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

"Excellent service from First Plumbing. The technician arrived on time and explained all my options, and completed the water heater replacement quickly, clean and professionally. Pricing was reasonable. Highly recommend First Plumbing for water heater installation or replacement."

"Good job."

"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."

"Ismael responded quickly and professionally. He provided insight to a problem, provided options and performed the work ASAP."

"Gabriel charged us ridiculous prices for simple tasks ($75 for replacing a valve faucet in the backyard and $200 for replacing an older bathtub drain with one that we bought) on top of the $300 (150/hour labor) that he took just to show up and diagnose a potential leak. He initially said that the $200 included work on a second drain that was very corroded and stuck and promise that he will come again since he was missing a tool but when he show up he asked for an additional $300 at which point we almost let him do it but he requested the money beforehand since he was worried (rightfully) that if he breaks the tub we will not be paying him. At which point we decided to not let him do the job since he does not put his money on his skill. We managed to fix the second drain with $20 given to another plumber who came in for an unrelated issue."

"We recently had our where heater installed, and the whole process went smoothly from start to finish. The technician arrived on time,was perfessional, and explained everything clearly before starting the work. The installation was done effectively, with attention to dental, and everything was left clean. Our new water heater is working perfectly, and we couldn't be happier with the service we received. Definitely would use them again. "

"I had an awful experience with Cupertino Plumbing. The plumber showed up, barely stayed for 15 seconds, and immediately started swearing at me, saying he didn?t care about the job. Completely unprofessional and disrespectful. If this is how they treat customers, I would never recommend them to anyone."

"Very reasonable quote, great job with a father-son team. They did an excellent job installing my new water heater. Close attention to detail. No issues, no hassles, happy consumer! Compared to some other bait and switch contractors that quoted 2-3 times the price, Maverick was a blessing. Thanks a lot Maverick."

"Went well"

"The plumbing technicians came out as promised to assess the leak. They were both very courteous and kind and assessed the damage. I am giving three stars because they estimated the cost to be almost 250% higher than what the actual cost was to fix the issue. I am sure there are customers out there that would just accept any bid however, please get multiple beds for these projects, especially when working with this company as they will inflate the cost to take advantage of the situation. I ended up only paying for the $79 estimate."