Top-rated tankless water heater installers.

Get matched with top tankless water heater installers in Millis, MA

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

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

Avatar for S&S Piping and Heat LLC
S&S Piping and Heat LLC
5.0(
66
)
Tankless Water Heater - Install

Serving Millis, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Emergency services offered

"In late June of 2023, Neo and his apprentice replaced our water heater. Neo did charge slightly more than Google reported as the average price in our geographic area. However, "you get what you pay for." Neo was diligent, friendly, efficient, and knowledgeable. Neo responded promptly to all telephone calls and text messages. There was no drama with Neo. Neo was a consummate professional. We would definitely recommend S&S Piping and Heat. When we experienced a runaway faucet and a broken shut-off valve in the spring of 2024, Neo was quick to respond. Our over-engineered faucet required more than the replacement of a simple washer. In a professional manner, Neo repaired the faucet, replaced the valve, and corrected a related water-pressure problem. As usual, Neo offered good, solid communications. Yet again, we would definitely recommend S&S Piping and Heat."
Metro Construction Design
Metro Construction Design
Metro Construction Design
Metro Construction Design
Metro Construction Design

+53

Response time1 day
Response rate100%
11 neighbors recently requested a quote
Avatar for H L Bowman
H L Bowman
4.6(
430
)
Tankless Water Heater - Install

Serving Millis, MA 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

461 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Cotti-Johnson Heating-Cooling-Plumbing-Electrical MA
Cotti-Johnson Heating-Cooling-Plumbing-Electrical MA
4.6(
231
)
Tankless Water Heater - Install

Serving Millis, MA and surrounding areas

Approved (Corporate)

In business since 1944

Free estimates

Emergency services offered

"I appreciated being able to speak with someone in the office to explain my situation (leaking water heater), and having someone come to my home so quickly to go over my options for dealing with the problem. Dylan, Aaron and the entire crew were so professional and knowledgeable about the on-demand hot water system we chose to install. They were a pleasure to work with, and I would highly recommend them to friends in need of similar services."
Home Standby Generator Installation
Home Standby Generator Installation
Home Standby Generator Installation
Home Standby Generator Installation
Home Standby Generator Installation

+56

Response time9 hrs
Response rate97%
83 neighbors recently requested a quote
Avatar for Gentille Plumbing and Heating
Gentille Plumbing and Heating
5.0(
28
)
Tankless Water Heater - Install

Serving Millis, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Credit card accepted

"I called Ryan for my water heater leaking. He came within the same day, ready to go and replaced it quickly. He provided a great service and affordable price. Highly recommend him for any plumbing needs."
Response time6 hrs
Response rate96%
23 neighbors recently requested a quote
Avatar for Comfort Professor
Comfort Professor
5.0(
24
)
Tankless Water Heater - Install

Serving Millis, MA and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"I recently had a brand new HVAC system installed for both heating and cooling, and I couldn’t be happier with the experience. The team at Comfort Professor was extremely professional from start to finish. They worked efficiently, paid attention to every detail, and left everything spotless when the job was done. The cleanup was perfect, which I really appreciated. Highly recommend them if you’re looking for quality work and a smooth, hassle-free installation!"
10 neighbors recently requested a quote
Avatar for Rodenhiser Home Services
Rodenhiser Home Services
4.4(
522
)
Tankless Water Heater - Install

Serving Millis, 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+++"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
28 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Terrence Forbes
Terrence Forbes
5.0(
9
)
Tankless Water Heater - Install

Serving Millis, MA and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Hired Forbes Plumbing for a full basement bathroom install. Was a complicated job that required out of the box thinking due to low ceiling heights. Terrence managed to find multiple solution to allow for proper shower height and our desired designed. Was super impressed with the service ; he was on time friendly and knows his stuff. Would definitely recommend. I also had him do a propane gas install after to accommodate my barbecue and that was top-notch as well."
Water heater
Electric water heaters
Pressure vacuum breaker
Pressure vacuum breaker
Full bath and kitchen

+23

57 neighbors recently requested a quote
Avatar for Burke Plumbing & Heating, Inc.
Burke Plumbing & Heating, Inc.
4.0(
707
)
Tankless Water Heater - Install

Serving Millis, MA and surrounding areas

Approved

In business since 1975

Free estimates

Emergency services offered

"They installed a new hot water heater for me back in March. Nine months later, a part failed. Although the water heater was under warranty, Burke told me I would have to pay the labor but the manufacturer would reimburse me. The manufacturer refused and Burke Plumbing and Heating stepped and reimbursed the labor fee of $250.00! They are awesome and I would highly recommend them to anyone!"
Heating and Plumbing jobs
Heating and Plumbing jobs
Heating and Plumbing jobs
Heating and Plumbing jobs
Heating and Plumbing jobs

+19

Response time2 days
Response rate88%
136 neighbors recently requested a quote
Avatar for Johnson Plumbing-N-More
Johnson Plumbing-N-More
4.7(
27
)
Tankless Water Heater - Install

Serving Millis, MA and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"I needed some cabinets hung in my bathrooms and wasn't exactly sure where to start. The work was done in a timely and efficient manner. I would recommend for future use. Pleasant and courteous...Great to work with."
Response time40 mins
Response rate91%
Recommended by92%of homeowners
...
Showing 1-10 of 88

The Millis, MA homeowners’ guide to tankless water heater installations

From average costs to expert advice, get all the answers you need to get your job done.