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TRUSTED BY FAIRFIELD, CA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon43
    Verified water heater services reviews

Top-Rated Water heater pros in Fairfield - Updated Nov 2026

Avatar for Water Heaters Masters
Water Heaters Masters
4.9(
110
)
Tankless Water Heater - InstallTankless Water Heater - Install - For BusinessTankless Water Heater - Repair+5 more

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 - Install or ReplaceWater Heater - Install or Replace - For BusinessWater Heater - Repair or Service+1 more

Serving Fairfield, CA and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"Sal contacted me promptly and set up an appointment the same day. His estimate was nearly $1500 less than the estimate I got from Greiner Heating & Air. Showed up the following day on time, was very personable and well organized. I used to work in the building trade and I can attest that he did an absolutely professional job of replacing our water heater."
Recent Projects
Recent Projects
Recent Projects
Recent Projects
Recent Projects

+8

Response time3 hrs
Response rate98%
Recommended by93%of homeowners
Avatar for Beutler Air Conditioning & Plumbing
Beutler Air Conditioning & Plumbing
3.8(
131
)
Water Heater - Repair or ServiceWater Heater - Install or ReplaceTankless Water Heater - Install+5 more

Serving Fairfield, CA and surrounding areas

Approved (Corporate)

In business since 1956

Free estimates

Warranties offered

"August 25, 2026 Rated 5/5, I am writing to express my appreciation for the excellent customer service provided by Horacio Parker, a plumber with Beutler Air Conditioning and Plumbing. On August 25, 2026, water was leaking from my water heater onto the garage floor. Mr. Parker responded promptly, listened attentively, and showed patience, empathy, and understanding of my concerns. He was courteous, polite, friendly, and maintained a professional, positive attitude throughout the service call. Mr. Parker shut off the power and water, drained the old 75-gallon Bradford White water heater, and installed a new 75-gallon Bradford White Energy Saver water heater. He communicated clearly and showed me how to shut off the water to the house and turn off the water heater to help prevent future flooding. Mr. Parker is an asset to Beutler Air Conditioning and Plumbing, and any company he provides service to Lovevasia Bey"
Drain Cleaning
22 neighbors recently requested a quote
Recommended by77%of homeowners
Avatar for True Blue Plumbing Co.
True Blue Plumbing Co.
4.6(
77
)
Water Heater - Install or ReplaceWater Heater - Repair or ServiceTankless Water Heater - Install+5 more

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
24 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Oak Plumbing Inc
Oak Plumbing Inc
4.6(
101
)
Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Fairfield, 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
6 neighbors recently requested a quote
Recommended by85%of homeowners
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Water Heaters FAQs, answered by experts

Venting a gas water heater out of the roof is preferable in most cases. Heated exhaust gases naturally rise, so a vertical vent pipe is efficient. If you’re trying to vent through a pipe exiting a wall, the angle of the pipe may be more horizontal than vertical, making the venting system less effective. If you go through a wall, you may need to add a fan to ensure a successful expulsion of the gases outdoors.

A tankless water heater with a flow rate of 10 GPM should replace a conventional 50-gallon water heater. To avoid a surprise cold shower or two and to keep your energy costs in check, it's important to replace a conventional tanked water heater with the equivalent tankless water heater. Your household size and the number of hot-water-using devices you use at once can help you determine the best-size tankless water heater.

While not all homes require a hot water heater expansion tank, they are necessary in most newer homes and are often mandated by local building codes. Codes typically require an expansion tank if your plumbing system is a 'closed-loop' system, which often includes a backflow preventer or pressure regulator on the main water line. Some municipalities have specific requirements. Installing an expansion tank on a closed system is crucial, as it prevents excess pressure that can damage your water heater and other appliances, potentially shortening their lifespan. However, tankless water heaters do not require an expansion tank.

Flushing biannually, checking the anode rod, and temperature settings maximize equipment lifespan while reducing surprise costs.

We recommend you turn off the unit, the power, and the water supply as soon as you notice a leak. Your water heater tank should have a dedicated shut-off valve located on the cold inlet pipes. If the valve is broken or inoperable, use the shut-off valve to your home's main water supply to stop the flow to the entire house.

Avoid touching valves or pipes directly without confirming if they are hot. Wear gloves and other safety gear to keep from coming into contact with hot levers or components when turning off your leaking water heater.

The Fairfield, CA homeowners’ guide to water heater services

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