4.6 
990 *The Angi rating for Heating And Air Conditioning Service companies in Countryside, IL 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 Countryside, IL 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 01, 2026
Serving Countryside, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2002
Free estimates
Warranties offered
"The technician did a very good job cleaning the hvac ducts."
+81
Serving Countryside, IL and surrounding areas
Approved
In business since 1972
Free estimates
Emergency services offered
"Steve and his team are very professional and get the job done in a timely fashion. We had three quotes on a new HVAC system and his was by far the lowest. They were wonderful to deal with and would hire them again without question."
Serving Countryside, IL and surrounding areas
Approved
In business since 1979
Free estimates
Emergency services offered
"A good and fair hvac company to do business with. A very honest company."
Serving Countryside, IL and surrounding areas
Approved
In business since 2020
Free estimates
Emergency services offered
"They did an excellent job at an amazing price! The owner even followed up to make sure I was satisfied with their work and to see if I had any questions! Thanks for everything! Iâ ll be referring you to anyone I know who needs HVAC work! You wonâ t be disappointed going with Alâ s!"
+2
Serving Countryside, IL and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
"Anthony is a skilled, experienced HVAC technician. He started this business from scratch and has worked hard to build it and grow it in a very short time. His success speaks to the quality of the work he does and the service he provides."
+21
Serving Countryside, IL and surrounding areas
Approved
In business since 2016
Free estimates
Credit card accepted
"Rob and his team are the best around. I ve been using EE HVAC since my first home purchase back in 2012 and haven t called anyone else. Highly recommend Rob and his team!"
Serving Countryside, IL and surrounding areas
Approved (Corporate)
In business since 1971
Free estimates
Emergency services offered
"Everyone from the sales person to installers were great. I love our new HVAC system!"
Serving Countryside, IL and surrounding areas
Approved
Super Service Award Winner
In business since 1998
Emergency services offered
Warranties offered
"Amer did a wonderful job with our electrical and HVAC needs. He was quick and punctual and very professional! Would highly recommend."
+9
Serving Countryside, IL and surrounding areas
Approved
In business since 2013
Free estimates
Emergency services offered
"He is very patient in fixing my furnace. There were multiple fix he did and now my furnace is working as I wanted it. Other HVAC contractors were unable to fix, but he was able to get the job done."
Serving Countryside, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2017
Free estimates
Emergency services offered
"Francisco of United Heating and Air Conditioning is the greatest, and I will hire him again happily and hope to have him service my system yearly going forward. He came today as promised and found that my thermostat only needed batteries, but my system was otherwise fine. He is very good and extremely honest and informative."
+25
From average costs to expert advice, get all the answers you need to get your job done.
Find out the average geothermal heating and cooling installation cost in Chicago, IL. Learn what you can expect to pay and get your home ready for winter.
When determining the AC coil cleaning cost in Chicago, IL, you’ll need to factor in the size, cleaning method, and type.
Heating and cooling system on the fritz? Discover the factors that go into HVAC repair costs in Chicago, IL, and how you can save on this project.
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.
