4.2 
27 *The Angi rating for Heating And Air Conditioning Service companies in Northfield, MA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.
*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Northfield, MA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.
Last update on July 18, 2025
Serving Northfield, MA and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Free estimates
Emergency services offered
"Great !! Gabriel was on time and went right to work. He took pictures of duct work before and after. He supplied my wife and I N95 masks to wear during the cleaning keeping us safe. Gabriel was a true professional."
+2
Serving Northfield, MA and surrounding areas
Approved
In business since 2005
Free estimates
Offers commercial services
"Sergio and Jordan were here at the time they said they would be. Timing is very important. The two did a very thorough job cleaning and explaining what they were doing. I would recommend this company to my friends. I would also hir them again. Great job."
+6
Serving Northfield, MA and surrounding areas
Approved
In business since 2024
Free estimates
Emergency services offered
WalshCo is a family-owned heating company specializing in oil-fired heating systems throughout New Hampshire and surrounding communities.\n\nOur services include oil tank installations and replacements, oil boiler and furnace installations, heating system repairs, annual maintenance and tune-ups, diagnostics, emergency no-heat service, water heater installations, and oil tank inspections.\n\nWe take pride in providing honest recommendations, quality workmanship, fair pricing, and dependable service. Whether you need a new oil tank, a complete heating system replacement, or fast repairs to restore your heat and hot water, our licensed technicians are committed to getting the job done right.\n\nAs a family-owned business, we believe in straightforward communication, professional service, and treating every customer’s home with the same care and respect we would our own.
Serving Northfield, MA and surrounding areas
Approved
Super Service Award Winner
In business since 2006
Free estimates
Small jobs welcome
"Willing to recommend things you never thought you needed, although the crew did smoke and didnâ t pick up the butts the overall experience was very much awesome and any other electrical issue I have I will go to them"
Serving Northfield, MA and surrounding areas
Approved
Super Service Award Winner
In business since 2002
Emergency services offered
Warranties offered
"We needed chimney sweep & minor repairs. Scheduling was easy and the guys who showed up were on time and very professional. Work was done well and we’re very happy, will be calling them for all future work on our chimney and HVAC."
+36
Serving Northfield, MA and surrounding areas
Approved
In business since 2000
Free estimates
Warranties offered
"Fabulous job! We area already see the difference with the insulation through Mass Save about 25%! Mark and his crew were very professional, courteous, and really nice guys. Garrett did a great job with estimating and made the process very easy and recommended additional measures to explore. I highly recommended Green Collar!"
+2
Serving Northfield, MA and surrounding areas
Approved
Free estimates
Emergency services offered
Warranties offered
😃Ready to work. With the best possible attitude and the appropriate tools—whatever you wish to transport—and with the utmost safety.🫡
Serving Northfield, MA and surrounding areas
In business since 2006
Free estimates
Credit card accepted
"HVAC Duct Cleaning & Dryer Vent Cleaning"
+14
Serving Northfield, MA and surrounding areas
In business since 2022
Free estimates
Emergency services offered
"The team at AllStar were really friendly and did a great job cleaning my air ducts."
+12
Serving Northfield, MA and surrounding areas
In business since 1998
Free estimates
Emergency services offered
"I recommend everyone to Tom. He turned my house into a place where the air quality was well below average to basically perfect air quality. And he’s just an awesome guy who is totally awesome and respectful. I really can’t say enough good things about him and I wish I could give him 100 stars."
+40
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