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Top-Rated Water heater repair or service pros in San Martin - Updated Nov 2026

Avatar for Fantastic Rooter, Inc.
Fantastic Rooter, Inc.
4.5(
174
)
Water Heater - Repair or Service

Serving San Martin, CA and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"I was blown away! When I explained the circumstances, this project was for my 78 year old mother whoâ d been going without hot water for a week. They bent over backwards to help! They worked with her limited budget and did an amazing job, despite my mistake with the size of the water heater. Jazmine at the office was kind, understanding and diligent in communication. Jamie was on time, patient and extremely hard working! I would highly recommend them!"
Outdoor Tankless w H
Before a Tankless install
After a Tankless install
Indoor Tankless & Repipe
Indoor Tankless W H

+1

Response time2 days
Recommended by96%of homeowners
Avatar for Mike Counsil Plumbing and Rooter
Mike Counsil Plumbing and Rooter
4.0(
331
)
Water Heater - Repair or Service

Serving San Martin, CA and surrounding areas

Approved (Corporate)

In business since 1994

Emergency services offered

Warranties offered

"All went great they rehung the sewer pipes under the house. Replaced the damage sewer pipe. Installed a new fresh water pipe from the water meter to the house installed a pressure regulator and a back flow on the hot water heater. Pached all the holes and even one the didn’t cause"
Preparing a safe environment for working on a sewer line replacement.
Water heater installation with expansion tank
Additional Photos
Additional Photos
Additional Photos

+28

Response time8 hrs
Response rate100%
Recommended by81%of homeowners
Avatar for Atlas Trillo Heating & Air Conditioning
Atlas Trillo Heating & Air Conditioning
4.3(
37
)
Water Heater - Repair or Service

Serving San Martin, CA and surrounding areas

Approved (Corporate)

In business since 1953

Free estimates

Emergency services offered

Atlas Trillo Heating and Air Conditioning dates back to the early 1950's when the Silicon Valley was in its infancy. Atlas Trillo serves both residential and commercial customers with best in energy efficient, environmentally safe equipment and services for your ideal comfort systems. \n \nWhether it's a new installation, a retrofit, replacement, duct cleaning, or routine service, our factory-trained mechanics provide the skill and expertise on which your comfort depends.

Unclog Drain
12 neighbors recently requested a quote
Recommended by78%of homeowners
Avatar for ALVCO
ALVCO
5.0(
7
)
Water Heater - Repair or Service

Serving San Martin, CA and surrounding areas

Approved

In business since 1984

Free estimates

Warranties offered

"I hired Alvco for a plumbing repair I highly highly recommend Alvco. This is a family owned and operated entity. Tim and his brother are superb at all aspects of the business from technical expertise, on time arrival, and genuine customer care. They did a water heater replacement for me same day. They did not charge me extra for the rapid response and they quadruple checked their installation to ensure every aspect of the job was correctly executed. I also asked Tim to change the dimension of my heater as the outgoing unit i felt was to big for the closet it was located inside of. He fully supported my request and and now the new unit looks perfect. Tim and his brother are exceptional. I will use them on all my plumbing jobs going forward."
40 Gal Water Heater
40 Gal Water Heater
FloSmart Water Monitor
FloSmart Water Monitor
Pressure Regulatore & shutoff valve

+22

Response time3 hrs
Response rate95%
Recommended by57%of homeowners
Avatar for Bueno Plumbing and Rooter
Bueno Plumbing and Rooter
5.0(
2
)
Water Heater - Repair or Service

Serving San Martin, CA and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

Looking for the best plumber in San Jose, CA? Our team of highly skilled and experienced plumbers specializes in both residential and commercial plumbing, including 24/7 emergency services. From urgent repairs to full repiping and hot water installations, we do it all—ensuring quality workmanship and lasting results.\n\nWhether you need a quick fix, a major installation, or routine maintenance, we provide top-tier service at competitive rates. San Jose homeowners and businesses trust us for dependable plumbing solutions backed by high-quality materials and expert craftsmanship.\n\nDon’t let plumbing problems disrupt your day—call the most trusted plumbers in San Jose, CA, and get the job done right!

Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+22

Response time1 day
Response rate100%
1 neighbors recently requested a quote
Avatar for TRIO Heating, Air & Plumbing
TRIO Heating, Air & Plumbing
5.0(
5
)
Water Heater - Repair or Service

Serving San Martin, CA and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Called Trio Heating on a late Friday afternoon and they sent out two technicians (Jose & Dallin) the next morning to fix a gas heater that would not turn on. Their communication from beginning to end was great. They sent me a text 45 minutes before their arrival time and I was able to track their ETA which was extremely helpful. They explained to me what the issue was. I was able to run out and buy a new thermostat for them to install. They did a great job, cleaned everything up and put everything back together. They also typed up everything they worked on and took multiple detailed photos of the unit and emailed 10 minutes after they left. I think what they charged was extremely reasonable for the quality of work. I really appreciated not being charged a higher fee for coming out on a weekend. Will definitely use them again for my HVAC needs!"
Heating & Air Conditioning Installations
Heating & AC Install
Heating & AC Install
Heating & AC Install
Heating & AC Install

+101

Response time4 hrs
Response rate93%
11 neighbors recently requested a quote
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FAQs for water heater repair or service projects in San Martin, CA

Warning signs include fluctuating water temperatures, a pilot light that repeatedly goes out, unusual noises from the tank, or complete heating failure. You might also detect a rotten egg smell, indicating a potential gas leak, or notice water that never reaches the proper temperature. If your water heater is over eight years old and displaying these symptoms, the gas valve is a likely culprit. Professional inspection is recommended, especially if gas odors are present.

Water heater gas valves are not universally interchangeable. Each valve must match your specific water heater's make, model, and specifications. Important compatibility factors include gas type (natural gas vs. propane), BTU rating, connection types, and physical dimensions. Using an incorrect valve can result in poor performance, premature failure, or dangerous gas leaks. Always consult your water heater's documentation or a professional plumber to identify the appropriate replacement valve for your unit.

The San Martin, CA homeowners’ guide to water heater repair or services

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