4.7 
705 *The Angi rating for Heating And Air Conditioning Service companies in Hillside, 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 Hillside, 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 February 19, 2025
Serving Hillside, 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 Hillside, IL and surrounding areas
Approved
In business since 1972
Free estimates
Emergency services offered
"Highly recommend. Found this company last year on Angie's List and this is the second time using them. I was in a pinch as the A/C went out and we have a little baby. I called and they got someone out the same day. Jeff was great...knowledgeable, friendly and answered a lot of questions! Got the unit working again! These are my go-to HVAC guys!"
Serving Hillside, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2014
Free estimates
Emergency services offered
"professional & courteous service. Explained what they were doing and how to improve my HVAC system"
+1
Serving Hillside, 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 Hillside, 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 Hillside, 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 Hillside, IL and surrounding areas
Approved
In business since 1992
Emergency services offered
Warranties offered
Precision Today is a trusted multi-trade contractor with a expert technicians specializing in HVAC services for residential properties. We deliver fast, safe, and reliable solutions—backed by same-day service.\n\nOur HVAC services include heating and cooling system installation, furnace and AC repair, seasonal maintenance, ductwork services, thermostat upgrades, and energy-efficient system replacements. Whether you need a quick repair or a full system upgrade, our technicians work with precision and attention to detail to keep your home or business comfortable year-round.\n\nWith locations in Carol Stream, West Chicago, Grayslake, Palatine, Franklin Park, and Naperville, we provide efficient coverage across the surrounding Chicago suburbs—allowing us to respond quickly and keep your project moving.\n\nIf you’re looking for a responsive, professional contractor who prioritizes safety, speed, and quality, Precision Today is ready to help—often the same day you call.
+49
Serving Hillside, 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
Serving Hillside, 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 Hillside, IL and surrounding areas
Approved
In business since 2009
Free estimates
Emergency services offered
"Ron and Sal were a pleasure to have in our home; they work very well together and did a superb job. I enjoyed their conversation.
They installed Rheem.
Best of all, Ron doesn't do a cookie-cutter job: he crafted a solution to an unusual plumbing problem affecting our furnace that previous HVAC installers either didn't understand or just ignored.
I believe Ron has 24 Angie's List reviews; my review will be his 25th, and his 25th "A".
"
+7
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