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

Avatar for Water Heaters Masters
Water Heaters Masters
4.9(
110
)
Water Heater - Repair or Service

Serving Fairfield, CA and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"Water Heater Masters were top-notch! I called on a Saturday afternoon - they were available 9am Sunday morning to come and inspect and quote. They only had one guy working that day, but scheduled me for Monday morning between 8 and 9. At 8:15am I got a call with an ETA of 8:45, which was a really nice touch! Despite telling me it would take an entire day to install, they were done by 1pm. They also found some creative ways to do the install to avoid drilling through my stucco (for the exhaust vent and for the condensate run-off). Very professional and clean-looking install. These guys may not always be the cheapest around, and they recommended a top-of-the-line heater (which is what I really wanted anyway), but I'd much rather pay a little extra for that level of service and support. Thank you!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+20

Response time9 hrs
Recommended by95%of homeowners
Avatar for Complete Plumbing Services
Complete Plumbing Services
4.9(
68
)
Water Heater - Repair or Service

Serving Fairfield, CA and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"It was a good business experience with this contractor. He is a licensed professional plumber who will get a plumbing permit if the type of plumbing repairs or installation requires a permit and you want to pay the small cost of the permit to have the work inspected. He installed a new hot water heater and did a quality installation that didn't have any problems passing the city of Fairfield plumbing inspection department. Salvador VilIalpando is the owner and he does his own work. I would definitely recommend this plumbing company if you need a quality plumbing repair or installation."
Recent Projects
Recent Projects
Recent Projects
Recent Projects
Recent Projects

+8

Response time3 hrs
Response rate98%
Recommended by93%of homeowners
Avatar for Oak Plumbing Inc
Oak Plumbing Inc
4.6(
101
)
Water Heater - Repair or Service

Serving Fairfield, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"Matt did an excellent job in repairing my toilet valve problem. He was extremely professional in his preparation, repair and cleanup. I cannot begin to tell how pleased we were with Matt and his services. We were extremely pleased with the final outcome and professional repair. I would definitely recommend Matt and Oak Plumbing for any future repairs."
Response time2 days
5 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Beastbay Plumbing
Beastbay Plumbing
4.5(
226
)
Water Heater - Repair or Service

Serving Fairfield, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Free estimates

Emergency services offered

"From arranging an appointment to the actual appointment, I was treated with polite service, and the technician was very pleasant and knowledgeable. He explained every detail of the problem and expertly accomplished the repair quickly. I won't hesitate to use this company for future plumbing repairs."
Tankless Water Heater
Tankless water heater
Tankless and Water Filtration
Noritz Tankless
tub/shower enclosure

+22

Response time6 hrs
Response rate91%
264 neighbors recently requested a quote
Avatar for True Blue Plumbing Co.
True Blue Plumbing Co.
4.6(
77
)
Water Heater - Repair or Service

Serving Fairfield, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1992

Free estimates

Credit card accepted

"Marcell and True Blue Plumbing were a pleasure to work with. He was friendly and took pride in his work and client satisfaction. Marcell installed a gas line for me in Napa within the same week of providing the estimate, and he even helped me flush out my water heater free of charge. I will definitely use him for any future plumbing needs. My profession is a property manager and itâ s hard to find quality vendors like True Blueâ ¦Thanks again."
Response time7 hrs
25 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Hill's General Plumbing Services
Hill's General Plumbing Services
4.8(
21
)
Water Heater - Repair or Service

Serving Fairfield, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Emergency services offered

"This company replace my water heater, I am very satisfied with my overall experience with this company, before I agree to do the job with them staff was very friendly, professional and happy to answer all my questions, price was very fair and budget friendly, job was do very fast, very professional and clean , I recommend their services to everyone, you will not get disappointed."
Hill's General Plumbing Services
Hill's General Plumbing Services
Hill's General Plumbing Services
Hill's General Plumbing Services
Hill's General Plumbing Services

+5

Response time4 hrs
Response rate85%
5 neighbors recently requested a quote
Avatar for Bell Brothers Electrical, Plumbing, Heating, & Air
Bell Brothers Electrical, Plumbing, Heating, & Air
4.2(
116
)
Water Heater - Repair or Service

Serving Fairfield, CA and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"I called on Friday and Pierre came out on Saturday. He was very knowledgeable about replacing my wall heater that was very old. He also negotiated a discount on the full price which was great. He was very polite and scheduled the full service for Monday morning. Pierre replaced the furnace on Monday. I wasn't there, my brother was, but the heater works great and with a new thermostat on the wall. The company was great and so are their employees. I will definitely use them for my yearly maintenance of my new furnace and would recommend this company. Thank you so much for the fast response, professional work, and taking the old furnace away."
HVAC System Check Up
HVAC Install
Furnace Repair
Furnace Tune-Up
Heating Maintenance

+3

Response time6 hrs
Response rate86%
Recommended by91%of homeowners
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FAQs for water heater repair or service projects in Fairfield, 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 Fairfield, 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.