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Top-Rated Water treatment pros in Lafayette - Updated Nov 2026

Avatar for AAA Water Systems, Inc.
AAA Water Systems, Inc.
4.1(
57
)
Water Treatment & Purification System - Install or Replace

Serving Lafayette, CA and surrounding areas

Approved

In business since 1980

Free estimates

Warranties offered

"The people at AAA really know their business. From talking to Tony and hearing his advice to the professional installation of our water filtration system everything went perfectly."
Combination System (Whole Home Softener & Filt
Reverse Osmosis / Drinking Water System
Salt Free Conditioner & Scale Reduction System
Kinetico Non-Electric Water Softener
Response time12 hrs
57 neighbors recently requested a quote
Recommended by95%of homeowners
Custom Construction
5.0(
11
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Lafayette, CA and surrounding areas

Approved

In business since 1996

Free estimates

Credit card accepted

"John was Great!!! Our first appointment had to be cancelled due to unforeseen circumstances, but John communicated the issue immediately which was much appreciated, and set new appointment. When John came arrived on time (A+) Professional and listened to my idea/suggestion (A+) Did the job in less than the estimated time (A+) Cleaned and REPAIRED the wall area which I didn't expect (A+) Price was 1/3 of what others wanted to charge. Definitely, recommend NorCal Water Treatment to others, and will be rehiring for future plumbing projects/issues. I'm real BIG on customer service/professionalism and John is "The Man!""
Response time12 hrs
Recommended by100%of homeowners
Avatar for Oak Plumbing Inc
Oak Plumbing Inc
4.6(
105
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Lafayette, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"Oak called 2nd but came next day/ UN-prepared to do either repair or water test (requested on phone) or even replace with ready new ADA toilet that the lying receptionist booker said they have “some in stock and if not he will show a catalog of choices”. Guy came punctually with Nzo tools or appliances Or knowledge of what I asked for as an “URGENT repair/replace”. See ABC review same call. Not quite as bad as them doing same since we also still have broken HVAC too, both said they would fix ( I bought gasket already, they could have put in) or replace if they brought new toilet. Problem is not in water pipes except they need testing for lead - both said they would do this too - when I asked oak re taking a sample, how long sitting in pipes? He wiped off his soda water bottle and asked “which pipes?” !!"
Response time2 days
4 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for FLUSHITDOWN
FLUSHITDOWN
4.8(
23
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Lafayette, CA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Brandon did a great job with the mystery leak. He was very thorough and tried to be the least invasive with my sheetrock and ceiling leak. This way I will not have such a big project of repair to my ceiling. Great job!!!!"
Shower install
Shower install
Pressure reducing valve
1 neighbors recently requested a quote
Recommended by55%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 Lafayette, 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
10 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for New Era Rooter & Plumbing
New Era Rooter & Plumbing
4.8(
34
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Lafayette, CA and surrounding areas

Free estimates

Emergency services offered

"Finding a plumber who is there to solve the issue and not try to redo your whole bathroom is hard to find. Everyone wants to cut and replace but New Era Plumbing took the time to diagnose and fix what was needed. Efficient. Cost effective. Has the skills, knowledge, and confidence to do it in one morning. I feel like lots of plumbers wanted to hedge on what they could deliver, especially since they are turning off your water. I’m very grateful to finally find a skilled professional."
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+3

Recommended by93%of homeowners
Avatar for SAVIOR PLUMBING
SAVIOR PLUMBING
4.9(
27
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Lafayette, CA and surrounding areas

In business since 2000

Free estimates

Credit card accepted

"Came earlier than anticipated. Cleared toilet promptly after 2 tries. Took approximately 10 minutes. Removed stain at bottom of toilet bowl caused by implement used, and showed me how to remove water and refill if it needs to be cleaned in future. Discussed possible future installation of hot water heater. Very personable and professional, as was owner when I made initial contact this AM."
Additional Photos
Recommended by100%of homeowners
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