4.3 
156 *The Angi rating for Heating And Air Conditioning Service companies in Dover, 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 Dover, 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 September 27, 2026
Serving Dover, NH and surrounding areas
Approved
In business since 2000
Free estimates
Warranties offered
"Kevin was prompt, professional and knowledgeable. I would recommend him to anyone in need of HVAC work."
+2
Serving Dover, NH and surrounding areas
Approved
In business since 2021
Free estimates
Emergency services offered
"Repairs were excellent and thorough "even well documented". The tech found units low on coolant. He identified and repaired multiple refrigerant leak points. I have dealt with many HVAC contractors over the years and Freedom Air Mechanical is one of the best. I highly recommend."
+36
Serving Dover, NH and surrounding areas
Approved
Super Service Award Winner
In business since 1932
Free estimates
Emergency services offered
"Palmer Gas & Oil just did an entire replacement of the 20-year-old central HVAC + humidifier + thermostats two-zone system in my home with a new state-of-the-art total system and I could not be more pleased. From start to finish each employee was personable, extremely knowledgeable, very courteous, and the consummate professional. There is truth to the adage that you get what you pay for and I know I got the best. All Gold Stars!"
+11
Serving Dover, NH and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Free estimates
Credit card accepted
"done right and on time both AC and Furnace--pleasant person to work with and all at a reasonable cost--would recommend Jake highly. ED L"
Serving Dover, NH and surrounding areas
Approved
In business since 2008
Credit card accepted
Offers commercial services
"Patrick called Friday night and showed up at 7:15 AM on a Saturday morning (OMG) to repair a central A/C system that was icing up inside. I'm still waiting to hear from the other 2 companies that were listed in my area. I know they will call Monday which would mean myself and my disabled wife would spend a very uncomfortable weekend and probably longer because most HVAC companies don't work weekends and it usually takes at least a day to schedule an appointment. Not fun when the humidity is 65% and the temp is close to 80. Patrick did a great job, A/C is running like new. Will hire him again and recommend him in a heart beat. Prices are very reasonable. Hire him!"
+18
Serving Dover, NH and surrounding areas
Approved
In business since 2015
Free estimates
Customers say: True professional
"Gary and Tina went well beyond my expectations. From a detailed explanation of the job upfront including pricing and finding a break in the duct work after they began the job. They visited 3 times (about 3 hrs r/t each visit) waiting for a hvac company to repair the duct work so they could perform the work previously detailed. Very professional, meticulous in their work and the house was as clean when they left as when they arrived. I will without hesitation call on them to perform their service in the future."
Serving Dover, NH and surrounding areas
Approved
In business since 2015
Credit card accepted
Customers say: Quality work
"I would hire these guys again tomorrow; efficient, clean, professional, and provided appropriate guidance for our system. Great result!"
+2
Serving Dover, NH and surrounding areas
Approved
In business since 2003
Free estimates
Emergency services offered
"Excellent service, up front with pricing, and very knowledgeable and friendly technicians. I highly recommend them, and I will definitely use them in the future."
+19
Serving Dover, 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 Dover, NH and surrounding areas
Approved
Super Service Award Winner
In business since 2019
Free estimates
Small jobs welcome
"Eric was awesome! Replied to my initial inquiry right away. He fixed my bathroom ceiling fan and replaced some outlets in my bathroom. He checked everything to make sure it was safe. Super friendly and I felt very comfortable. Very reasonable with pricing as well. I would highly recommend Angell Electric! Thank you"
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