
Serving Cornish, NH and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"very pleasant and explained every step of the installation process."

*The Angi rating for Boiler Installation companies in Cornish, 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 Cornish, 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 07, 2026

Serving Cornish, NH and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"very pleasant and explained every step of the installation process."

Serving Cornish, NH and surrounding areas
In business since 2020
Free estimates
Emergency services offered
"Working with Triumph was an amazing experience. The entire team is professional, knowledgeable, efficient, and well spoken. In New England where heating is an essential service I felt totally confident Triumph would do a superb job installing my new boiler. They even moved their schedule around to install the unit the very next day. I plan to hire them in the future for all my heating, cooling, and plumbing needs."





+26
Serving Cornish, NH and surrounding areas
In business since 1985
Free estimates
Emergency services offered
"We were concerned with a couple of issues and they put our minds at ease. They were professional and efficient; George and Joe cleaned up after themselves, were very carefully to always use a drop cloth, and kept us in the loop on the installation. If we had one area we wished that Lake Sunapee Heating would improve it would be in the area of customer communication. However, we are more than satisfied with their work and would recommend this business.
Overall assessment: quality workmanship at a reasonable price.
"

Serving Cornish, NH and surrounding areas
Free estimates
Emergency services offered
"The work was done neatly. It looks good. However, the plumber told me that condensation of this type can be acidic and we would need an alkaline filter. Because of circumstances we were in a hurry and had no time to discuss or verify this information. A previous contractor whom I called to ask about a new furnace told me he would add a simple pump and hose to the cost of the furnace for $60. The installed filter looks very sophisticated and I believe added a lot to the cost of the job. The invoice was not itemized. I neither asked for nor received a cost estimate of the work to be done. The work may be fairly priced and necessary. It seems excessive, but I did not investigate. The fault, if there is any, is partly mine."

Serving Cornish, NH and surrounding areas
In business since 2010
Emergency services offered
Credit card accepted
"Jim did a great job. He quickly assessed the problem and then took our unit with him to work on it more. When he got back to us, the fix would have cost more than it was worth. He gave us options for a new or refurbished PC. We felt the refurbished was a good deal and chose that. He came back and set that up and we are very happy with it. He then took a look at my laptop and again took it along. He tuned it up and installed a speed upgrade we wanted. Of course, we paid extra for the new unit and upgrades, but we thought the price was very fair. Jim seemed very knowledgeable and responsive. We will definitely call him again if we need any computer services."



Serving Cornish, NH and surrounding areas
In business since 2024
Free estimates
Emergency services offered
"Work with Tylor. His quality and customer responsiveness is top notch. I had him install 3 mini splits in our home. I originally wanted Mr Cool.. He coached me into upgrading to Mitsubishi for our area due to it’s significant quality increases vs Mr Cool and he was able to purchase and install faster and significantly cheaper than the “Home Depot” “Mr Cool” 3rd party install pricing company Highly recommend Tylor and his work"





+6

Serving Cornish, NH and surrounding areas
In business since 2021
Free estimates
Emergency services offered
Residential Heating and Cooling Company. Specializing in Mitsubishi Ductless Mini-Splits and all types of Heating and cooling systems, Water Heaters and Generator Installation and service . We also provide Propane, Natural Gas and Oil heating system Service and Maintenance!

Serving Cornish, NH and surrounding areas
In business since 1971
Credit card accepted
"AHS is ok. They cover repairs of most everything under the roof of your house. The companies that contract with them are not always the best. You call AHS with the issue, they send a fax to the repair company and give you the contact info. If they don't contact you within 24 hours, you call them. Sometimes they answer, sometimes they don't. When they arrive (usually three days or so later), they service the item. if it has issues within the 90 days, you call AHS again, they are sent out with no charge. If the serviceman decides the unit is unrepairable, AHS will allow you to choose a replacement from their listing (usually not as good as what you have) they will install and remove your old item, or give you wholesale amount to buy and install your own. Prices vary on what you want covered and what you want the copay to be, plus where you live. For me it is 49.99 per month with a 75.00 time of service order. You can have more than one item serviced at the same time under the same fee. If you have a SEAR product the repair guys are great. Not that wild about the other ones they send out. But it is a big savings compared to calling someone on your own. The cost of service is only the 75.00 copay."





+2
Serving Cornish, NH and surrounding areas
In business since 1893
Free estimates
Warranties offered
Sears Home Improvement Products � Heating and Cooling \n \nSears can provide the right solution to your home improvement needs. We offer a full line of exclusive Kenmore� and Carrier� heating and cooling systems. Get the brands you trust from the name you recognize � Sears. Schedule your FREE In-Home Consultation today! \n
Serving Cornish, NH and surrounding areas
In business since 2020
Free estimates
Emergency services offered
Moving Company in business for 4 years, locally owned and operated we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!\n I am looking forward to helping with all your needs.


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

Discover the average electric boiler installation cost, key price factors, and ways to save. Get transparent, expert-backed estimates for your project.

Get the facts on propane boiler installation costs. Learn what impacts your price, compare options, and budget confidently for your home upgrade.

The average boiler installation cost depends on size, system type, and other factors. Keep reading to learn the cost of a new boiler.

Looking for a qualified boiler installation pro? Learn how to find and hire the right professional, from credentials to questions to ask.

Is your heating system failing or leaking? Learn about radiator and boiler installation costs, warning signs, and how to hire the right local pro.

Installing a boiler requires care and precaution. Use this checklist to install a boiler safely.