*The Angi rating for Heating And Air Conditioning Service companies in Dover, DE 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, DE 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 June 20, 2026
Serving Dover, DE and surrounding areas
Approved
In business since 2000
Free estimates
Emergency services offered
"Workman was experiance in the type of boiler that I have and answered all of my questions.. I will hire this summer for air conditioning"
Serving Dover, DE and surrounding areas
Approved
Super Service Award Winner
Free estimates
Emergency services offered
Warranties offered
"Major League HVAC did a fantastic job installing my new heat pump and beat everyone price. Excellent customer service and great employees. Clean job and on time service."
+6
Serving Dover, DE and surrounding areas
Approved
In business since 1992
Free estimates
Emergency services offered
"I would like to thank Adrian Gomez for recommending me to have my duct/vents cleaned! Aire serv sent out Bryson and he did a fantastic job. He took his time and I haven’t seen my vents more clean. Im due to have a baby in a couple weeks and now know my air quality is so much better. I highly recommend this awesome team!!"
+128
Serving Dover, DE and surrounding areas
Approved
In business since 1991
Free estimates
Emergency services offered
"Amazing experience! The salesman (Alex Cox) was extremely polite and professional. He was more interested in getting us the product we needed than selling us as much as he could. Even after the sale was made, he stayed in contact through the installation process to make sure we were satisfied. The installation team did a great job too. Professional, hard-working and very knowledgeable. They spent extra time making sure it was right and even widened the duct leading from the unit to improve airflow, at no extra charge. I would highly recommend One Hour not only for the great service, but we are very happy with the equipment and the price we paid for it!"
Serving Dover, DE and surrounding areas
Approved
In business since 2015
Free estimates
Emergency services offered
"Best Home Service Company Ive worked with"
Serving Dover, DE and surrounding areas
Approved
In business since 2010
Free estimates
Emergency services offered
"great service showed up when they said they would and fixed unit on a holiday"
+63
Serving Dover, DE and surrounding areas
Approved
In business since 1989
Free estimates
Emergency services offered
"Horizon workers are very professional, friendly, hard workers and communicate well. They answered all my questions and also showed me how to operate the products they installed. They cleaned all the areas and worn booties when they went in the house like I said in the beginning very professional."
+18
Serving Dover, DE and surrounding areas
Approved
In business since 2010
Free estimates
Emergency services offered
"Lawson always does a great job they also checked our dehumidifier which they installed. Donnie was friendly, thorough and went over everything he did when done! Great experience as usual!!"
+137
Serving Dover, DE and surrounding areas
Approved
Super Service Award Winner
In business since 2002
Free estimates
Emergency services offered
"Very well. Sunny's Services not only moved our new stand up freezer into our house, they removed the old one AND all the packing materials from the new one. They even advised us not to plug in the new one for a couple hours because they tipped it when they moved it. They were on time, courteous and the price was very reasonable."
+81
Serving Dover, DE and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
"I had Montrell install some gas pipe for a dryer hook up. He is an absolute professional. Above and beyond what I expected. He was so good, I asked for him by name the next time I needed plumbing done. He connected my fridge water line."
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