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TRUSTED BY DOVER, MA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon215
    Verified water heater services reviews

Find Water heater pros in Dover

Avatar for Genove Oil & Air Co
Genove Oil & Air Co
4.7(
217
)
Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Dover, MA and surrounding areas

Approved

In business since 1977

Free estimates

Emergency services offered

"We were very pleased with the work that the Genove technicians did. They removed our 40-year-old gas boiler and associated water heater and replaced it with a new system. They tested the new system carefully, put explanatory tags on all of the relevant pipes and faucets, and cleaned up well. The team members were polite and worked hard. We had similarly good experiences when Genove technicians came to repair our central AC system. They were knowledgeable and efficient, got the system going again, and the price was fair. We continue to use this company for heating and AC repairs."
Additional Photos
Additional Photos
Additional Photos
Pics
Pics

+2

Response time12 hrs
Response rate100%
14 neighbors recently requested a quote
Avatar for Reservoir Home LLC
Reservoir Home LLC
4.8(
14
)
Water Heater - Install or Replace

Serving Dover, 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

7 neighbors recently requested a quote
Recommended by7%of homeowners
Avatar for Cotti-Johnson Heating-Cooling-Electrical
Cotti-Johnson Heating-Cooling-Electrical
4.7(
168
)
Water Heater - Install or ReplaceTankless Water Heater - InstallTankless Water Heater - Install - For Business

Serving Dover, MA and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1948

Free estimates

Emergency services offered

Experiencing issues with your heating, air conditioning, plumbing, or electrical systems? Cotti-Johnson is your reliable one-stop shop for all home comfort needs. From simple fixes to large-scale projects, our professional team handles everything with honesty and expertise. We offer 24/7 emergency services and specialized design services for landscape and indoor lighting. Trust us for top-notch, efficient, and transparent service. Visit our website at callcotti.com or call us at (833) 826-8844 to see how we can improve your home's comfort and efficiency.

Navien Install
Backflow
Outdoor Shower
Well Tank Replacement
Filtration Installation

+62

Response time10 hrs
76 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Yellow Dog Home Services, LLC
Yellow Dog Home Services, LLC
5.0(
10
)
Water Heater - Install or ReplaceTankless Water Heater - RepairTankless Water Heater - Install+1 more

Serving Dover, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Credit card accepted

"Hello, Yellow Dog Home Services was phenomenal! Jeffrey was able to come the same day, complete an assessment, and define the next steps for the installation of a new hot water heater the following day. He is very personable, professional, knowledgeable and affordable. Yellow Dog is now saved in my iPhone for future project needs! Richard"
Our Team In Action!
Our Team In Action!
Our Team In Action!
Our Team In Action!
Our Team In Action!

+10

Response time7 hrs
Response rate96%
44 neighbors recently requested a quote
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Water Heaters questions, answered by experts

The time it takes to install or replace a water heater depends on the type of heater and the complexity of the job. A professional can typically replace a standard tank-style water heater in one to three hours. However, if the work area is tight, such as a small closet or crawl space, the job could take four to five hours. Replacing an existing tankless unit takes about two to three hours, while upgrading from a tank-style to a tankless water heater is more complex and can take four to six hours. The project will take longer if you are switching fuel sources, such as installing a gas heater which can add about an hour to the timeline, or if the unit needs to be relocated.

There are pros and cons to tankless water heaters. They are more efficient than traditional tank water heaters, and maintenance costs are lower. These units are also much more compact. On the other hand, they cost about twice as much to install as traditional tank water heaters and are more limited in terms of flow rate.

In most municipalities, a license is not mandatory for water heater installation or replacement. However, we strongly recommend hiring a licensed plumber or water heater installer to handle the work. Licensed installers are far less likely to make a mistake during the installation, which means paying for the experience decreases your risk of a leak and other issues. You can use our state licensing tool to find out if a contractor you’re considering in your area holds a plumber’s license.

Yes, a water heater can be replaced in a day and can take between two and three hours to install from start to finish. Even if you encounter extra tasks that need to be completed, the job can still be completed in one day.

When the water expands in a hot water heater, it puts pressure on your hot water pipes and can cause leaks or a rupture in the hot water tank under certain conditions. Pipes or water heaters may split due to the pressure where there is a backflow preventer that prevents the hot water heater from diffusing pressure by releasing water back to the public water line.

In these scenarios, a hot water heater expansion tank provides a place for the hot water heater to relieve pressure and prevent bursts and leaks.

The Dover, MA homeowners’ guide to water heater services

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