Get matched with top tankless water heater repair pros in Crockett, 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!"

"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."

"Jaleen from Albert Nahmans is top notch , diagnosed the issue with an old furnace , fixed it and made recommendations for repairs and or replacement . A huge thank you!!"

"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."

"The plumber showed up within an hour of my request. He thoroughly inspected my tankless water heater and discovered the issue quickly. Problem solved. I would definitely hire the personable and efficient plumber again."

"Jared showed up and wasted no time in doing two things at once (draining the hot water heater and repairing a small fireplace gas leak). He educated me a little on what he was doing which is always helpful. He was also careful to keep his booties on, so as not to ruin the shiny wood floors. Highly recommend based on this experience."

"They quickly provided one day service call, and fit our repair into their busy schedule."

"The water heater repair was $400 and they wanted to charge us the $300 for the bathroom leak, but we told them it was ridiculous because the guy was only here for 5 minutes. They ended up crediting us some money back so they handled that really well. Less than 2 days later the water heater broke. They did not send out the same guy. They guy they sent out was really great, he walked us through every minute and dime he spent. He told us not to worry and that we were getting our money's worth. We've used them many times over the last 7 years. Once it was Christmas Eve and the hot water heater was having problems and they came out and repaired it for free. Then there was another time that I needd a $6,000 repair and I didn't have time to get estimates, but I trusted their work. The work has been quality, I think in the future with them I will ask them upfront for an assessment and not pay them until they start doing the work."

Since 1999, Hassler Heating and Air Conditioning has helped East Bay homeowners stay comfortable with energy-efficient heating and cooling solutions built to last. We specialize in full system replacements, heat pumps, ductless mini-splits, and high-performance home upgrades designed to lower energy costs and improve year-round comfort.\n\nHomeowners choose Hassler for honest recommendations, expert system design, and clean, professional installations. Whether you need a fast repair or a complete system upgrade, our team focuses on long-term solutions—not quick fixes.\n\nServing Alameda, Contra Costa, and Marin counties, we’re committed to doing the job right the first time, with quality workmanship you can trust.\n\nCall today for expert service and a smarter, more efficient home.

"Michael Smith gave us a very excellent service. Weâ re so happy to have him fix our big problem with the water leak infront of our house. He has really a great knowledge and the best quick service performance.. We truly appreciate your help. More power to the company!"