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California state directory

Well Drilling Contractors in California

DrillerDB tracks 1,050,358 water-well records across California, where completed wells average about 229 feet deep. Use the directory below to connect with licensed, insured drilling and pump contractors serving California, and review real local well data before you request a quote.

Reviewed byDrillerDB Editorial TeamLast updated
Contractors
479
Services
10+
State
CA

200 Contractors

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BC2 Environmental logo

BC2 Environmental

Active Driller
1150 W. Trenton Ave.
Orange, CA 92867
Water Well DrillingWell Maintenance & ServicingWell Abandonment / Sealing+5 more
Les Petersen Drilling & Pump Inc. logo

Les Petersen Drilling & Pump Inc.

Active Driller
5434 Old Redwood
Santa Rosa, CA 95403
Water system designWater system developmentWater system construction+17 more
Living Water Well Drilling & Pumps logo

Living Water Well Drilling & Pumps

Active Driller
3665 Lake Rd
Merced, CA 95340
Water well drilling (residential, agricultural, municipal, industrial)Well pump installation, repair, and serviceWell rehabilitation+19 more
American Pump Service logo

American Pump Service

Active Driller3.7 (3)
4824 N Malvern Ave
Sanger, CA 93657
Water well serviceWater well installationWater well repair and maintenance+1 more
Southern California Well Service logo

Southern California Well Service

Active Driller
11998 Stoney Peak Dr Unit 835
Ramona, CA 92128
Well DrillingResidential Well DrillingCommercial Well Drilling+6 more
ABC Liovin Drilling Inc logo

ABC Liovin Drilling Inc

Active Driller
1180 E Burnett St
Signal Hill, CA 90755-3442
Industrial Equipment SupplyCustom Equipment DesignInstallation Services+2 more
Anderson Pump Co logo

Anderson Pump Co

Active Driller
24719 Robertson Blvd
Chowchilla, CA 93610
Agricultural, Commercial, Dairy, and Domestic/Residential pump applicationsOn-site Fabrication and Machine shop services24-Hour Emergency Service+5 more
Cascade Environmental logo

Cascade Environmental

Active Driller
11442 N Woodside Ave
Santee, CA 92071
Environmental drillingGeotechnical drillingSite investigation+3 more
Fisch Bros Drilling Inc logo

Fisch Bros Drilling Inc

Active Driller
5001 Gravenstein Hwy N
Sebastopol, CA 95472-2100
Free well site inspectionsWater well drillingFree estimates
Fisch Bros. Drilling logo

Fisch Bros. Drilling

Active Driller
5000 CA
Philo, CA 95466
Residential water well drillingRotary air and mud well drillingPump installation and repair+1 more
Fisch Drilling & Pump Inc logo

Fisch Drilling & Pump Inc

Active Driller
3150 Johnson Rd
Hydesville, CA 95547
Linears & PivotsPump ServicesPublic Water Systems+3 more
Gregg Drilling, LLC logo

Gregg Drilling, LLC

Active Driller
2726 Walnut Ave
Signal Hill, CA 90755
Environmental drilling and testingGeotechnical drilling and testingMarine drilling and testing+2 more
Guardino Well Drilling logo

Guardino Well Drilling

Active Driller
4825 Croy Rd
Morgan Hill, CA 95037-9419
Air Rotary, Mud Rotary and Casing Hammer DrillingMonitoring Wells and Test HolesGround Source Heat Pump Well Installations+6 more
Penecore Drilling logo

Penecore Drilling

Active Driller
220 N East St
Woodland, CA 95776
Direct Push / GeoprobeHollow Stem AugerAuger Drilling+2 more
Peters Drilling & Pump Service logo

Peters Drilling & Pump Service

Active Driller
1005 Idaho Maryland Rd
Grass Valley, CA 95945
Well drillingWell deepeningWell reconstruction+9 more
Weeks Drilling & Pump Company Inc logo

Weeks Drilling & Pump Company Inc

Active Driller
6100 CA-12
Sebastopol, CA 95472
Well Drilling ServicesPump Service & RepairWater Treatment Systems+3 more
Well Industries Inc logo

Well Industries Inc

Active Driller
3282 State Highway 32
Chico, CA 95973-8735
Water well drillingIrrigation well installationWater well maintenance and repairs+5 more
American Well Drilling & Pump Service logo

American Well Drilling & Pump Service

Active Driller
975 Bald Hill Rd
Newcastle, CA 95658
Well drilling (foundation, water, and trenching)Well reconstruction and deepeningPump system installation+3 more

DrillerDB Well Data for California

Our database holds 1,050,358 water-well records across California, with completed wells averaging about 229 feet deep. These are real, verifiable construction records you can review before you hire - depths, locations, and details you can share with any contractor.

Well Drilling Costs & Permits in California

A complete private well system in California typically runs $15,000-$45,000, depending on depth, geology, and the pump and treatment you choose. On permitting: County Environmental Health (DWR Bulletin 74). A typical project takes 2-4 months from planning to usable water.

Official California resources

Water Well Services Available in California

Typical services offered by licensed contractors in this state.

  • Residential Water Well Drilling
  • Agricultural Irrigation Wells
  • Vineyard & Orchard Wells
  • Well Pump Repair & Replacement
  • Emergency Well Service
  • Water Quality Testing
  • Well Rehabilitation & Deepening
  • Groundwater Monitoring Wells
  • Drought Response Drilling
  • Well Abandonment Services

California Water Well Guides

California Well Owner Guide

Complete guide for homeowners: costs, permits, timeline, water quality, and maintenance tips for private wells in California.

Open guide

California Drilling Guide

Professional driller resource: licensing requirements, geology, aquifers, construction standards, and compliance in California.

Open guide

California Well Records Map

Search millions of water-well records across California: locations, depths, and construction details you can share with any contractor.

Open well map

Geological & Drilling Conditions in California

California's varied terrain ranges from coastal valleys to mountain regions, with significant seismic considerations. Drillers often navigate complex geological formations and strict environmental regulations.

These conditions show up directly in our well records: across the 1,050,358 California wells in the DrillerDB database, completed depth averages about 229 feet. A local driller will read the formations under your specific site to plan casing, grouting, and target depth.

Frequently Asked Questions About Well Drilling in California

Across the 1,050,358 California well records in the DrillerDB database, completed wells average roughly 229 feet deep. Actual depth varies widely by location and geology, so a local driller will size your well to the aquifer beneath your property.

A complete private well system in California typically runs $15,000-$45,000, depending on depth, geology, and the pump and treatment you need. Get written estimates from at least two licensed contractors, since per-foot drilling rates and site access drive most of the variation.

Permitting in California: County Environmental Health (DWR Bulletin 74). A licensed water well contractor can confirm the exact requirements for your county and handle the paperwork as part of the job.

From planning to usable water, a California project typically takes 2-4 months. The drilling itself is usually only a few days; permitting, water testing, and scheduling account for most of the timeline.

Choose a state-licensed, insured contractor with local California experience. Verify their license, ask for references on recent nearby projects, and get multiple written estimates. The directory above lists verified contractors serving California.

Find Well Drillers in Neighboring States

Drilling conditions and contractors near the California border.

Ready to Get Started?

Connect with licensed water well contractors in California today. Get free quotes and expert advice for your drilling project.

Searching Outside California?

Use the national directory to browse licensed water well contractors and per-state well data across the United States.

National directory