Top-rated water softener pros.

Best water softener pros near Foster City, CA

Enter your zip and get matched with up to 5 pros

Need a pro for your water softener service project in Foster City, CA?

Select your specific project to find the pro for you.

Verified Reviews for Water Softener Service pros in Foster City, CA

*The Angi rating for Water Softener Service companies in Foster City, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Softener Service needs.

*The HomeAdvisor rating for Water Softener Service companies in Foster City, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Softener Service needs.

Last update on November 03, 2025

Top-Rated Water softener pros in Foster City - Updated Nov 2026

Avatar for Facilities Plumbing & Drain
Facilities Plumbing & Drain
4.8(
52
)
Water Treatment & Purification System - Repair or Service

Serving Foster City, CA and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"Robert came from an Oakland job to check our sump pump which was not working. We needed a new one as water was building under our house and rains were coming. He replaced it and all the water went out. He was very professional, wore a mask. Would hire him again."
Starbucks 100-Gal Waterheater
Sediments inside supply line
3M 100,000-Gal
dual 3m filter install
3M 100,000-Gal

+44

Response time6 hrs
Response rate100%
75 neighbors recently requested a quote
Request Quote
Avatar for In & Out Plumbing & Construction Inc
In & Out Plumbing & Construction Inc
4.2(
79
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Foster City, CA and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"Found that the dispenser was damaged inside.  Could not fix.  Had to come back the next morning to fix leaking under the sink due to the work on the dispenser.  Re routed the water line so that we would still have water to the refrigerator but the join leaked so I had to turn it off at the valve.  The rerouting meant that I could not push back the sliding shelf that holds the supplies.  Had to remove it to be able to close the cabinet door.
"
San Francisco Sewer Line
Floor Drain
San Francisco Sewer Line
Floor Drain
San Francisco Sewer Line

+27

Response time1 day
Response rate99%
12 neighbors recently requested a quote
Request Quote
Avatar for Dr. Drain Plumbing and Rooter
Dr. Drain Plumbing and Rooter
5.0(
16
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Foster City, CA and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Was prompt and professional. Did the work quickly and well, and gave some advice on next steps. I’ll be hiring them again!"
Dr Drain
Checking gas leak
Drain pipes replacement
gas leak detector
Water heater replacement

+15

Response time9 hrs
Response rate89%
Recommended by100%of homeowners
Request Quote
Avatar for Hydro Works Well & Pump
Hydro Works Well & Pump
5.0(
7
)
Well Pump - Repair or Service

Serving Foster City, CA and surrounding areas

Approved

In business since 2004

Emergency services offered

Warranties offered

"Josh was informative, helpful, and clear on the work."
Completed Pump System
Flow Test
Pressure tank & controller
Panel Mounting
Pressure system

+3

Response time8 hrs
20 neighbors recently requested a quote
Recommended by100%of homeowners
Request Quote
Avatar for Quality Pump Service
Quality Pump Service
4.5(
50
)
Well Pump - Repair or Service

Serving Foster City, CA and surrounding areas

Approved

In business since 2010

Emergency services offered

Small jobs welcome

"This business operates with integrity and honesty which is difficult to find these days. I'd highly recommend them for any commercial or residential plumbing and water-well project or issues."
Response time5 hrs
11 neighbors recently requested a quote
Recommended by87%of homeowners
Request Quote
Avatar for Cisneros & Sons Plumbing Inc
Cisneros & Sons Plumbing Inc
5.0(
8
)
Water Treatment & Purification System - Install or Replace

Serving Foster City, CA and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

"I had my water heater installed by Octavio, and everything was absolutely perfect! He was professional, on time, and made sure the job was done right. The whole process was smooth and stress-free, and the quality was great. I’m extremely happy with the results and would definitely recommend him to anyone who needs plumbing work done."
Response time4 hrs
Response rate100%
6 neighbors recently requested a quote
Request Quote
Avatar for EJ Plumbing, LLC
EJ Plumbing, LLC
4.1(
9
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or ServiceWell Pump - Repair or Service

Serving Foster City, CA and surrounding areas

Approved

In business since 2007

Emergency services offered

Warranties offered

"I never give a full 5 stars, They were Very good and professional."
394 neighbors recently requested a quote
Request Quote
Avatar for Clearwater Plumbing
Clearwater Plumbing
4.9(
225
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or ServiceWell Pump - Repair or Service

Serving Foster City, CA and surrounding areas

In business since 1998

Free estimates

Emergency services offered

"Very well. The housemate using it likes it. It works well and is a great improvement over the old, leaking and very noisy one. Will definitely have more work done in the house, as needed."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+18

Recommended by97%of homeowners
Request Quote
Avatar for Puronics Service, Inc.
Puronics Service, Inc.
4.0(
38
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Foster City, CA and surrounding areas

In business since 1991

Free estimates

Warranties offered

"Great product, Price is a little high but you get what you pay for."
Response time1 day
Recommended by100%of homeowners
Request Quote
Avatar for Mega Power Electric, Inc
Mega Power Electric, Inc
5.0(
191
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Foster City, CA and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"We recently had Mega Power Electric Inc install a solar system and panels. The President and provided excellent communication all the way through the process. He even met with us after installation to explain the almost incomprehensible PG&E bill. Although not the least expensive bid, his was competitive and I felt he was as interested in educating me about solar and the various types of panels and inverter systems as he was in selling a system. He demonstrated how the array of panels would meet our energy needs and as opposed to some of the other companies, wasn't selling us more than we needed. We are very satisfied with our solar system and I highly recommended Mega Power Electric Inc."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+32

Recommended by100%of homeowners
Request Quote
...
Showing 1-10 of 60
Water Softeners FAQs, answered by experts

The chemicals in a water softener can wear down the anode rod in the heater and shorten its life span. However, for most people, the benefits of the softener outweigh this potential drawback.

Have a plumber inspect the anode rod annually for damage, as replacing the anode rod is far less expensive than replacing the entire water heater.

A tankless water heater should be at least 10 feet away from a water softener, although the pros you hire for water softener installation can help you determine the correct distance. These two units need to have some distance between them to prevent hot water from the tankless water heater from flowing backward into the water softener when it runs a regeneration cycle.

Yes, a water softener can remove scale deposits. According to the U.S. Department of Energy, after you add a water softener to your home, “gradually the softer water will dissolve limescale scale deposits and remove the problem entirely.” Installing a water softener—or water descaler—will also help prevent new scale deposits from forming.

A single shower consumes an average of over 17 gallons, while brushing your teeth with the water running uses up to four unnecessary gallons. Watering the lawn spreads hundreds of gallons of water across the yard each time. Limiting water usage in these areas can significantly cut down your water bill.

Softener systems extend appliance life spans, improve skin and hair health, and reduce pipe buildup by removing minerals like calcium and magnesium.

The Foster City, CA homeowners’ guide to water softener services

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

See all articles