4.2 
32 *The Angi rating for Heating And Air Conditioning Service companies in Deering, NH 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 Deering, NH 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 15, 2026
Serving Deering, NH 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 Deering, NH and surrounding areas
Approved
Free estimates
Emergency services offered
Warranties offered
"Amazing service! very knowledgeable, clean work and super respectful! if you find yourself needing any help when it comes to your heating or Air Conditioning system, call Keenan without a doubt."
+56
Serving Deering, NH and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"Mike & Chase came to do the annual maintenance that hadnâ t been done in over 5 years. They were efficient and careful working on this very old furnace. Mike was very informative- explained and answered all my many questions. Professional, efficient, thoughtful and polite. Iâ m scheduling them for my AC maintenance and plumbing needs. Trustworthy!"
Serving Deering, NH and surrounding areas
Approved
In business since 2024
Free estimates
Emergency services offered
"Brady and Casey are an awesome team. They came a long distance when the locals couldn't or wouldn't. They're friendly, extremely knowledgeable and if they were closer, they would be our regular furnace experts!"
Serving Deering, NH and surrounding areas
Approved
In business since 2005
Free estimates
Emergency services offered
"Good job at a good price"
+5
Serving Deering, NH and surrounding areas
Approved
Super Service Award Winner
In business since 2002
Free estimates
Emergency services 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 Deering, NH and surrounding areas
Approved
In business since 2024
Free estimates
Credit card accepted
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 Deering, NH and surrounding areas
Approved
In business since 2008
Free estimates
Warranties offered
"he cleaned up after himself. wow. he did a great job and I would have them back again."
Serving Deering, NH and surrounding areas
Approved
Free estimates
Credit card accepted
Offers commercial services
"Andrew knocked this install out of the park! He replaced an incredibly inefficient hot water heater with a hybrid hot water heater, ran the condensate line through pipe straps screwed into drop in anchors along our basement wall with the cleanest looking final result that surpassed every expectation I had. He was very communicative well within the budget and will be our go to for any future work we need as long as we live in this area!"
Serving Deering, NH and surrounding areas
Approved
In business since 2025
Free estimates
Small jobs welcome
"He was courteous and professional. Very friendly and easy going. At the same time very honest."
+8
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