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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon582
    Verified boiler installation services reviews

Verified Reviews for Boiler Installation pros in Dover, NH

*The Angi rating for Boiler Installation companies in Dover, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Installation needs.

*The HomeAdvisor rating for Boiler Installation companies in Dover, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Installation needs.

Last update on August 12, 2024

Find Boiler installation pros in Dover

Avatar for Palmer Gas & Oil
Palmer Gas & Oil
4.6(
88
)

Serving Dover, NH and surrounding areas

Approved

Super Service Award Winner

In business since 1932

Free estimates

Emergency services offered

"The service technician Victor arrived on time and politely introduced himself. Prior to commencing work he inspected the work area (installation and clearances etc). He explained the house heating would be off as he cleaned filters etc. After cleaning/adjustment/testing was conducted, he went over the test results printout with me. All good and nothing required further work."
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+11

3 neighbors recently requested a quote
Recommended by94%of homeowners
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Avatar for Freedom Air Mechanical
Freedom Air Mechanical
4.8(
14
)

Serving Dover, NH and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Very well. I felt Craig was very professional and very knowledgeable. I think the previous company did me a favor when I was told they couldn’t service my boiler any longer"
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+36

Response time1 day
5 neighbors recently requested a quote
Recommended by92%of homeowners
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Avatar for Walshco LLC
Walshco LLC
5.0(
15
)

Serving Dover, NH and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"I had a zone issue with my forced radiant heat system. They were able to quickly diagnose the issue, and came up with a cost effective solution. I highly recommend them to anyone having furnace issues this winter, and they're super friendly!"
roth 275
roth 275
Roth 160 Gallon Tank
Response time9 hrs
Response rate100%
11 neighbors recently requested a quote
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Sunrise Heating and Cooling
5.0(
5
)

Serving Dover, NH and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

"Sunrise Heating and Cooling did an excellent job installing my new Rinnai tankless water heater/boiler. From start to finish, the experience was smooth and professional. The crew was knowledgeable, punctual, and took the time to explain the system and answer all of my questions. The installation was clean, efficient, and clearly done with attention to detail. Everything works perfectly, and I couldn?t be happier with the upgrade. It?s clear they take pride in their work. If you?re looking for reliable, honest, and high-quality service, I highly recommend Sunrise Heating and Cooling."
23 neighbors recently requested a quote
Recommended by40%of homeowners
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Avatar for Heritage Home Service
Heritage Home Service
4.2(
1,355
)

Serving Dover, NH and surrounding areas

Approved (Corporate)

In business since 1988

Emergency services offered

Warranties offered

"I asked for a rep to come to give quotes for repair or replacement of my gas boiler. Before he came the old boiler failed, and Heritage was able to quickly install a new one so that we without heat and hot water for only a short time."
Golf Tournament
Water quality team
HVAC tech
Electrical team
Bryan, electrician

+24

165 neighbors recently requested a quote
Recommended by91%of homeowners
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Avatar for Derry Plumbing & Heating
Derry Plumbing & Heating
3.7(
43
)

Serving Dover, NH and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"My only complaint was when I made the call I was not told that there was a service fee - that is not right! The guys that installed the water heater were great and left no mess - they get 5 stars â­ ï¸"
Rinnai install
Designer shower
Drain line
Showroom shower/tub stall
Faucet fixtures

+2

Response time10 hrs
Response rate98%
10 neighbors recently requested a quote
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Avatar for Paul The Plumber, LLC
Paul The Plumber, LLC
3.6(
19
)

Serving Dover, NH and surrounding areas

Approved

In business since 2002

Free estimates

Warranties offered

"The Paul the plumber team was really great. I needed a whole AC replacement, air handler and compressor/ heat exchanger. From quote to install was under a week! This all happened during those crazy hot 95+ degree days so it was urgent. The only issue I had was the air handler was installed backwards. The team had to come out a 3 rd day to make it right. But they did and no harm no foul. The price was right and the quality and craftsmanship looks really good. I definitely recommend Paul the Plumber."
New Boiler
Old Boiler
Rinnai Tankless Water Heater
Gas Furnace
A/C Condenser Install

+11

Response time2 days
3 neighbors recently requested a quote
Recommended by73%of homeowners
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Avatar for Coy Plumbing & Heating
Coy Plumbing & Heating
5.0(
8
)

Serving Dover, NH and surrounding areas

In business since 2024

Free estimates

Emergency services offered

"Professional, friendly. Did the job and showed photos of the resulting flushed out debris from our on-demand water heater."
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+4

Response time2 days
Response rate100%
Recommended by87%of homeowners
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Showing 1-10 of 46
Install Boiler questions, answered by experts

No, boilers and water heaters are not interchangeable because they serve different primary functions. Boilers are used for central heating systems, providing hot water or steam to heat your home. In contrast, a water heater's purpose is to supply hot water for daily household use, such as for faucets and showers. A water heater alone cannot supply the warm water or steam needed for a central heating system.

While they are not interchangeable, it is common to have both a boiler and a water heater. In fact, a conventional boiler often works best when a water heater system is already in place. The two systems can be combined to provide both heating and hot water, either by pairing a boiler with an indirect water heater or by installing a premade combination boiler-water heater unit. For home heating, some homeowners may also opt for a furnace instead of a boiler.

Boiler installations and replacements cost between $3,600 to $8,400. Expect to pay around $5,900 on average for a new boiler, including installation. Adding new radiators or heaters to the boiler may include separate costs if you are also upgrading those components, so the final price may be higher. To decrease costs, you can look for local energy rebates for using a boiler and wait until installers are offering discounts for a first-time installation.

You can save money on heating oil through a combination of improving home efficiency and smart purchasing strategies.

Home Efficiency and Usage:

  • Improve Insulation: Ensure your home, especially the basement and attic, is well-insulated and sealed against drafts to prevent heat leakage.

  • Manage Your Thermostat: Use a properly calibrated and programmable thermostat. Lower the temperature by a few degrees, particularly when you are away from home or asleep.

Purchasing Strategies:

  • Buy in the Off-Season: Order heating oil during the summer months when prices are generally at their lowest. This strategy is most effective if you have a large primary tank or a separate storage tank to accommodate bulk deliveries.

  • Consider a Delivery Contract: Some companies offer contracts with a set price for the term. This can lead to savings if market prices for oil increase, but you might pay more if prices drop.

If your boiler is 20 years old, it’s time to get a new one. Although it may seem to be working fine, it’s likely eating up more fuel than it should. Also, compared to a brand-new boiler, one that’s 20 years old is probably not working as well. When you get your new unit, you’ll notice that your home is heating more quickly, and the heat is consistent throughout all the rooms.

Yes. Boilers need water to run without overheating, also known as dry firing. If you run it without a sufficient volume of water, either because of a burst pipe or a leak, you run the risk of damaging your machine or jeopardizing the safety of your home as a whole. When in doubt, shut off your boiler and repair any plumbing issues before turning it back on. Alternatively, consider installing a low-water cutoff (LWCO) before any issues arise. This gadget will protect your boiler by monitoring water levels and automatically shutting it off if it gets too low. 

The Dover, NH homeowners’ guide to boiler installation services

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

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