Get matched with top tankless water heater installers in Sunol, CA

"Water Heater Masters came the same day that I first contacted them and replaced my heater that day as well."

"I called and they were here working 48 hours to install and haul away a tankless water heater. They did finishing work and completed it to my high standards. They communicated very well as I was uneducated in this area. I highly recommend them."

"We were assigned Payless Water Heaters through our home warranty with Old Republic. I called them to schedule an appointment since ORHP did not notify them that it was an emergency (ie no hot water!). Payless was able to schedule someone for the next business day, however they missed their 10-2 window and arrived around 3:30. The technician Gary was quick and efficient. I would definitely call them again for service."

"Call in the morning, visit that afternoon with quote, installation next day. They didn't have our model in stock, so we got an upgrade to the next larger water heater at no additional cost. Installer was very knowledgable and friendly."

"They showed up on time. They replaced and installed a new tankless water heater unit. David and his staff are very friendly. We are happy of our newly installed unit. It turned out great!"

"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."

"The first visit lead to cleaning the area around the heater and burners and checking the thermocouple. Sadly that seemed to make it worse. Less than a week later No hot water for over 30 hours till the second technician replaced the thermocouple. All is perfect now. No charge for the second visit. The next step, if needed will be a tankless and their quote looks a bit steep. But I am really hoping I won’t need to go that far."

"I posted a review earlier and I need to revise it . The work done was for a standard water heater , not a tankless water heater"

"We are extremely happy with the installation of a new kitchen sink and disposal. The work was done by Johnathan who was polite and explained everything as he went along. Ours was a little tricky due to some tiles that had to be cut but he did an excellent job and it all came out perfect!"

"Very friendly and knowledgeable. The installation was completed very quickly and the new water heater was up and running sooner than I expected. They even installed a special anode I ordered separately. After they were done they also explained how to adjust and maintain the correct temperature."