Local business · Farmington, NHLocal business · 427 NH-11, Farmington, NH 03835
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Vachon's Heating & Air Conditioning holds a 4.9-star Google rating from 77 ratings, and its calls often start with something that stopped working. A recent customer said Mike patiently walked them through troubleshooting a boiler/water heater that was throwing an error code and helped get it working again. A 2026 customer said Mike serviced their furnace the same day it stopped working, when their original furnace service could not get to them for a week. A 2024 customer said their furnace broke down one winter evening and he was at the house within an hour, after midnight. A 2025 customer said something was leaking on Thanksgiving eve and Mike showed up and fixed the problem. The bigger jobs are installs and repairs on older systems. A 2025 customer said the company identified several issues with a 35-year-old boiler, got parts and installed them, and that the boiler had not run this quietly in many years. A 2025 customer said Mike and his team installed an HVAC system during a house renovation that called for creative ductwork layouts. A 2023 customer said Vachon's installed dual mini-splits, that the installation was very clean, and that Mike came back to give a refresher on using the Haier unit. A 2024 customer was replacing a kerosene monitor heater; Vachon's, which serviced their #2 fuel boiler, recommended adding a second zone with baseboard hot water heat, and the customer said it came to half the cost. A 2024 customer said their calls for oil dropped by at least half after a new furnace and hot water system went in. The work reaches past heating equipment. A 2025 reviewer, a local real estate broker, said that after Vachon's installed a new furnace in a client's home, the house lost power and pipes froze and burst; the company was there within the hour to stop the water and replaced 25 pipes. A 2024 customer said Vachon plumbing addressed a propane leak with black iron pipe, and a 2025 customer said the company serviced their propane system in Dover with a quick turnaround.
Mike at Vachon Heating is a great man! Our Boiler/Water Heater was not working and throwing an error code. I was able to contact Mike, and he patiently walked me through trouble shooting and helped me get it working again. They are the kind of company you want working on your home!
Mike was able to service my furnace same-day after it stopped working. My original furnace service wouldn’t be able to get to me for a week in the frigid temperatures. Mike was efficient and prices were great! Very glad we made the switch to Vachon!
Something was leaking Thanksgiving eve. Mike showed up & fixed the problem! Fast service, reasonably priced & with a smile. 😃 Vachon's for the win!
My 35 year old boiler was running inefficient, Vachon heating identified several issues, got parts and installed at a reasonable price. The final tune was impressive, boiler hasn't run this efficient and quiet in many years!
Did an excellent job at a reasonable price. System working perfectly as designed. Couldn't be happier. Highly recommended.
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1 change recorded — last scanned Oct 18, 2026.
Typical your area range for this kind of work, from regional averages — not a quote from Vachon's Heating & Air Conditioning LLC. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$5,000 – $11,400
Typical HVAC project around $8,200
Heat pump installation3.9
Cooling layout that preserves storage space5.0
52 years in business3.0
State-verified plumbing license since 20243.7
