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Top-Rated Tankless water heater installers in Carmel - Updated Nov 2026

Avatar for In Town Plumbing and Heating, Corp.
In Town Plumbing and Heating, Corp.
4.7(
33
)
Tankless Water Heater - Install

Serving Carmel, NY and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"Guy is the absolute best. He is fair, explains everything in detail and he really cares about the customer and the quality of the work he does. His attention to detail is really impressive and he has a great demeanor. Guy intsalled a tankless water heater in my home. It was a job that a few companies turned down becuase of the amount of work that needed to be done with a challenging job. Guy was open to ideas and made it work and did not leave until the job was perfect. We have since used Guy for other plumbing jobs and everything has been great. I highly recommend him."
Navien Combi Boiler Install
Navien Combi Boiler Install
Oil Fired Weil-McLain Boiler
Navien Combi Boiler Install
Weil-McLain High Efficiency Boiler

+22

Response time11 hrs
5 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Cassidy Plumbing and Heating, Inc
Cassidy Plumbing and Heating, Inc
4.5(
32
)
Tankless Water Heater - Install

Serving Carmel, NY and surrounding areas

Approved

Super Service Award Winner

In business since 1992

Emergency services offered

Warranties offered

"I decided to go with Cassidy because out of the 4-5 different companies I contacted, they were the first to respond in a timely manner and their dispatch fee was affordable ($79 vs >$100). The actual service they provided went well. They were on time, finished the whole project within a couple hours and were professional. However, I did remove a star from my rating because they do overprice everything. I was able to cut down my total cost by >$300 by just buying my own supplies (ex: water faucet, basket strainer, faucet aerator, etc.). They were going to charge me $125 for something I was able to get for $4 and fix on my own, which I thought was ridiculous. Overall, I would recommend because they made the whole process go smoothly but I would just be aware of their pricing and make sure they don't trip you off."
Heating System
Heating System
Plumbing
The Team
Navien Water Heater

+3

Response time2 days
Response rate100%
8 neighbors recently requested a quote
Avatar for 1 & Done Plumbing
1 & Done Plumbing
5.0(
14
)
Tankless Water Heater - Install

Serving Carmel, NY and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"I’d definitely recommend this gentleman to anyone looking for a good, reliable plumber. He did some plumbing work at my house and ran into a few problems that needed some thinking outside the box. He was able to come up with solutions instead of just telling me it couldn’t be done. He showed up when he said he would, did a great job, and made sure everything was working properly before he left. I’d 100% recommend him and will definitely be calling him again whenever I need plumbing work done."
31 neighbors recently requested a quote
Affordable Heating & Cooling of NY Inc.
4.3(
53
)
Tankless Water Heater - Install

Serving Carmel, NY and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"Finally! After an overall fiasco with an installation of a water heater, someone who has experience, expertise and business ethics came to fix the issue. Dave identified the problem, installed the temperature regulator on the water heater. Extremely neat, cleaned up, breaded and zip tied dangling wires. Gave a full detailed invoice after his work. Will definitely use him in the future!"
Response time4 hrs
Response rate86%
8 neighbors recently requested a quote
Avatar for Benjamin Franklin Plumbing of Danbury
Benjamin Franklin Plumbing of Danbury
4.4(
7
)
Tankless Water Heater - Install

Serving Carmel, NY and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

We take pride in serving the vibrant community of Danbury, and we understand the unique plumbing challenges that homeowners in this area may face. Whether it's addressing hard water issues prevalent in the region, performing sewer line inspections to prevent root intrusions, or offering eco-friendly plumbing solutions, our expertise is tailored to the specific needs of Danbury residents.\n\nTrust Benjamin Franklin Plumbing of Danbury to safeguard your pipes and preserve the integrity of your plumbing system. With our unwavering dedication to quality, reliability, and customer satisfaction, you can feel confident that your home is in capable hands.

Gallery
Gallery
59 neighbors recently requested a quote
Avatar for Mr Water Heater
Mr Water Heater
5.0(
9
)
Tankless Water Heater - Install

Serving Carmel, NY and surrounding areas

In business since 2020

Free estimates

Emergency services offered

"Excellent! Mr. Water Heater was very responsive, professional and knowledgeable. It has been a while since we had a full inspection of our plumbing and was pleased to know all was good! I also received a $75 discount for presenting their flyer! Definitely will be using them for any plumbing needs moving forward."
Replacement valves
Replacement valves
Additional Photos
Additional Photos
Recommended by100%of homeowners
Avatar for Braido Heating & AC
Braido Heating & AC
5.0(
25
)
Tankless Water Heater - Install

Serving Carmel, NY and surrounding areas

In business since 1978

Emergency services offered

Credit card accepted

"Heater was making a knocking sound and of course it was the holiday season. Braido came out right away and found a fan part needed replacement. The parts vendor was closed but they came out the next available day and had everything running smooth."
Additional Photos
Additional Photos
Recommended by100%of homeowners
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The Carmel, NY homeowners’ guide to tankless water heater installations

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