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Top-Rated Water softener pros in Oakland - Updated Nov 2026

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

Serving Oakland, 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%
74 neighbors recently requested a quote
Avatar for Oak Plumbing Inc
Oak Plumbing Inc
4.6(
104
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Oakland, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"The plumber came almost at the end of the appointed time. When he arrived, he was fairly arrogant, and refused to negotiate despite coming from Angie's list. Lastly, he repaired the leaky line in about an hour, charging $530, and also did not provide the water plastic box for water line. We had to purchase one from another store. When I paid for the invoice, they didn't tell me that they are charging additional 3% with credit card. All in all, they did the work, but at a high price, and so so customer service."
Response time2 days
4 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for H K & S Plumbing Co.
H K & S Plumbing Co.
4.3(
96
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Oakland, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Emergency services offered

"Harry installed a hot water circulation pump for me He did an excellent job in addition he also improved the stability of the water heater and removed parts of the old pump which were not needed anymore. He is very friendly, knowledgeable and efficient,"
H K & S Plumbing Co.
Response time11 hrs
28 neighbors recently requested a quote
Recommended by73%of homeowners
Avatar for Hydro Works Well & Pump
Hydro Works Well & Pump
5.0(
7
)
Well Pump - Repair or Service

Serving Oakland, CA and surrounding areas

Approved

In business since 2004

Emergency services offered

Warranties offered

"Josh diagnosed our seized water pump on a weekend. He did and acid descaling and replaced a corroded pitless adapter. How our well is back to top performance."
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
Avatar for Quality Pump Service
Quality Pump Service
4.5(
50
)
Well Pump - Repair or Service

Serving Oakland, 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
Avatar for AAA Water Systems
AAA Water Systems
4.7(
57
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Oakland, CA and surrounding areas

In business since 1993

Free estimates

Emergency services offered

"The water here in Manteca is terrible. It smells, tastes disgusting and leaves your skin dry and ashy. I research water softeners/purifiers online and with my neighbors and then contacted AAA Water Systems since they use the Kinetico water systems. I had an appointment with Damian Fernandez and he was very thorough in his explanations of the system, how it works, maintanence, future costs, just everything I needed to know to make an informed decision. And it was the best decision ! I know have purified water right at my sink from the reverse osmosis sytem and soft smell free water from all the taps. No more hard water deposits, no ashy skin and coarse hair. No more bottled water to drink or cook with. The installers were wonderful...prompt and professional. Everything spotless when they were done. They carefully explained and showed me how to use, maintain, and just in case, shut the system off. They also provide little measuring scoops for the proper amount of soap to use in the washing machine and the dishwasher."
Whole Home Softener / Filter & Reverse Osmosis System
Whole Home Softener / Filter & Reverse Osmosis System
Compact Kinetico Drinking Water System. NSF 58 Certified to provide high quality drinking water!
Desktop style Kinetico Drinking Water System providing high quality water with NSF 58 certification.
Compact Kinetico Drinking Water System. NSF 58 Certified to provide high quality drinking water!

+18

Response time1 day
11 neighbors recently requested a quote
Recommended by95%of homeowners
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Water Softeners FAQs, answered by experts

While not everyone can detect taste differences in high-calcium water, water that has a slightly metallic taste probably has too much calcium.

Choosing involves understanding water hardness levels, household size, desired features, and consulting professionals experienced in suitable system types.

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

You can decide whether you need a water softener or water filter based on how your bathing or laundry experience is. If you notice issues like limescale buildup, dry skin, or stains on dishes—all telltale signs of hard water—you'd likely benefit from a water softener. However, if your main concern is over chemicals or bacteria in your tap water filter, and not just comfort, a filter is a better option.

Installing a water softener could help reduce calcium buildup in your pool if your pool has high calcium hardness as a result of hard drinking water in your home. Pool softeners work by exchanging calcium and magnesium for sodium, so if you use softened water to top off your pool, it may help keep calcium hardness from rising over time. However, it won’t lower the calcium hardness of the water already in your pool and isn’t a practical way to control pool calcium levels. The average water softener installation cost is between $200 and $6,000.

The Oakland, CA homeowners’ guide to water softener services

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