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Top-Rated Tankless water heater repair pros in Bethany - Updated Nov 2026

Avatar for Atlantic Water Heater Pros
Atlantic Water Heater Pros
4.8(
51
)
Tankless Water Heater - Repair

Serving Bethany, 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
4.6(
430
)
Tankless Water Heater - Repair

Serving Bethany, CT and surrounding areas

Approved (Corporate)

In business since 1946

Free estimates

Emergency services offered

"Rob Quigley was awesome. Professional, efficient and knowledgeable. Couldn’t have had a better person to install my water heater. To HL Bowman—you better hang on to this guy! He’s an asset to your company."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

459 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for InstaPlumbing, LLC
InstaPlumbing, LLC
4.6(
229
)
Tankless Water Heater - Repair

Serving Bethany, CT and surrounding areas

Approved

In business since 2014

Emergency services offered

Warranties offered

"I had a line run to my refrigerator, Brandon was so nice and very professional. There was a little flaw with the job, just a human slight error. Melissa, the company owner was so professional and kind to me. I was so grateful for her and all her effort to fix the situation. I would recommend this plumbing company to anyone in need Thank you Instaplumbing and all the staff who helped! Dayna C"
 Dryer Vent Inspection
 Faucet Repair and Installation
 Shower valve repair
 Large and Small Drain Snaking
Apprentice Dylan

+1

Response time9 hrs
26 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Rooterman Hartford LLC
Rooterman Hartford LLC
4.0(
68
)
Tankless Water Heater - Repair

Serving Bethany, CT and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"Ash and M did a great job. Neat, courteous, professional — did great work on jacuzzi faucet replacement, including all associated plumbing. Explained everything when complete."
HVAC
250 neighbors recently requested a quote
Recommended by78%of homeowners
Quinn Plumbing & Heating, LLC
4.3(
198
)
Tankless Water Heater - Repair

Serving Bethany, CT and surrounding areas

In business since 1997

Free estimates

Credit card accepted

"Kenny did an excellent job and I give him 5 stars. I was told by the office staff that the installation of the new water heater (under lifetime warranty but only five years old when it needed replacing) would take up to six hours. The actual work time was closer to two and a half hours, most of the time was taken up waiting for the delivery of the new heater as well as half-way through Kenny left for another two hours, maybe even longer, to pick up an expansion tank. I had been quoted a price of $950 for the installation . After the installation the office called to ask how I wanted to pay I challenged this amount and ended up paying $850 instead. - I very much appreciated that Quinns were able and did install the hot water heater so quickly but felt I was taken advantage of financially."
Response time3 hrs
Recommended by97%of homeowners
Avatar for Sophisticated Rooter Services LLC.
Sophisticated Rooter Services LLC.
5.0(
25
)
Tankless Water Heater - Repair

Serving Bethany, CT and surrounding areas

In business since 2019

Free estimates

Emergency services offered

"He was very knowledgeable and gave me some advice on how to avoid future problems. He was also on time and the service was done fairly quickly. He took the time to make sure all repair needed was done correctly and assured me if any problems were to occur he would be back to fix."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Recommended by100%of homeowners
Avatar for E and R Mechanical
E and R Mechanical
4.6(
259
)
Tankless Water Heater - Repair

Serving Bethany, CT and surrounding areas

In business since 2018

Free estimates

Emergency services offered

"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."
Water Heater
Water Heater
Water Heater
Water Heater
Water Heater

+6

Response time2 hrs
Response rate93%
130 neighbors recently requested a quote
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