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Find Tankless water heater installers in New Haven

Avatar for Atlantic Water Heater Pros
Atlantic Water Heater Pros
4.8(
50
)

Serving New Haven, CT and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"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."
Large Mechanical Room
Response time1 day
1 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for H L Bowman
H L Bowman
4.8(
384
)

Serving New Haven, CT and surrounding areas

Approved (Corporate)

In business since 1946

Free estimates

Emergency services offered

"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."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

412 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for E and R Mechanical
E and R Mechanical
4.7(
242
)

Serving New Haven, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2018

Free estimates

Emergency services offered

"Professional, courteous, responsive, and fair price. I highly recommend and will use them again. E and R Plumbing was 1 of 3 companies recommended to me by HomeAdvisor and I contacted them because they had the best reviews. Almost immediately, I received a call from Rich and while he was on the phone, he asked me to send over pictures of my 16 year old Water Heater Tank that needed to be replaced. He quoted me a fair price for both a Tank and Tankless water heater and I decided to go Tankless. Rich and two colleagues showed up the next morning, removed the old Water Heater Tank and built out a plywood mount to install a new tankless water heater directly behind where the old tank was, taking up less space. Rich and his colleagues completed the job exactly as described, and Rich called later that afternoon to make sure everything was running great!"
Water Heater
Water Heater
Water Heater
Water Heater
Water Heater

+6

Response time2 hrs
Response rate93%
134 neighbors recently requested a quote
Avatar for Jefferson Plumbing
Jefferson Plumbing
4.9(
19
)

Serving New Haven, CT and surrounding areas

Approved

In business since 2004

Emergency services offered

Warranties offered

"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!"
Steam Boiler
Boiler
Side by Side New Boilers
Steam Boiler
All New Piping and Electrical Installed

+35

Response time6 hrs
Response rate92%
2 neighbors recently requested a quote
Avatar for InstaPlumbing, LLC
InstaPlumbing, LLC
4.7(
208
)

Serving New Haven, CT and surrounding areas

Approved

In business since 2014

Emergency services offered

Warranties offered

"Plumber was very knowledgeable and professional. He found the problem and fixed it right away. I also had other issues going on that he was able to address. I highly recommend this company"
 Dryer Vent Inspection
 Faucet Repair and Installation
 Shower valve repair
 Large and Small Drain Snaking
Apprentice Dylan

+1

Response time9 hrs
33 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Top Choice Plumbing LLC
Top Choice Plumbing LLC
5.0(
4
)

Serving New Haven, CT and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

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

Washing machine set up
Washing machine set up
New kitchen faucet
1 neighbors recently requested a quote
Jacob Plumbing, Heating, and Drains
5.0(
3
)

Serving New Haven, CT and surrounding areas

Approved

In business since 2007

Free estimates

Credit card accepted

"Jason was first hired to come to repair a job that was not done properly by a prior plumber. We then needed him to re-vamp our bathroom tub/shower - new controls/tile work. Then another bathroom sink job. then a kitchen sink. We only trust Jason for our plumbing needs. He is licensed, and extremely knowledgeable."
Response time6 hrs
Recommended by66%of homeowners
Avatar for N & J Plumbing LLC
N & J Plumbing LLC
3.7(
3
)

Serving New Haven, CT and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee assures you that we won't leave your property until you are completely satisfied with our work. As a locally owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today, and we look forward to working with you!

Additional Photos
Recommended by66%of homeowners
Avatar for Heritage Heating and Air LLC
Heritage Heating and Air LLC
5.0(
3
)

Serving New Haven, CT and surrounding areas

Approved

In business since 1936

Free estimates

Credit card accepted

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.

12 neighbors recently requested a quote
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The New Haven, CT homeowners’ guide to tankless water heater installations

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