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

Avatar for Barrington Solutions Plumbing & Heating LLC
Barrington Solutions Plumbing & Heating LLC
4.9(
17
)
Tankless Water Heater - Install

Serving Plymouth, NH and surrounding areas

Approved

In business since 2024

Free estimates

Small jobs welcome

"I finally got to build my dream garage to store all my tools and have a cool hangout on Friday nights with the boys n a couple coors. Chris came and did everything from the bathroom and the heating system. I will definitely be calling him back to add a mini split in the future. He was professional, punctual and clean. Very knowledgeable you can tell he cares about his clients."
Granite Ridge
Brook hill development
Sanborton
Derry
2.5 bathroom modular

+39

41 neighbors recently requested a quote
Avatar for Rowell's Services, LLC
Rowell's Services, LLC
4.6(
76
)
Tankless Water Heater - Install

Serving Plymouth, NH and surrounding areas

Approved

In business since 1983

Emergency services offered

Credit card accepted

"They responded quickly and were very knowledgeable about our needs. The man who came out to check the situation even went to the town fire chief to get an OK and the type of installation they wanted to do before the quote. The job was done within about 2 weeks from contacting them via HomeAdvisor."
Before & After Boiler
B4 & After Boiler2
Response time10 mins
3 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Pasquaney Mech LLC
Pasquaney Mech LLC
4.7(
13
)
Tankless Water Heater - Install

Serving Plymouth, NH and surrounding areas

In business since 2024

Free estimates

Emergency services offered

"I was impressed with his knowledge and his ability to explain his thoughts to me as we were reviewing what needed to be done to install a replacement propane water heater He scheduled the project right away and came in the time frame designated, finish the work and also did extra functions that had to be done to allow the equipment to get into my basement. He followed up to make sure everything was working well and offered to come back in a day or two if I needed assistance. His billing was easy and professional. We are hoping to have him back again next year to do some HVAC work."
Master Bedroom Unit
Office
Great room
Novak Install
Novak Install

+6

Response time1 day
Response rate85%
Avatar for Barrington Solutions Plumbing & Heating LLC
Barrington Solutions Plumbing & Heating LLC
5.0(
8
)
Tankless Water Heater - Install

Serving Plymouth, NH and surrounding areas

In business since 2024

Free estimates

Emergency services offered

Customer satisfaction is what determines our success, which is why we take a hands-on approach. When interacting with Barrington Solutions Plumbing & Heating LLC, you'll notice that we're particularly focused on the principles of quality workmanship, timely completion, competitive pricing and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your project needs. Contact us today for a fair and accurate estimate of your project. We look forward to adding you to our long and growing list of happy customers. \n

Shower valve replacement
laundry facilities
laundry facilities
oil change
oil change

+7

Avatar for New Hampshire Ductless LLC
New Hampshire Ductless LLC
4.3(
6
)
Tankless Water Heater - Install

Serving Plymouth, NH and surrounding areas

In business since 2021

Free estimates

Emergency services offered

Residential Heating and Cooling Company. Specializing in Mitsubishi Ductless Mini-Splits and all types of Heating and cooling systems, Water Heaters and Generator Installation and service . We also provide Propane, Natural Gas and Oil heating system Service and Maintenance!

Recommended by100%of homeowners
Avatar for New England Home Renovations LLC
New England Home Renovations LLC
4.0(
311
)
Tankless Water Heater - Install

Serving Plymouth, NH and surrounding areas

In business since 1983

Free estimates

Emergency services offered

"We contacted Richard regarding the job, and had a quote back within the week - good quote.  He quickly responded to any questions  we had, and scheduled the work.  They completed the demo in one day, a few days before the cabinets showed up - if I had to do this again, I would hold off on the demolition until the cabinets were in, as it is difficult to live without a kitchen, especially with children.  It took approximately two weeks for the kitchen to be completed, with slight delays due to a damaged cabinet, time for the new countertops to set, appliance delivery, etc.  One hitch developed when the dishwasher was hooked up incorrectly, and water ran into my basement - I called Richard, and once I got through the answering service, he contacted the plumber, and we resolved the problem immediately over the phone, and the plumber was at my house at 8 the next morning ( a Saturday of a holiday weekend) to permanently fix the problem.  At the end of the two weeks, we had a great new kitchen, well installed, and we were thrilled!"
Before
After's
New boiler install
Removal of cast Iron to PVC.
Additional Photos

+37

Recommended by89%of homeowners
Showing 1-10 of 17

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