California Water Well Service and Repair Contractors

Find qualified Water Well Service and Repair contractors in California using our contractor lookup tool. Learn more about NGWA Contractor Certifications here.

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Moorman's Water Systems

Contractors Company
2120 Wilcox Rd
Stockton, CA 95215-2312
(209) 931-3210

Water Tech Systems

Contractors Company
PO Box 446
San Ramon, CA 94583-0446
(925) 820-6875

Martell Water Systems Inc

Contractors Company
1818 Loveridge Rd
Pittsburg, CA 94565-4111
United States
(800) 498-4282

Confluence Technical Services Inc

Contractors Company
774 Rubier Way
Rio Vista, CA 94571
(707) 639-7709

Clayton Bartholomew

Contractor Individual
506 De Carlo Ave
Richmond, CA 94801
(510) 357-3677

Ryan Lea

Contractor Individual
2100 Goodyear Road
Benicia, CA 94510
(925) 313-5800

Rumsey-Lang Well Drilling & Pumps

Contractors Company
PO Box 1021
Shingle Springs, CA 95682
(530) 677-5361

Geocentric Drilling Inc

Contractors Company
1980 S River Rd Ste E
West Sacramento, CA 95691
(916) 304-2665

Huckfeldt Well Drilling Inc

Contractors Company
994 Kaiser Rd Ste B
Napa, CA 94558-6224
(707) 255-7923

Worshams Pump Co

Contractors Company
4844 Cole Rd
Vacaville, CA 95688-9618

Oakville Pump Services

Contractors Company
2310 Laurel St Ste 1
Napa, CA 94559
(707) 944-2471

McLean & Williams Inc

Contractors Company
878 El Centro Ave
Napa, CA 94558-1955
(707) 255-6450

Larbre Well Drilling & Pumps Inc

Contractors Company
18715 Arnold Dr
Sonoma, CA 95476-5201
(707) 996-1819

Arolo Co

Contractors Company
424 Payran St Ste A
Petaluma, CA 94952-5920
(707) 762-4028

Wildheron Drilling

Contractors Company
6558 Lonetree Boulevard Suite #101
Rocklin, CA 95765
(916) 625-3807

Frequently Asked Questions

How do I properly maintain my water well?

Small problems can often be identified by performing maintenance before they become costly, inconvenient situations. This is similar to performing routine maintenance on a motor vehicle. If you have the oil changed at specified intervals, the engine will operate reliably much longer than if you do not. Do not become stranded without water over the relatively small cost of an annual service call—the cost of a repair call could be much higher. At a minimum, wells should be evaluated annually by a licensed or certified water well systems professional.

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What is an annual well inspection and why is it important?

A properly constructed and maintained household-supply well will provide you with many years of quality service. The National Ground Water Association recommends routine annual maintenance checks to ensure the proper operation of the well and prolong its years of service, as well as monitor the water quality.

Routine inspection of a water well system can help ensure it is operating properly, prolong its useful life, and protect your investment. Most importantly, inspections can protect your health by discovering issues that could result in water quality problems presenting a health risk.

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How do I hire a water well service contractor?

Prior to selecting a water well contractor for a job, it is a good idea to obtain information about several contractors in the area before making a choice. Here are some considerations:

  • Is the contractor licensed by the state? (Not all states require licensing.)
  • Is the contractor certified through the National Ground Water Association? The highest level a contractor can achieve is MGWC (Master Groundwater Contractor), passing all specialty NGWA certification exams and a general exam.
  • Does the contractor submit well logs?
  • Does the contractor have adequate equipment in good condition to do the job?
  • Does the contractor have adequate liability and workers’ compensation insurance to protect you?
  • Is the contractor familiar with applicable health and safety codes?
  • What is the contractor’s reputation with previous customers?
  • Will the contractor furnish a written contract specifying the terms and conditions of the job?
  • Is the contractor a member of the National Ground Water Association? Does he have a current NGWA sticker on his truck? NGWA members support the industry, have access to new technology and improved approaches, are dedicated to quality of workmanship, and promote and protect the groundwater resource. They know their stuff and will work with you to get the job done right. You can contact the NGWA customer service department at (800) 551-7379 or our “Contractor Lookup” for a list of member contractors in your area.

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California Groundwater and Water Well Statistics

Few states can accurately or confidentially determine how many residential wells are in place. For each region, the American Housing Survey by the U.S. Census provides regional data.

California is found in the West, along with these other states: Alaska, Hawaii, Washington, Oregon, California, Idaho, Utah, Nevada, Arizona, New Mexico, Colorado, Wyoming, and Montana.

The last American Housing Survey Census indicates this region had 1,540,0002 households served by residential wells, with an average of 2.973 persons per household. The USGS estimates the population of self-supplied water supply users in California to be 1,440,000 for which groundwater is 85% of their water source.

  • 2,081 community water systems use groundwater for 7,286,000 people
  • 1,393 non-community, non-transient water systems use groundwater for 371,400 people
  • 2,874 non-community, transient water systems use groundwater for 603,200 people
  • 59,500 irrigation wells used serving 23,600 farms and 3,860,000 acres

Water Well Service and Repair Articles and Resources

Homeowner's Maintenance Checklist: Free Printable Download Regular water well system maintenance is important. Knowing and practicing the basics of regular well maintenance can reduce risks to your water supply and prevent costly and inconvenient breakdowns.

Some Common Mistakes Well Owners Make Regarding Their Wells and Equipment By Gary L. Hix, R.G., CWD/PI As a private water well contractor and well inspector for many years, I had the opportunity to observe and document a number of mistakes private well owners made to their wells and water systems. Some modifications were almost comical, while others I considered outright dangerous for the homeowner and […]