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

Avatar for J.Griffin Heating & Plumbing
J.Griffin Heating & Plumbing
4.9(
266
)
Water Heater - Install or Replace

Serving Chelmsford, MA and surrounding areas

Approved

In business since 1981

Free estimates

Emergency services offered

"Jeff Griffin really knows heating & plumbing! He also recommended 2 excellent 3rd-party companies: 1. Unlimited Removal and Demolition - to drain, cut up, & remove old oil tank; abate asbestos from, and remove, old boiler; remove oil filler pipes & patch foundation with cement 2. Boxford Chimney Sweep - to run a new flue liner and install a new stainless steel chimney cap We hired J.Griffin Heating & Plumbing to disconnect an ancient "snowman-style" oil-fueled steam boiler with attached "instant" water heater, and replace it with a gas boiler & free-standing gas water heater. Fast. Efficient. Clean. Pleasant & willing to answer all of our questions. All 3 companies provided very high quality experiences! I would hire any/all of them again. Bonuses: Sandy Griffin (with JGH&P), & Daniela Ibanez (with UR&D) provided excellent & timely email & phone support. 5 Stars all around!!"
Navien
Medford Ma
Malden Ma
Saugus Ma
Andover Ma

+64

Response time11 hrs
3 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Brian Melo Plumbing and Heating
Brian Melo Plumbing and Heating
4.8(
92
)
Water Heater - Install or Replace

Serving Chelmsford, MA and surrounding areas

Approved

In business since 2016

Customers say: Quick response

"I needed to replace my water heater, Brian was there the same day, and replaced it in ~2 hours. He was professional, and very considerate of the current Covid-19 guidelines. His price was the lowest quoted, and I could not be happier with the work. Will hire again for any plumbing needs."
Modern  shower
Modern bath
Modern bath
Combi boiler
Response time5 hrs
Recommended by98%of homeowners
Avatar for Lamore Plumbing & Heating
Lamore Plumbing & Heating
4.7(
97
)
Water Heater - Install or Replace

Serving Chelmsford, MA and surrounding areas

Approved

In business since 1997

Free estimates

Emergency services offered

"I needed a plumber right away , so i went through Home Advisor and right away Brian from Lamore called me said he was in the area, so in 10 minutes Brian was here estimating the cost of a water heater, he gave me a price but I couldnâ t get it done because of funds so I told him can you come the 24th and do the job he said sure and we hung up. 2 minutes later he calls me and says youâ re a military Vet , I said yes I am , do you have hot water , I said no Sir we will have to wait till the 24th, he says , no you wonâ t Iâ ll come and install the water heater and you pay me on the 24th, I was shocked and humbled of the fact their is still good wholesome people in this world. Iâ d recommend Brian and Lamore plumbing 1000% of 1000% times. Donâ t look anywhere else try Brian and his team to do your plumbing."
Gas Reznor Modine Heater
HTP Boiler Combi Unit
Bath Remodel
Bath Remodel
Basement Bath Addition

+26

Response time10 hrs
Recommended by98%of homeowners
Avatar for Sila Heating, Cooling, Plumbing and Electrical
Sila Heating, Cooling, Plumbing and Electrical
4.5(
5,404
)
Water Heater - Install or Replace

Serving Chelmsford, MA and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

Live Your Most Comfortable Life with a Company You Trust. \nWe offer Same Day Service and Next Day Installation! \n \nSila has been the center of delighting homeowners since 1989, with our team of engineers, certified technicians, and system designers that are proud to deliver the highest level of expertise in the HVAC industry. Whether it?s a repair, replacement, installation, or service, we have an unwavering commitment to keeping you and your family comfortable and safe ? season after season. \nWe guarantee satisfaction and are proud to have earned over 7,000 ?A? ratings on Angie?s List and its prestigious Super Service Award!

Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

67 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Reservoir Home LLC
Reservoir Home LLC
4.8(
14
)
Water Heater - Install or Replace

Serving Chelmsford, 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 Joe Montbleau Plumbing & Heating
Joe Montbleau Plumbing & Heating
5.0(
34
)
Water Heater - Install or Replace

Serving Chelmsford, MA and surrounding areas

Approved

In business since 2019

Warranties offered

Small jobs welcome

"Given the fact that having a water heater fail is never a fun experience, Joe and his team did such a fantastic job of making the situation so much better for us. Honest, hard working, fair pricing, and quality work. They were honestly a lifesaver given my wife was recently pregnant and being without hot water is not an option. They came out quickly for the estimate and there the next day for the install. Professional and courtesy and all around great team. Highly recommend!!!"
Kohler Cast Iron Tub
Kohler Shower Valve
New Vanity with Moen Widespread Lav Faucet
Kohler Toilet
In-Law Kitchen Sink with Cook Top

+15

Response time7 hrs
Recommended by100%of homeowners
Avatar for MillTown Plumbing, Heating, Cooling and Electrical - Plumbing
MillTown Plumbing, Heating, Cooling and Electrical - Plumbing
4.3(
427
)
Water Heater - Install or Replace

Serving Chelmsford, MA and surrounding areas

Approved

In business since 1979

Warranties offered

Small jobs welcome

"Milltown was exceptionally responsive (before, during and after) the work was performed. Across the Milltown organization, they were responsive to my questions about water heater selection; Mike was responsive and a partner in selecting the best location for the new unit and after, Milltown and Mike were immediately responsive when part of the unit was not operating as expected. Milltown is a solid organization that takes pride in their work."
Team Photos
Team Photos
Team Photos
Water Heater Service
Water Heater Service

+4

Response time3 days
Recommended by88%of homeowners
Avatar for Comfort Professor
Comfort Professor
5.0(
24
)
Water Heater - Install or Replace

Serving Chelmsford, 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
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