank, and basic electrical hookup, most commonly totals 10,000 to 20,000 dollars in the Spokane area, with a realistic range up to 28,000 dollars or higher for deep or difficult basalt sites. Get a site-specific quote for your property.
Why does well drilling cost vary so much from one property to another?
The biggest cost drivers are depth and geology: glacial gravel and sand cost less to drill through than basalt or hard rock, which is common in parts of Spokane County outside the valley floor. Site access, casing diameter, pump size, and whether a second attempt is needed if a well comes up dry also affect the total.
Does homeowners insurance cover well or pump problems?
Generally no: homeowners insurance typically covers sudden, accidental damage, like a lightning strike frying a pump's electrical components, but not gradual wear, mechanical failure, or a well running dry from drought or overuse. Check your specific policy language, since coverage for well systems varies by insurer and by cause.
Most Spokane County wells are permit-exempt
See what the 5,000 gallon rule and Washington's streamflow restoration fee actually mean for your watershed.