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Top-Rated Tankless water heater installers in Still-river - Updated Nov 2026

Girouard Plumbing & Heating
4.8(
5
)
Tankless Water Heater - Install

Serving Still-river, MA and surrounding areas

Approved

Customers say: True professional

We specialize in all phases of heating, cooling and plumbing services-- installs, repairs, maintenance, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

Recommended by80%of homeowners
Avatar for Domination Plumbing and Heating
Domination Plumbing and Heating
4.6(
23
)
Tankless Water Heater - Install

Serving Still-river, MA and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"After spending 2 days trying to find someone to replace my hot water heater, Home Advisor recommended this company. They fit me into their schedule the same day and it was installed about 4 hours after my initially contact with them. Casey and Phil were great. Had them look at a couple of other minor future projects to do while they were here. Will definitely hire them again."
Custom Work
Custom Work
Custom Work
Custom Work
Custom Work

+20

Response time4 hrs
Response rate96%
10 neighbors recently requested a quote
Avatar for Rodenhiser Home Services
Rodenhiser Home Services
4.4(
522
)
Tankless Water Heater - Install

Serving Still-river, MA and surrounding areas

Approved

In business since 1928

Emergency services offered

Warranties offered

"I couldn't recommend these guys more. We had a 21-year old boiler replaced and upgraded, and a new hot water tank installed. I can't think of a single way they could have improved the whole process. From start to finish, they were knowledgeable, on time, clean, considerate, extremely professional and they did exactly what they said they would. The also installed a temporary hot water tank and left electric space heaters on the one night the burner was out of service. Everything is now working as they said it would, and a big bonus is their workmanship actually LOOKS great too! A+++"
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28 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Advanced Energy Concepts of Worcester, Inc.
Advanced Energy Concepts of Worcester, Inc.
3.8(
140
)
Tankless Water Heater - Install

Serving Still-river, MA and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

"Could not be happier with the install of our new propane system. They were very easy to work with Quinn answered all my questions Doug and Bernie and I forget the other guys name were a pleasure to have in my house. They did the work and the Quoted amount of time. They handled all the inspections and permits with the town. Extremely happy with the level of service and would recommend to anybody looking for heating needs. Edit from 2 years ago?. The company still has not picked up old water heater and boiler. Have called a number of times to get this done. Vicki is extremely unpleasant to deal with. Rude. Has zero phone skills. Should really look into finding a new person to answer the phones. She was basically yelling at me for asking, follow up questions. And when I I said, why are you yelling? She said so you would know if I was yelling at you. But she definitely was yelling. I really hope those phone calls are recorded. They?ve got their money. So obviously the customer service ha"
Response time3 days
Response rate85%
26 neighbors recently requested a quote
Avatar for Heritage Home Service
Heritage Home Service
4.6(
22
)
Tankless Water Heater - Install

Serving Still-river, MA and surrounding areas

Approved (Corporate)

In business since 2018

Free estimates

Emergency services offered

"I had gotten several quotes for this project , I was told if I could get it done cheaper it would be at the cost of quality. Not so Loudon Mechanical used the same model burner that was in the other quotes and did an incredible job with the install, these guys are true craftsmen."
Garbage disposal
Bathroom plumbing
Water heater
Water Filtration
Plumbing maintenance

+19

Response time9 hrs
Recommended by84%of homeowners
Avatar for Sila Heating, Cooling, Plumbing and Electrical
Sila Heating, Cooling, Plumbing and Electrical
4.5(
5,406
)
Tankless Water Heater - Install

Serving Still-river, MA and surrounding areas

In business since 1989

Free estimates

Emergency services offered

"We have had several Sila visits in recent months - all exceptional. VISIT 1: We had old pipes and valves that limited our dishwasher, so we had that replaced. While there, the Sila agent suggested we replace some of the attached lines and managed to streamline our hookups by removing some of the unneeded valves and connections no longer needed. VISIT 2: We similarly had a great visit and instal from David, who did a very beautiful install on our new water heater. He removed the broken unit, improved the connection design, put in improved valves and labelled each with a tag, then tagged other connections through the basement."
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Additional Photos

+6

Response time2 days
Response rate100%
7 neighbors recently requested a quote
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