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

Avatar for J Drains Rooter Service
J Drains Rooter Service
4.8(
13
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Gilroy, CA and surrounding areas

In business since 2007

Free estimates

Emergency services offered

"It was great luck that Jason of J Drains was working on a job near my home and was able to come by after he finished that job to check my hot water heater. He fixed it right away because he spotted what was wrong quickly. Jason was very professional and polite. I recommend this company!"
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+4

Recommended by91%of homeowners
Avatar for Rayne Plumbing & Sewer Svc Inc
Rayne Plumbing & Sewer Svc Inc
4.4(
108
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Gilroy, CA and surrounding areas

In business since 1964

Free estimates

Emergency services offered

"It was okay. He spent about 20 to 30 minutes on the phone with the manufacturer of the water heater in order to troubleshoot what was wrong with it. I didn't think he knew the material as well as he should have. We had to pay an extra 30 minutes of labor. He did come on time."
Custom Bathroom Sink
Sunnyvale Plumber
Value Repipe
Woodside Shower Valve
Recommended by84%of homeowners
Benjamin Franklin Plumbing Novato
3.9(
264
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Gilroy, CA and surrounding areas

In business since 1996

Free estimates

Emergency services offered

"

During the check up, the technician discovered the rod was quite

corroded and it needed replacing.  The rod was quite expensive,

but the tech explained that I could probably find a part online

less expensive, but that Benjamin Franklin's guarantee and quality

was worth paying more.  I have had no problems with the water heater

and will call them again when it's time to replace.


"
Recommended by73%of homeowners
Avatar for Vortex Filtration Inc
Vortex Filtration Inc
5.0(
5
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Gilroy, CA and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"Vortex Filtration Inc is a excellent company with vast experience & knowledge in conditioning potable well water. I recommend Vortex Filtration Inc to design build and install their patented Vortex water system to solved all well water conditioning issues. My client had a problem for over tens years prior to the installation of the Vortex system. Once installed, the well water in the holding tank was crystal clear. Thanks Vortex!"
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+9

Recommended by100%of homeowners
Showing 1-10 of 37

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