Top Rated Water Well And Pump Contractors Serving Marin County, CA

If you really care about choosing a quality water well and pump contractor, we’re here for you. Here’s your access to the best water well and pump contractors serving Marin County including 94901, 94941, 94903, 94947 and 94945. These water well and pump specialists provide well water treatment and well pumps, and they also work on submersible water pumps, pond pumps and electric water pumps. For 22 years we’ve conducted the most accurate ratings and deepest research of local contractors, so you’ll be confident in choosing.

  • Last Updated Jun 03, 2026
  • 8,461 people sourced companies in Water Wells & Pumps
    1,400 Verified Water Wells & Pumps Customers Surveyed
1,400
8,461
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Weeks Drilling & Pump Company has been providing a complete range of water supply solutions for residential, commercial and municipal customers throug...
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Main Services

Water Wells & Pumps
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Additional Services

Water Well Drilling, Pump System Service and Installation, Water Treatment, Public Water Systems

Coverage Areas

Sonoma County, Marin County, Mendocino County, Napa County, Lake County

Family Owned
Family Owned
Walk-Ins Welcome
Walk-Ins Welcome
Established in 1906
Established in 1906
Emergency 24/7
Emergency 24/7
  • Quick Connect
6100 Sebastopol Ave, Sebastopol, CA 95472
Hours CLOSED NOW
License:
177681
Learn how to choose a Water Wells & Pumps and more…
Diamond Certified Water Well And Pump Contractors In Marin County

Diamond Certified water well and pump contractors serving Marin County are rated an average of 4.6 out of 5 stars based on 756 reviews of 8 rated water well and pump contractors.
Diamond Certified water well and pump contractors in Marin County Avg. Star Rating.

We make you an expert at choosing a high-quality water well and pump contractor in the area.

For those who love quality local water well and pump contractors.

Within our Diamond Certified Resource:

You’ll love and refer your friends and family to your new area Diamond Certified water well and pump contractor. They provide expert services, including pump system design, pump upgrades, well casing repair, pump troubleshooting, water well testing, and more.

To qualify for Diamond Certified, each contractor must score Highest in Quality and Helpful Expertise (a 90+ on a 100 scale) and pass all our credential-based ratings. Diamond Certified water well and pump contractors that serve residents include Weeks Drilling & Pump Company.

Every Diamond Certified water well and pump contractor that serves residents in 94901, 94941, 94903, 94947 and 94945 performs various specialties, including pump repair, pump installations, well abandonment, well inspections, and well maintenance.

How to Choose a Quality Water Well And Pump Contractor for Your Family
  1. Click the name of the contractor to get to their Diamond Certified Company Report page.
  2. Watch their Diamond Certified Video Profile and other videos that we’ve created for you.
  3. Read their verbatim client survey responses and our researched articles.
  4. Get helpful water well and pump tips if they are a Diamond Certified Expert Contributor.
  5. Call or email them to schedule an appointment.
Become a Diamond Certified Preferred Member and Join Your Neighbors

If you love quality local contractors, this is for you. Become a Diamond Certified Preferred Member (always free) and get a double performance guarantee, extra guides and tips, our annual Diamond Certified Directory, and more.

Your Diamond Certified Resource. We make you an expert at choosing.

We make you an expert at choosing local companies by giving you the most accurate ratings, deeply researched company reports and Diamond Certified Guide of all Resource Guides, which cover 70+ industries in the Auto, Home, Health and Personal service categories. Each guide contains 16 key articles that are separated into “Before, During and After the Job” tabs. These are written to guide you through each phase of hiring, starting, managing and ending a job in that specific type of service.

Diamond Certified Resource Compared to Crowd-Sourced Review Sites

Diamond Certified Resource’s ratings of local companies are based on surveys of only verified real customers, so they are the most accurate. This beats crowd-sourced review sites like Yelp, Angi or even Google that are plagued with fake, manipulated, cherry-picked and non-customer reviews, which produce inaccurate and often inflated rating scores.

Diamond Certified Resource’s deeply researched reports of top rated Diamond Certified companies include everything you need to see to be very confident in choosing a top rated local company. Each company report includes detailed quality ratings and scoring, verbatim customer survey responses, a profile video, a company story video, a capabilities table, a photo gallery, researched articles, unique expert contributions from the company’s owner, and more. This beats crowd-sourced review sites that solicit companies to “claim their business listing” and add any type of info to their profiles. This sounds good, but it has led to company profiles that are littered with false claims and incomplete info.

Map of Marin County, CA

Marin County was founded in 1775, and today, your 252,409 neighbors use water well and pump contractors for submersible water pumps, well water filtration systems, well water treatment, well pumps, water well testing, and more.

Frequently Asked Questions for Water Wells & Pumps in Marin, CA
Q: What are clients of Diamond Certified water well and pump contractors saying about contractors in Marin County, CA?
A: Verified Weeks Drilling & Pump Company Customer, 1 of 708
"There aren't many people in the neighborhood who have wells. They are the only company that service four counties for this type of need. They do great well services and also drill new wells. I would only use them, honestly. I would not consider using anyone else. I actually don't think there is any other company that specializes in pumping and well services out here. Also, it is good to note that I wouldn't be doing the survey if it wasn't for Weeks Drilling & Pump Company, but they deserve having it done. They showed up right away and that is what you need with these companies. When your system goes down, you need a reliable company to show up." - Gordon G.
All Survey Responses for Weeks Drilling & Pump Company
Q: What are some of the most popular brands that Diamond Certified water well and pump contractors use when working with Marin County residents?
A: Diamond Certified water well and pump contractors use top-quality brands like Well-X-Trol, Flotec, Simer, Franklin Electric and Cycle Stop Valves.
Q: What types of pond pumps do water well and pump contractors offer?
A: Water well and pump contractors offer a variety of pond pumps including submersible pumps, external pumps, and solar-powered pumps. Submersible pumps are designed to function while completely submerged in water, making them a suitable choice for larger, deeper ponds. External pumps, on the other hand, are installed outside the pond and are an ideal choice for smaller, shallower ponds. Solar-powered pumps are a cost-effective and environmentally-friendly option that uses solar energy to operate, suitable for ponds located in sunny areas. These pumps can vary in flow rate, energy efficiency, and noise level, depending on the specific needs of the pond.
Q: Can Diamond Certified water well and pump contractors work with Goulds Water Technology products and similar items so I can get well water treatment in Marin County?
A: Yes, Diamond Certified water well and pump contractors can work with Goulds Water Technology products and similar items for well water treatment in Marin County.
Q: What did people search for when they wanted to find the best quality water well and pump contractors in Marin County?
A: Well Pumps
Sump Pumps
Pond Pumps
Water Well Testing
Water Wells
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