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Best boiler installation pros near Conway, NH

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Top-Rated Boiler installation pros in Conway - Updated Nov 2026

Ed's Heating Service
5.0(
8
)
Oil Boiler or Radiator Heating System - Install

Serving Conway, NH and surrounding areas

In business since 1988

Free estimates

Emergency services offered

"My boiler in Wolfeboro NH failed suddenly. It was old and needed to be replaced anyway but I was hoping to get another season out of it. I called quite a few boiler companies and had difficulty even getting someone to answer the phone. Then I lucked out. I called Ed Grant and he answered his phone. It was November and getting cold. He came out to the house promptly and very professionally installed my new boiler. Not only is this guy honest, straight forward but he is such a hard worker. He worked diligently until the job was up and done. Absolutely no headaches, no bullshit, and not a salesman whatsoever. Ed Grant is the REAL deal if you need a new heating system. I would hire him again in an instant without a worry. A+. Thanks, Ed Brian Whitehouse"
Viessmann B2HB-35 & EVI-53
Peerless WBV-03-WPCT
Viessmann B2HB-100"s w/Indirect
Peerless WBV03WPCT
Viessmann B2HB100"s

+1

Response time7 hrs
Recommended by100%of homeowners
Avatar for TJ Thistlewood Plumbing & HVAC
TJ Thistlewood Plumbing & HVAC
5.0(
6
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Conway, NH and surrounding areas

Emergency services offered

"It went great, Tyler noted that I was handicapped and made sure that my new toilet was ADA approved. I felt it was a nice detail that many would have overlooked. Tyler paid great attention to detail, my bathroom was as clean after the new toilet was installed as it was before and even having to drag the old one through the house my hard wood floors never got a drop of water on them. He was friendly and very polite. I would definitely call him for our plumbing needs again!"
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+1

Recommended by100%of homeowners
Avatar for North Alabama Technical Services
North Alabama Technical Services
4.9(
124
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Conway, NH and surrounding areas

In business since 2010

Emergency services offered

Credit card accepted

"Jim was very helpful and personable to work with.  I had recently moved to the Huntsville area and was unable to connect my wireless printer.   There were also some things going on with my laptop that made me suspect a virus had somehow gotten on to it, it was running more slowly than usual, and I wasn't happy with the Win7 configuration I had done when I bought the computer.  Jim came in and assessed the problems and we agreed on a time for him to take the laptop and reinstall the OS.  He was able to get the wireless connection to work as well.  He took the computer on a Friday evening and returned it Sunday evening in prime condition. 
A few weeks later I  got an error message while reinstalling my accounting software so I called Jim.  He talked me through the problem over the phone and I was able to get the program installed so I could use the program.
Jim is great to work with, his pricing is very fair, he is prompt and reliable.  I will definitely use his services again.
"
2014 Super Service Award Winner!
Additional Photos
Recommended by97%of homeowners
Avatar for New England Home Renovations LLC
New England Home Renovations LLC
4.0(
311
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Conway, NH and surrounding areas

In business since 1983

Free estimates

Emergency services offered

"Once again, NE Renovations did themselves proud! We had a problematic boiler system that was giving us fits for years, but were reluctant to pull the trigger for a new one. Richard and the team found the right boiler for our home's layout and our needs. They installed the boiler, took the other one away, and we barely knew they were there! To top it all off, they even took care of the rebate from National Grid and just took that amount straight off the already very reasonable bottom line! What other firm would do that? These guys are great and I will continue to use them for all kinds of work around our home! Professional service, great quality, reasonable prices, and honesty to the point where I am completely comfortable leaving them in my hone alone! Service as it used to be and as it should be!"
Before
After's
New boiler install
Removal of cast Iron to PVC.
Additional Photos

+37

Recommended by89%of homeowners
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Install Boiler FAQs, answered by experts

Unless they are connected to the same system, boilers and water heaters will both need their own expansion tanks. The only case they wouldn’t have separate expansion tanks is if the boiler is pulling double duty and managing a heating system while also supplying hot water for a home. In which case, you may not need a hot water heater.

Depending on the size of your home and system, as well as any upgrades or add-ons you choose, it may take between three and five days to completely replace an existing HVAC system from start to finish. Your contractor should be able to give you an estimate before they begin the actual replacement.

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.

Due to fuel line connections and venting complexity, professional installation is required for safety and efficiency.

You should get anywhere from three to five quotes for HVAC replacement to get an idea of the average cost of a new unit. Although this quote-collecting process can be time consuming, it allows you to compare what work is required, what type of unit you should install, and how much you should expect to pay for the service.

The Conway, NH homeowners’ guide to boiler installation services

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