Get matched with top water heater installers and replacers in Cos Cob, CT

"Talk about Top Quality service! From the professionalism of Daniel, to the great job done by Humberto and Ernest. I couldn't have had a better experience in a bad situation. They replaced our steam boiler, and our water tank and did a wonderful job. We have a warm house again thanks to them! Humberto, Ernest, I take my hat off to you!"

"Aldo’s plumbing is great. The job was done quickly and accurately. Aldo is professional and knowledgeable. I will definitely hire him again for future jobs."

"Oct. 6 2025 it went quick. I received an estimate of The job first. The work was done correctly. It didn't take long. If I need plumbing service again. I would contact Cassidy plumbing & Heating."

"Yes, one day install conversion from tank electric to tankless gas with water softener"

"Matt was great. Very responsive, professional and efficient. Installed a new hot water heater for us is no time. And a very fair price!"

"Very quick response. Water heater replaced same day."

"Water heater broke Friday, had new one installed by Monday afternoon."

"water heater. no hot water issue"

First String Plumbing, Heating & Cooling is built on over four decades of hands-on, master-level experience paired with modern equipment, straightforward pricing and a commitment to serving our neighbors near and far.\n\nWe believe every homeowner in Connecticut and New York deserves a team they can count on whenever they need help. When the lights are at their brightest and all eyes are on us, we will always do what is right and that commitment never fades.

"I hired Candito Plumbing to come out and inspect my AC unit and the guys did a good job."