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Verified Reviews for Well And Pump Service pros in Walnut, CA

*The Angi rating for Well And Pump Service companies in Walnut, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Well And Pump Service needs.

*The HomeAdvisor rating for Well And Pump Service companies in Walnut, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Well And Pump Service needs.

Last update on July 17, 2026

Find Well and pump technicians in Walnut

Avatar for Pump Systems Unlimited, Inc.
Pump Systems Unlimited, Inc.
4.8(
12
)
Well Pump - Install or ReplaceWell Pump - Repair or Service

Serving Walnut, CA and surrounding areas

In business since 2012

Free estimates

"Hector did a well site evaluation. He is professional and he understands that I know very little about pump systems. I would recommend him. Very reasonable price."
Response time1 day
Recommended by81%of homeowners
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Avatar for AAG Pump Services
AAG Pump Services
5.0(
12
)
Well Pump - Install or ReplaceWell Pump - Repair or Service

Serving Walnut, CA and surrounding areas

In business since 2020

Free estimates

Small jobs welcome

"This is feedback regarding AAG PUMP SERVICES. My wife and I were very pleased and impressed by the service provided. Armandoâ s expertise in fixing our front water fountain was greatly appreciated. He quickly diagnosed the problem and professionally handled it. He genuinely cares about the job at hand, is extremely knowledgeable, reliable and we would highly recommend him to anyone having issues with their wells. I will definitely retain his information for any future issues. Armando is an excellent representative for AAG Pump Services. Thank you for a job well done."
Response time3 hrs
Recommended by100%of homeowners
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Avatar for MightyServ
MightyServ
4.7(
385
)
Well Pump - Install or ReplaceWell Pump - Repair or Service

Serving Walnut, CA and surrounding areas

In business since 1963

Credit card accepted

"Very well. Me Gregg Castro was very efficient and explained what he was doing and installed the space Age Air UV Scrubber expertly. Have been a Canoga Heating Maintenance subscriber for 45 years."
Additional Photos
Additional Photos
heating and A/C
Recommended by95%of homeowners
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Avatar for Bob & Marc Plumbing Heating & Air
Bob & Marc Plumbing Heating & Air
4.5(
104
)
Well Pump - Install or ReplaceWell Pump - Repair or Service

Serving Walnut, CA and surrounding areas

In business since 1989

"When they came to the house, they were very honest.  I had a plumbing problem that they could’ve easily told me you need to do it now, but they really worked with me and kind of advised me on what I need to do long-term if I couldn’t do the work now and it worked and helped me save a bundle of money.  The quality of the work have always been great."
Recommended by89%of homeowners
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Avatar for Lifeline Water Heating
Lifeline Water Heating
5.0(
9
)
Well Pump - Install or ReplaceWell Pump - Repair or Service

Serving Walnut, CA and surrounding areas

In business since 2023

Free estimates

Emergency services offered

"Mario a professional and super friendly helped with my water pipe problem and he fixed it fast"
Response time40 mins
Response rate92%
Recommended by100%of homeowners
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Avatar for Service All-Stars Plumbing Heating and Air
Service All-Stars Plumbing Heating and Air
4.3(
179
)
Well Pump - Install or ReplaceWell Pump - Repair or Service

Serving Walnut, CA and surrounding areas

In business since 2013

Free estimates

Emergency services offered

"It went fine and they were very professional. The owner of the company is very responsive, they were reachable and figured out what was wrong. The customers came first and they responded very well."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+76

Recommended by87%of homeowners
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Avatar for Express Plumbing and Remodeling
Express Plumbing and Remodeling
5.0(
6
)
Well Pump - Install or ReplaceWell Pump - Repair or Service

Serving Walnut, CA and surrounding areas

In business since 2008

Free estimates

Emergency services offered

"We recently purchased our 3rd home and our copper lines in our entire 5000 sq ft home needed to be repiped . I reached out to express plumbing after a referral from a colleague . I can not express enough my comfort and trust I felt with this team . My wife had so many changes and adjustments and they always listened and executed every time .Quality craftsmanship, on time everyday and a pleasure to work with . There are many plumbers out there that claim to be the best but look no further, I ensure you your in great hands"
Plumbing
Plumbing
Plumbing
Plumbing
Additional Photos

+10

Recommended by100%of homeowners
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Avatar for Pump Systems Unlimited Inc.
Pump Systems Unlimited Inc.
4.5(
4
)
Well Pump - Install or ReplaceWell Pump - Repair or Service

Serving Walnut, CA and surrounding areas

In business since 2004

Free estimates

Emergency services offered

"I used this company for three years. They knew what they're doing. They respond really quickly and everything went well. They work really good."
Recommended by100%of homeowners
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Showing 1-10 of 29
Wells and Pumps questions, answered by experts

You should check water pressure twice a year to ensure there aren’t any irregularities and that it isn’t too high. It’s also smart to check it any time you notice symptoms of high water pressure (like banging pipes, inconsistent water flow, and leaky fixtures). Similarly, if you live in an area that’s prone to water pressure fluctuations due to municipal supply changes, elevation, or seasonal temperature shifts, check it more frequently. You can buy an affordable water pressure gauge and check the water pressure yourself.

No. Well pump replacement is not recommended as a DIY project, particularly if you have a deep well and a submersible pump. Plumbing and electricity are best left to the pros, especially when something like your well pump includes both. Even when troubleshooting your pump, it pays to have a partner standing by for your assistance and safety.

Common signs that your well pump is failing include fluctuating or consistently poor water pressure, sputtering water from faucets, or a complete loss of water. Other indicators are unusual noises coming from the pump, the pump running continuously, dirty or cloudy water, or a sudden, unexplained spike in your utility bills. While some issues, especially after a power outage, might be resolved by simply restarting the power or priming the pump, persistent problems suggest a more serious issue. If you notice any of these red flags, it is recommended to call a professional well pump service to inspect the system and determine whether it needs to be repaired or replaced.

If you notice any changes to the water coming from your well, consider that a sign to get a well inspection. For example, if the water is foul-smelling, bad-tasting, cloudy, or discolored, you should call a pro. It’s also a good idea to schedule an inspection if you observe a loss of water pressure, broken equipment, loss of well capacity, or other unusual signs.

Yes, it is possible to drill a well by hand, but it calls for a good deal of physical labor. Drilling a well by hand is best suited for softer soil, and it may not be possible through rockier terrain. For wider and deeper holes, companies with professional equipment make the job much easier.

The Walnut, CA homeowners’ guide to well and pump services

From average costs to expert advice, get all the answers you need to get your job done.

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