4.5 
22 *The Angi rating for Heating And Air Conditioning Service companies in Grantham, 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 Grantham, 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 February 16, 2026
Serving Grantham, NH and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"Mike the technician was a pleasure to work with. It took two visits to fix our problem with the AC, but we are very happy customers."
Serving Grantham, NH and surrounding areas
Approved
In business since 2024
Free estimates
Emergency services offered
"I had a zone issue with my forced radiant heat system. They were able to quickly diagnose the issue, and came up with a cost effective solution. I highly recommend them to anyone having furnace issues this winter, and they're super friendly!"
Serving Grantham, 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."
+25
Serving Grantham, NH and surrounding areas
Approved
In business since 2008
Free estimates
Warranties offered
"It was awesome. They did the b they did, you know, I mean They did within a week, so within six days they had all they they were here, so that came the 1st day. He gave me a quote right away within 3 h hours so I called all three I called all three of the places you recommended, and this one was the best."
Serving Grantham, NH and surrounding areas
Approved
In business since 2024
Free estimates
Emergency services offered
"They prompt and professional, did a great job."
+7
Serving Grantham, NH and surrounding areas
Approved
Free estimates
Offers commercial services
"Gabe showed up when he said he would, completed the project in a timely, efficient and professional manner and was truly a pleasure to work with. I would highly recommend Gabe for any electrical work you need done!"
Serving Grantham, NH and surrounding areas
Approved
In business since 1987
Free estimates
Emergency services offered
Gotme under pressure? LLC IS A Plumbing, Heating & Gasfitting, Drain Cleaning professional in your area. We will meet all of your plumbing needs. We take the pressure off all your plumbing issues. As our company is built off of honesty, integrity and leadership, this is what you can expect.
Serving Grantham, NH and surrounding areas
Approved
In business since 2018
Free estimates
Warranties offered
"They were efficient, friendly, and cost effective."
+55
Serving Grantham, NH and surrounding areas
Approved
Purifera Cleaning LLC is a professional cleaning company providing residential and commercial cleaning services. We specialize in carpet and general,cleaning, deep cleaning, carpet and upholstery cleaning, move-in/move-out cleaning, and post-construction cleanup. Our commitment is to deliver reliable, high-quality service with attention to detail, leaving every space clean, fresh, and welcoming.\n
Serving Grantham, NH and surrounding areas
In business since 2021
Free estimates
Emergency services offered
"Jeff was professional and fast. He was upfront about the problem and very affordable. Lowest quote received and made sure I was happy with the work prior to leaving. Would recommend to anyone with hvac issues. I will be using him exclusively going forward."
From average costs to expert advice, get all the answers you need to get your job done.
A central air system is great for someone looking to cool and heat their home all year round. Even if your home uses baseboard heating, you can still make the switch. Read on to learn more about adding central air to a baseboard-heated house.
Try these 12 top tips to keep your air conditioner working at maximum efficiency. Stay cool, and minimize energy costs with this expert air conditioning advice.
Learn how to save money on air conditioning costs this summer by following this handy guide all about your favorite cooling system.
Is it time for a new cooling system for your home? Check out this guide to get a head-to-head comparison of heat pump vs. air conditioner systems.
Air-source heat pumps are an energy-efficient way to heat and cool your home. Learn the pros and cons of this heating method.
Retrofitting your house for AC is, surprisingly, not too hard. Here’s what you’ll need to consider to make it happen.
