4.5 
226 *The Angi rating for Heating And Air Conditioning Service companies in Hanover, OH 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 Hanover, OH 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 December 21, 2025
Serving Hanover, OH and surrounding areas
Approved
In business since 1969
Free estimates
Emergency services offered
"Excellent service. I had the entire HVAC replaced. My Installers were Kyle Q and Hakim R. They were personable and professional. The cleanup was perfect. I will definitely recommend them to others."
+8
Serving Hanover, OH and surrounding areas
Approved
In business since 2008
Free estimates
Emergency services offered
"Called and they had appointment same day. Small garage ac/heat unit fixed. Liked the service tech and will definitely hire them again."
+10
Serving Hanover, OH and surrounding areas
Approved
Super Service Award Winner
In business since 2019
Free estimates
Emergency services offered
"Jamie was without a doubt the best HVAC technician I have ever dealt with. He responded to my service call faster than I expected and went above and beyond to repair my furnace. He explained everything up front and did the repairs very quickly. I will be using him for all my HVAC needs from now on!"
+10
Serving Hanover, OH and surrounding areas
Approved
In business since 2008
Free estimates
Credit card accepted
"John was very responsive and informative about the HVAC system. Would recommend for Air Duct and Dryer vent cleaning services."
Serving Hanover, OH and surrounding areas
Approved
Super Service Award Winner
In business since 2010
Warranties offered
Small jobs welcome
"We would highly recommend JMSM. John was extremely personable,professional and thorough. We had our gas fireplace inspected and cleaned and John took the time to inspect and test all parts. As a bonus, he educated us on the use in emergency situations...such as power outage. We are very happy."
Serving Hanover, OH and surrounding areas
Approved
In business since 2019
Free estimates
Emergency services offered
"Impressed is an understatement! I called Apex when my mom's water heater went out and the company her home warranty sent couldn't repair the shut off valve. They came within 1.5 hours of me calling and were amazing. They repaired the shut off valve and took the time to explain everything. We were so impressed we had them install the new hot water tank instead of using the home warranty company. Charles was able to do everything the same day and worked around the water mitigation company. He was so professional and did a great job. We will definitely be using them for all our future plumbing needs!"
+6
Serving Hanover, OH and surrounding areas
Approved
In business since 2019
Free estimates
Emergency services offered
"Fast, clean work. Friendly, knowledgeable crew."
+22
Serving Hanover, OH and surrounding areas
Approved
In business since 1996
Emergency services offered
Warranties offered
"Hhc replaced our porch and worked on our foundation. We are very happy with the results. Would recommend them for sure."
+8
Serving Hanover, OH and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
MAD Heating and Cooling is a locally owned and operated HVAC company serving Columbus and the surrounding Central Ohio communities. Our team specializes in residential heating, cooling, and indoor air quality solutions with a focus on honest service, reliable workmanship, and energy-efficient systems.\n\nWith years of experience in the HVAC industry through our parent company, McWilliams Mechanical, we bring professional expertise and commercial-level knowledge to every residential project. Whether you need a furnace repair, air conditioner replacement, heat pump installation, or routine maintenance, our technicians are committed to doing the job right the first time.\n\nServices include:\n? Furnace repair and replacement\n? Air conditioning repair and installation\n? Heat pump service and installation\n? Ductwork and airflow improvements\n? Seasonal maintenance and tune-ups\n? Indoor air quality solutions
Serving Hanover, OH and surrounding areas
Approved
In business since 2012
Free estimates
Credit card accepted
"service was excellent installation l was quick and clean and accurate . Have a programable 4 K Tv installed in 2 hours Thank you"
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