Get matched with top tankless water heater repair pros in Napa, CA

"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!"

"Perfectly. They cleaned everything up, explained how the system worked and how often it needs attention, and hauled away the old hot water heater. They arrived on time, worked steadily, and finished before dinner time."

"We are incredibly grateful to Pedro Galvan and his team for stepping in during a moment of urgent need. When our hot water system suddenly failed, leaving us without hot water for daily essentials, Pedro responded with a level of professionalism, clarity, and compassion that is truly rare. From the very first call, Pedro was attentive, transparent about pricing, and committed to solving the problem quickly. He provided us with the most cost-effective and honest quote out of several we obtained—and, even more importantly, was able to come almost immediately when others could not. His workmanship was precise, efficient, and tidy. It was clear we were in the hands of someone who genuinely takes pride in his craft. In a world where so many service professionals overpromise and underdeliver, Pedro Galvan delivers exactly what he promises—and does so with warmth, integrity, and a deep respect for his clients. We recommend him without hesitation to anyone needing plumbing services."

"Friday night noticed water on garage floor in and around area of pressure valve of 15 year old water heater.
Saturday called at 7:45 am, arrived 10:30 am work completed 11:45 am.
Saturday night noticed water on garage floor in and around pressure valve of new water heater.
Called Sunday 8:00 am, owner responded within an hour.  Determined problem (not new water heater but it was just a matter of time) and provided immediate solution at no additional expense.
OK, let me recap:
 - First call professionally responded to and repaired in record time.
 - Second call on a SUNDAY with response provided by OWNER.  Are you kidding me?
Customer service way above and beyond any expectations.  If you need plumbing services CALL THESE GUYS!!!

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"They fixed a major water leak and installed a new water heater all in one day. They were prompt and did a neat install. I can recommend them."

"Everything went ok as far as I could tell, but yesterday a plumber told me the gas line was not large enough and that is why the water heater is not working properly."

"Found mother board problem. Would require replacement. I decided the repair was not worth the cost. Replaced the tankless system with standard tank type myself."

"True Blue Plumbing installed a tankless water heater, including complicated piping for both ventilation and overflow. I found Marcell and his son to be trustworthy, kind and fair, and to do what they said they would do. All of that without ever being told they would get ice cream bars upon their job completion!"

"Moore efficiently ordered a new part and replaced the bracket. Very simple, nice work. At the same time they did the inspection of the furnace (in our attic), found two problems and fixed them. The drain collecting water from the furnace had been damaged, and there was a error in installing the drain pipe in the attic. Some cost for these fixes but glad to have work done. We are members of Moore's "Club" so there was savings from that."

"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?” !!"