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Top-Rated Water heater installers and replacers in Millis - Updated Nov 2026

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

Serving Millis, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Emergency services offered

"Neo was excellent! My water heater went and a new one was installed by Neo and his team the next day. They were very professional, communicated instantly, and did a fantastic job. Will definitely use S.S Piping n Heat for all of my future plumbing and heating needs. Would recommend this company to anyone!"
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 Reservoir Home LLC
Reservoir Home LLC
4.8(
14
)
Water Heater - Install or Replace

Serving Millis, MA and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

Our mission is to make home electrification easy, affordable and awesome. We turn your water heater into a thermal battery. A Reservoir puts a heat pump, an onboard computer and industrial hydronic controls in one unit. It heats and stores water when electricity is cheapest and cleanest and holds it until your house needs it. \n

Reservoir Installs
Reservoir Installs
Reservoir Installs
Reservoir Installs
Reservoir Installs

+5

31 neighbors recently requested a quote
Recommended by7%of homeowners
Avatar for Gentille Plumbing and Heating
Gentille Plumbing and Heating
5.0(
28
)
Water Heater - Install or Replace

Serving Millis, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Credit card accepted

"My grandson flushed his little yellow bus down the toilet Friday afternoon. I called several plumbers in the area. By late Saturday afternoon I had only 1 returned call saying they could come out Monday morning. A friend suggested I call Gentille Plumbing and Heating. I called them and they said they could come early Sunday morning. Ryan arrived promptly as promise and quickly determine how to approach the issue and retrieved the little yellow bus. Cleanup was quick and pricing fair. Ryan was professional , friendly and was on his way within 45 minutes of arrival. Thank You Gentille Plumbing and Heating"
Response time6 hrs
Response rate96%
23 neighbors recently requested a quote
Avatar for BGC Plumbing & Drain Cleaning
BGC Plumbing & Drain Cleaning
5.0(
51
)
Water Heater - Install or Replace

Serving Millis, MA and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"I called Brandon for a hot water heater problem. To my surprise he came within two hours on a Saturday. He was knowledgeable, personable, and his fee was the best I highly recommend BGC. For all your plumbing needs. Brandon went above and beyond. When I mentioned a problem with my kitchen sink he took the time and fixed it. He is the best."
Kohler Toilet
Electric Water Heater Install
Heat Pump Water Heater Installation
Boiler Exhaust Repair
Shower Installation

+5

Response time2 hrs
Response rate95%
4 neighbors recently requested a quote
Avatar for Cotti-Johnson Heating-Cooling-Plumbing-Electrical MA
Cotti-Johnson Heating-Cooling-Plumbing-Electrical MA
4.6(
231
)
Water Heater - Install or Replace

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 Comfort Professor
Comfort Professor
5.0(
24
)
Water Heater - Install or Replace

Serving Millis, MA and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"My AC went out 2 days before a heat wave. I got a detailed estimate right away and signed immediately. The crew showed up next day and worked a long hours replacing all the equipment in the attic. My family was back online just in time to beat the heat. All the staff we worked with were clean, professional , hard-working people. I highly recommend to everyone."
10 neighbors recently requested a quote
Avatar for Rodenhiser Home Services
Rodenhiser Home Services
4.4(
522
)
Water Heater - Install or Replace

Serving Millis, MA and surrounding areas

Approved

In business since 1928

Emergency services offered

Warranties offered

"Not easy finding an HVAC company willing to install a gas steam boiler. These guys did it all and did it well, removing the old oil burner and oil tank, installing a Weil McClain boiler including steam piping and hot water, installing gas piping, electrical and plumbing, including all inspections, even leaving me a temporary hot water heater until the furnace installation was completed. They fully accommodated my schedule as well. The town electrical inspector who came after installation was complete confirmed their good reputation."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
28 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Pro Comfort Control LLC
Pro Comfort Control LLC
5.0(
25
)
Water Heater - Install or Replace

Serving Millis, MA and surrounding areas

Approved

In business since 2023

Free estimates

Warranties offered

"We contacted Pro Comfort Control to bid on the installation of a ductless mini-split in our sunroom. With many companies the person who shows up is essentially a salesperson and isn't as knowledgeable about the systems and the intricates of installing them...not so with Ryan. He was able to answer every question and explain why he was answering in a specific way related to the individual peculiarities of our house. The quote was very competitive and they use great equipment and materials. The Office Manager Alex was easy to work with in regards to scheduling and any additional questions. Installation was great and as an added bonus they smelled gas in the crawlspace while installing the lines and quickly replaced a corroded propane line for our hot water heater. You will not find a better partner for all your home cooling and heating needs."
Outdoor Heat Pump
Charging it all up!
Gas Boiler
Ductless Mini-split
Ductless indoor unit

+51

1 neighbors recently requested a quote
Recommended by79%of homeowners
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