Central Valley
Alluvial sand and gravel can drill faster, but casing and water-level conditions still vary by parcel.
Usually lower drilling resistanceAll Places in California
Showing Places 281-290 of 401
Aqua Engineering
★★★★☆
4.1
(8)
📍 950 Mission St, San Miguel, CA
Licensed
Pump Systems Unlimited, Inc.
★★★★★
5.0
(3)
📍 750 N Batavia St Suite I & J, Orange, CA
Licensed
Big River Drilling LLC
★★★★☆
4.0
(9)
📍 1485 W Wood Ave, Riverdale, CA
Licensed
Johnson Drilling Co
★★★☆☆
3.5
(16)
📍 23489 E E Kings Canyon Rd, Reedley, CA
Licensed
Watson Well
★★★★☆
4.5
(41)
📍 2101 Howard St, Eureka, CA
Licensed
Grewe Bryant Pump Service
★★★★☆
4.4
(12)
📍 1156 Industrial St, Rosamond, CA
Licensed
American Well Drilling & Pump Service
★★★☆☆
3.8
(20)
📍 975 Bald Hill Rd, Newcastle, CA
Licensed
Living Water Well Drilling & Pumps
★★★★☆
4.5
(30)
📍 3665 N Lk Rd, Merced, CA
Licensed
Fisch Drilling & Pump, Inc.
★★★★☆
4.4
(11)
📍 3150 Johnson Rd, Hydesville, CA
Licensed
Jerry & Don's Yager Pump-Well
★★★☆☆
3.8
(14)
📍 1290 Bodega Ave, Petaluma, CA
Licensed
Plan a residential well in California
WDF planning range for a complete residential system near the statewide domestic-well record average. County rules, casing, access and hard rock can move a quote outside it.
Planning range$6,800–$11,000USD
Depth referenceAbout 274 ftNearby records are more useful
Ground patternMostly soft / mixedConfirm at the property
How the estimate works
Depth is only the first number
The range is calculated from government well records or depth guidance and the ground conditions commonly encountered in the area. It is not a published government price and it cannot predict whether a specific bore will be dry, unusually deep or difficult to reach.
Ask every bidder for one complete-system total. It should identify drilling, casing, grouting, pump, pressure tank, electrical work, permit or filing charges, water testing and restoration separately.
1Local recordsLikely depth
+2Ground conditionsPer-foot difficulty
+3Full scopePump, casing & permits
=Planning band$6,800–$11,000
Local cost drivers
Why California quotes vary by area
Coastal basins
Layered sediments and local groundwater rules make county records especially important.
Site-specificSierra foothills and mountain areas
Granite and fractured rock can slow drilling and increase the per-foot rate.
Higher hard-rock riskVerify the people doing the work
Hire a California contractor with the CSLB C-57 Well Drilling classification and confirm that the licence is active for the company named on the quote.
Open the licence lookup guide →Confirm the permit path
Well permits and setback reviews are commonly handled locally. The driller should confirm the county environmental-health process and file the required well-completion report.
Review permit guidance →Quote checklist
Compare the same scope—not just the headline price
- Licence and insurance: match the name on the proposal to the current public record.
- Depth and per-foot terms: record the included depth, overage rate and dry-hole terms.
- Complete system: separate drilling, casing, grout, pump, tank, wiring, permit, test and restoration.
- Water and workmanship: ask about yield testing, disinfection, laboratory testing and written warranties.
The directory above currently contains 401 contractor listings serving California.
Frequently asked questions
California well-drilling questions
How much does it cost to drill a well in California?
WDF’s 2026 planning range is $6,800–$11,000 USD. WDF planning range for a complete residential system near the statewide domestic-well record average. County rules, casing, access and hard rock can move a quote outside it.
How deep is a residential well in California?
The reference point used here is about 274 ft. A nearby completion record is more useful than a broad average, and only drilling confirms the final depth and yield.
Do I need a licensed well driller or a permit in California?
Hire a California contractor with the CSLB C-57 Well Drilling classification and confirm that the licence is active for the company named on the quote. Well permits and setback reviews are commonly handled locally. The driller should confirm the county environmental-health process and file the required well-completion report.
What should a complete well quote include?
Compare drilling, casing, grout, pump, pressure tank, electrical work, permit or filing fees, yield testing, disinfection, laboratory testing, restoration, over-depth pricing and dry-hole terms on separate lines.
Primary sources
Where these facts come from
Depth, licensing and permit statements are checked against government records. Cost figures are WDF planning estimates derived from those records and the published 2026 cost model.
Showing Places 281-290 of 401
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