Top-rated boiler installation pros.

Best boiler installation pros near Andover, NH

Enter your zip and get matched with up to 5 pros

TRUSTED BY ANDOVER, NH HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon109
    Verified boiler installation services reviews

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

Avatar for CRS Heating and Cooling, Inc.
CRS Heating and Cooling, Inc.
4.9(
72
)
Electric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - InstallOil Boiler or Radiator Heating System - Install

Serving Andover, NH and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"We recently had a new combi boiler installed by CRS Heating & Cooling System, and we found that they do excellent work at a fair price. Bob provided quotes for different brands and patiently answered all of our questions so that we could make the best decision for our family in replacing our old machine. Cody is professional, skilled, and took the time to be sure that our new combi boiler was properly installed. We are so fortunate to have found Cody and Bob at CRS Heating & Cooling System, and we plan to call on them for all of our future heating and cooling needs."
Response time7 hrs
Response rate86%
1 neighbors recently requested a quote
Avatar for Barrington Solutions Plumbing & Heating LLC
Barrington Solutions Plumbing & Heating LLC
4.9(
17
)
Gas Boiler or Radiator Heating System - Install

Serving Andover, NH and surrounding areas

Approved

In business since 2024

Free estimates

Small jobs welcome

"I finally got to build my dream garage to store all my tools and have a cool hangout on Friday nights with the boys n a couple coors. Chris came and did everything from the bathroom and the heating system. I will definitely be calling him back to add a mini split in the future. He was professional, punctual and clean. Very knowledgeable you can tell he cares about his clients."
Granite Ridge
Brook hill development
Sanborton
Derry
2.5 bathroom modular

+39

41 neighbors recently requested a quote
Avatar for East Coast Plumbing And Heating LLC
East Coast Plumbing And Heating LLC
5.0(
6
)
Oil Boiler or Radiator Heating System - InstallElectric Boiler or Radiator Heating System - Install

Serving Andover, NH and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"East Coast Plumbing and Heating provided us with a great service on a big job of replacing our 30 years old furnace. Dylan was very accommodating and explained the process in a great detail. His estimate for the job was honest and fair. Dylan and his crew did the job in one day and did an excellent work for a reasonable price. We are very happy with this company and we will work with them in the future. I highly recommend East Coast Plumbing and Heating."
11 neighbors recently requested a quote
Avatar for Total Climate Control
Total Climate Control
3.4(
194
)
Gas Boiler or Radiator Heating System - InstallOil Boiler or Radiator Heating System - Install

Serving Andover, NH and surrounding areas

Approved

In business since 2008

Free estimates

Warranties offered

"I hired TCC three weeks ago to install a heat pump mini-split systems for my 4 BR home. Their quote was competitive, their install went as planned, and the technicians were super knowledgeable and worked hard to do it right. I am thrilled with the results. I have recommended them to family already and TCC will get more business."
Central AC
New Gas boiler
All new hydronics
All new hydronics
28 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Hometown Heating & Air
Hometown Heating & Air
5.0(
3
)
Gas Boiler or Radiator Heating System - InstallBoiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - Install+3 more

Serving Andover, NH and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Very responsive communicators, helpful with advice, seemed to have my best interests in mind. Installers were very courteous, friendly, efficient, and cleaned up beautifully - explained equipment and coordinated well with other contractors involved. Definitely recommend."
12,000 BTU floor mounted console
cassette style Mini split
Indoor 9,000 BTU high wall head.
36,000 BTU outdoor condenser
Additional Photos

+25

Response time1 day
Response rate100%
6 neighbors recently requested a quote
Avatar for Coy Plumbing & Heating
Coy Plumbing & Heating
5.0(
8
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Andover, NH and surrounding areas

In business since 2024

Free estimates

Emergency services offered

"We were very pleased with the communication and the outcome of our project. We have an old home with some older piping. Finding someone that works on steam boilers is tough. When they looked at the install, they explained what needed to happen clearly deand unrstandable."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+4

Response time2 days
Response rate100%
Recommended by87%of homeowners
Avatar for Triumph Heating and Cooling
Triumph Heating and Cooling
4.8(
29
)
Gas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For BusinessOil Boiler or Radiator Heating System - Install+1 more

Serving Andover, NH and surrounding areas

In business since 2020

Free estimates

Emergency services offered

"Devin Coleman was prompt, courteous, professional and well informed. He advised us and responded to our requests. His estimate was easy to review and he answered questions effectively. Triumph's lead technician, Andrew was clearly a professional who knew both the products and the complicated installation process. His installers included Josiah, Austin and Devin and they were all hard working and interacted well together and with me. I appreciate their attitude and the work they performed. We are delighted with our new system which effectively cools, heats and dehumidifies our home. I feel that this is the best purchase we have made in remodeling our home. Thanks to all of you!"
Rooftop Unit
Van
Ductwork
On Demand Boiler
Boiler

+26

Response time1 day
Recommended by80%of homeowners
Showing 1-10 of 28
Install Boiler FAQs, answered by experts

The best time of year to purchase or replace an HVAC system, including components like an air conditioner or furnace, is during the off-season—spring and fall. During these periods, HVAC professionals are less busy than in summer and winter, when extreme temperatures create urgent demand. Shopping during the off-season can lead to savings of 10% to 15% on an AC unit and allows you more time to find the best deal and other cost-saving incentives. Typically, air conditioning units go on sale in the fall after demand drops, while furnace prices tend to decrease in the spring.

If you want to have hot water in your home and part of your plumbing system, you'll need a hot water heater. An alternative may be to heat water as you use it, such as by boiling what you need on the stove. But that's much less efficient and takes considerably longer than hooking up a water heater. Another option is to rely on appliances, such as a dishwasher or washing machine, that heat the water themselves.

Steam boilers require flushing at least every six to 12 months to keep them operating effectively for as long as possible. Depending on your water quality and frequency of use, you might need to do this more frequently. The flushing process helps to remove problematic buildup of sediments. While a boiler contractor near you can perform a thorough annual flush, learning how to drain the system yourself means you can do this monthly if you experience speedy mineral accumulation because of hard water. 

The average lifespan of a boiler is typically between 15 and 20 years, though some may last for as little as 10 years while others can reach 30. A boiler's longevity is influenced by several factors, including the quality of the unit, proper installation, and consistent professional maintenance.

The material also plays a significant role. Older boilers made from durable cast iron can last for over 20 years, with some functioning for up to 50 years. However, it's important to consider their lower efficiency, which can lead to higher utility bills. Modern boilers, often made from steel alloys, are designed to withstand high pressure and temperatures and have an average lifespan of about 20 years.

To maximize your boiler's lifespan, ensure it is installed correctly, have it professionally maintained each year, and address any necessary repairs immediately.

Costs depend on issue severity, parts needed, and labor rates.

The Andover, NH homeowners’ guide to boiler installation services

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