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TRUSTED BY DUNSTABLE, MA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon126
    Verified water heater services reviews

Top-Rated Water heater pros in Dunstable - Updated Nov 2026

Avatar for Sila Heating, Cooling, Plumbing and Electrical
Sila Heating, Cooling, Plumbing and Electrical
4.5(
5,404
)
Tankless Water Heater - InstallTankless Water Heater - Install - For BusinessTankless Water Heater - Repair+5 more

Serving Dunstable, 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

62 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 Dunstable, 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

27 neighbors recently requested a quote
Recommended by7%of homeowners
Avatar for D Day Plumbing
D Day Plumbing
5.0(
46
)
Tankless Water Heater - InstallTankless Water Heater - Install - For BusinessWater Heater - Install or Replace+2 more

Serving Dunstable, MA and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"Damien arrived on time, was very hard working, charged an exceptionally fair price, and did an outstanding job. When he left, everything was spotless. He replaced a kitchen faucet, installed a new bathroom faucet/shower head, fixed a running toilet, and even showed me what to use on stubborn hard water stains that I was unable to remove with all the usual methods. We also had him install a second hose for the backyard and replace the existing outdoor spigot. When we redo our bathroom, we will definitely call Damien."
Cabinet - finished product
Cabinet rebuild (before picture)
Gas Hot Water Heater Install - Power Vented
Navien Wall Hung Water Heater
3 Bay Commercial Sink Install

+32

Response time2 hrs
Recommended by100%of homeowners
Avatar for Comfort Professor
Comfort Professor
5.0(
24
)
Tankless Water Heater - InstallTankless Water Heater - RepairWater Heater - Install or Replace+1 more

Serving Dunstable, 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 MillTown Plumbing, Heating, Cooling and Electrical - Plumbing
MillTown Plumbing, Heating, Cooling and Electrical - Plumbing
4.3(
427
)
Tankless Water Heater - InstallTankless Water Heater - RepairWater Heater - Install or Replace+1 more

Serving Dunstable, MA and surrounding areas

Approved

In business since 1979

Warranties offered

Small jobs welcome

"The technician and electrician were both very respectful, knowledgeable, provided all options, were open and honest about why they recommend the service chosen, helped in obtaining the financial services, walked me through the entire process. The technician went above and beyond making sure the. After the water heater install was completed he performed a safety inspection on my heating system, cleaned the debris from the flute into the chimney, made a few tweaks here and there to make sure my system was performed to his satisfaction. I was extremely appreciative of his care, concern and professionalism."
Team Photos
Team Photos
Team Photos
Water Heater Service
Water Heater Service

+4

Response time3 days
Recommended by88%of homeowners
Avatar for Precision Plumbing & HVAC, LLC
Precision Plumbing & HVAC, LLC
5.0(
23
)
Water Heater - Install or ReplaceWater Heater - Repair or Service

Serving Dunstable, MA and surrounding areas

Approved

In business since 2010

Credit card accepted

Customers say: Quick response

"Marcin was very professional and attentive. He was great at communicating and was very quick to respond. They removed an old hot water tank and installed the new tankless system. I would highly recommend his services. Looking forward to working with them again in the future!"
Response time2 hrs
Recommended by100%of homeowners
Avatar for Heritage Home Service
Heritage Home Service
4.1(
1,316
)
Tankless Water Heater - InstallTankless Water Heater - RepairWater Heater - Install or Replace+1 more

Serving Dunstable, MA and surrounding areas

Approved (Corporate)

In business since 1988

Free estimates

Emergency services offered

"Angel was exceptional, professional, efficient, clean and responsive to every request, fixed numerous issues related to my toilets, noticed a flooring issue that we are now addressing and diagnosed a water heater issue that had been attributed falsely to a foundation issue saving us thousands. They are expensive compared to many but worth every penny we spent."
Career fair
Team breakfast
Festivals and events
Golf tournament
Heritage Helps initiatives

+27

Recommended by91%of homeowners
Avatar for ER Services Plumbing and Heating
ER Services Plumbing and Heating
3.8(
23
)
Water Heater - Install or ReplaceWater Heater - Repair or ServiceTankless Water Heater - Repair+5 more

Serving Dunstable, MA and surrounding areas

Approved

In business since 2023

Emergency services offered

Warranties offered

"The young technicians who came to my home to installed the new thermostat and move it to another wall in my home were polite and conducted themselves professionally in my home and cleaned after themselves. I very appreciated Uri suggestion when he recommended to me another alternative at the initial visit and gave me a few quotes to choose from. So I'm very happy with ER service and I would rehired these two individuals back to my home. I will definitely recommend ER to other people in my life."
Gas Lines for Commercial Building
Commercial Kitchen Faucet
Bathroom Finish
Boiler Installation
Shower Stall Finish

+21

Response time6 hrs
332 neighbors recently requested a quote
Recommended by10%of homeowners
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Showing 1-10 of 104
Water Heaters FAQs, answered by experts

No. Expansion tanks must be installed on the supply side (where heated water flows out) of the boiler. There’s also a list of other requirements for most boilers, including being above the pressure relief valves, being on the inner side of any circulator, and more. Your installation manual should have more information on expansion tank installation requirements and what sort of tank the system is made for.

If you have a tank-type electric water heater, it runs regularly to keep the water at the desired temperature. If you live in a home where you don’t use much hot water, it could seem wasteful to run power to heat water that you’re using infrequently. You could save some power by using a smaller tank, insulating the tank, or lowering the temperature of the water heater.

Water expands when heated and also when freezing. When water is heated, it expands by around 4%. For a full water heater, this is one of the main reasons malfunctions occur—the hot water has nowhere else to go but out. Due to the constant expansion and reduction in volume, it’s recommended (required in most places) that an expansion tank be installed.

The amount of time it takes to replace an electric water heater will depend on the skill level of the individual who is replacing it. For example, if you replace it yourself–and you don’t have much experience–you can expect the project to take a full day. 

However, if you have a certified plumber or water heater contractor install your new water heater, it can take as little as 2 to 3 hours.

The average water heater holds between 40 and 60 gallons, but the exact amount of water that comes out during draining will depend on your unit’s capacity. The amount of time it takes to drain a water heater averages from 10 to 30 minutes.

The Dunstable, MA homeowners’ guide to water heater services

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