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Top-Rated Water treatment 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%
75 neighbors recently requested a quote
Avatar for Oak Plumbing Inc
Oak Plumbing Inc
4.6(
103
)
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

"Jared showed up and wasted no time in doing two things at once (draining the hot water heater and repairing a small fireplace gas leak). He educated me a little on what he was doing which is always helpful. He was also careful to keep his booties on, so as not to ruin the shiny wood floors. Highly recommend based on this experience."
Response time2 days
4 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Beastbay Plumbing
Beastbay Plumbing
4.5(
226
)
Water Treatment & Purification System - Install or Replace

Serving Oakland, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Free estimates

Emergency services offered

"Ms.Dee is amazing and Brandon is a great plumber! They were able to take care of my leaking water heater same day! Saved my items in the garage and a headache! On a Friday!!!!! I will recommend them to everyone"
Tankless Water Heater
Tankless water heater
Tankless and Water Filtration
Noritz Tankless
tub/shower enclosure

+22

Response time6 hrs
Response rate91%
275 neighbors recently requested a quote
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 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

"Wow talk about an improvement on quality of life. And I feel lucky that we ended up with Damian Fernandez who was such a naturally great person. I received a call from Damian shortly after I inquired with home depot for a whole house water treatment system. He came on-time and well-prepared for my appointment providing a positively enlightening and enjoyable experience. What was also nice was that he did not pressure me to purchase anything. I settled for the top-tiered product that Kinetico offered which was a very expensive system and wished that I didn’t have to spend that much. Still, expensive upfront but besides the greatly improved quality of life, I will be saving on future costs from damages that hard water can cause on my new home, appliances, and health. I’ve been suffering from dry skin, and eczema throughout my face and body. I’ve used a lot of different skin products and they’ve just provided temporary relief. Long story short, my skin has never felt better and it feels so good thanks to Kinetico’s water system. Also, the installation of our water system was perfect and problem free thanks to Ben. I am very pleased with their product and would highly recommend it to anyone. I also strongly recommend having Damian Fernandez help you with your home water treatment needs."
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
12 neighbors recently requested a quote
Recommended by95%of homeowners
Blu Pipe Plumbing, LLC
5.0(
5
)
Water Treatment & Purification System - Install or Replace

Serving Oakland, CA and surrounding areas

In business since 2025

Free estimates

Credit card accepted

"I hired Blu Pipe Plumbing for a new water heater installation here in Dublin and the experience was excellent from start to finish. The technician arrived on time, worked cleanly, and explained everything clearly. The new unit was installed perfectly and the pricing was very fair. Highly recommend their water heater services!"
Response time4 days
Response rate100%
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