Get matched with top tankless water heater installers in North Haven, CT

"Williams & Associates installed a Buderus oil-fired boiler and stainless-steel chimney liner. Bruce's design was a significant upgrade over my 35-year-old boiler system. He clearly explained the process and installation, and he was receptive to my questions. Bruce is knowledgeable, straightforward, and responsive. The price was very fair, considering the quality of the work and other estimates I had gotten. I would not hesitate to recommend Williams & Associates."

"They were very fast to respond to my call and were able to send someone within two hours. The replacement of the hot water heater went well. For the water pipes they use copper crimp fittings instead of soldering so it will be interesting to see how that holds up over the years. My only concern is how they ran the gas line. They use Gastite CSST which is fine, but the CSST is run so it goes downward then back up and then downward again before it enters black pipe that has a moisture trap. It seems to me that if there is any moisture it will end up in the CSST instead of the trap. In addition, there is a pretty good bend in the CSST right before it goes into the trap section. Also, Teflon tape was used on the all the joints instead of joint compound. I think I will get someone from a different company to come in and take a look at it."

"We decided not to go tankless but E&R did a great job installing a new 50 gal Rheem heater. Very quick and clean install. I will use them again in the future."

"Boiler stopped producing hot water. Called in the evening and Mansolf came the next morning. Did diagnostic and ordered parts for repair. Punctual and reliable."

"My project was handled professionally all the way through. I knew that it would be a difficult project -- that entailed removing low-hanging old radiator heating pipes in my basement and refeeding 4 radiators with pex tubing. The crew worked efficiently, cleaned up well, and communicated progress. When the system wasn't working properly, Ed worked with me to determine options, and honestly noted that a mechanical engineer might give us better advice. We then followed that plan and my system is working great. A great value!"

"Mike and Todd worked quickly and installed a new water heater for a great rate. Was easy to communicate with during the entire process. Definitely recommend."

At Top choice plumbing, we believe plumbing should be simple, stress-free, and done right the first time. Whether you're dealing with leaking pipe, clogged drain, or need a full installation, we're here to help with fast, reliable service.\n\nWe treat every home like it's our own, showing up on time, keeping things clean, and explaining your options clearly. No surprise, no shortcuts-just honest work and lasting solutions.\n\nWhen you call us, you're getting a plumber you can count on.\n

"Mike was excellent. He came in was very polite and professional. He quickly provided the quote and in less than an hour had removed the old leaky faucet and installed the new one. It worked perfectly and looks amazing in the kitchen. Mike removed all the old parts and new faucet packaging. He even gave me pointers on diy checking water pressure to make sure there is not too much pressure coming in. Also, reminded me to register my Delta faucet which I did shortly after. Thank you Mike!! Price seemed a bit high, but it was done right away on a Saturday! With 6 month warranty on the plumbing work."

"Great job by Total Mechanical Systems repairing/replacing old faucets on my tub/shower that would not stop the running water. Their tech, Joe, was friendly and professional. The problem is solved, I am very happy after this experience."

At Heritage Heating & Air, comfort isn’t just what we deliver—it’s who we are. For nearly a century, our family has provided dependable, high-quality heating and cooling solutions. Now in our fourth generation, we continue a legacy built on craftsmanship, trust, and doing things the right way.\nWith 96 years of experience, we combine time-tested knowledge with modern technology to deliver reliable, efficient HVAC services—from maintenance and repairs to full system replacements. Every job is handled with care, precision, and pride.\nAs a family-owned and operated company, we treat every customer like family, offering honest recommendations, transparent pricing, and service you can count on. We’re proud to serve your neighborhood with the same integrity that has defined us for generations.\nAt Heritage Heating & Air, your comfort is our heritage.