*The Angi rating for Air Conditioning companies in Zion, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Air Conditioning needs.
*The HomeAdvisor rating for Air Conditioning companies in Zion, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Air Conditioning needs.
Last update on March 25, 2026
Serving Zion, IL and surrounding areas
Approved
In business since 1946
Free estimates
Emergency services offered
"Very well. The tech did a thorough job checking both the furnace and air conditioning unit. He answered any questions we had,"
+2
Serving Zion, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2002
Free estimates
Warranties offered
"They did great job cleaning each supply and return in the house. I noticed the air flow is stronger i have to keep the T.stat lower ."
+81
Serving Zion, IL and surrounding areas
Approved
Super Service Award Winner
Free estimates
Emergency services offered
Warranties offered
"Very impressed with their heating and air conditioning maintenance. They explained everything clearly, worked efficiently, and left no mess behind. Our home feels fresher after the air duct cleaning. Definitely a trustworthy team you can rely on."
+20
Serving Zion, IL and surrounding areas
Approved
In business since 2011
Free estimates
Emergency services offered
"In May of 2021, CR Mechanical replaced our HVAC equipment (furnace and AC), and installed a new air scrubber and an ecobee thermostat. We were very satisfied with their work (exceeded expectations), and Craig is an excellent installer (that was most important to us). The ecobee was defective out of the box, and he reinstalled our old thermostat and was back the next day (as promised) to install a replacement ecobee. Everything works great."
+8
Serving Zion, IL and surrounding areas
Approved (Corporate)
In business since 1911
Free estimates
Emergency services offered
"AWE (Air, Water, Energy) did a great job. The installers arrived on schedule and worked all day to removed the old equipment and installed the new equipment. When they were finished, everything looked great and the work area was completely cleaned up. The air conditioner has worked great all summer and kept our house at a comfortable temperature. I am looking forward to a similar experience with the new furnace, also. After the system was installed, AWE sent an inspector to our house to make sure the job was completed satisfactorily (which it was) and take pictures of the equipment to make sure it was installed correctly (which it was).
FYI, we have been a customer of AWE for over twenty years because of the great service they have always provided. This was the 2nd furnace and air conditioner we have purchased from them. They also installed our current water heater. The technicians are always very knowledgeable and friendly. They always arrive when they say they will arrive, and do what they promise. The services provided have always met or exceeding our expectations. I would recommend AWE to everyone.
"
+10
Serving Zion, IL and surrounding areas
Approved (Corporate)
In business since 1971
Free estimates
Emergency services offered
"We had a great experience with Four Seasons Heating & Air Conditioning during our recent replacement of our furnace and AC unit. They were very professional and completed the job on time and answered all of my questions. Would recommend them for our Heating, Air Conditioning, Plumbing and Electrical needs."
Serving Zion, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2014
Credit card accepted
Customers say: True professional
"Replaced the original AC Unit(at least 25yr old), added a new humidifier to furnace and a new smart thermostat. The original guy who did repair work, Phil, was knowledgeable but at the end of the day wanted to sell anything he can. He had convinced me I was able to get rebates through ComEd for upgrading AC unit and adding the smart thermostat. At this time, I have been unable to get any rebates because he failed to mention I need to also have a furnace that qualifies and there was no receipts on the thermostat to claim that rebate. The day of the install, the guys that were here, did great work. They installed everything and added a damper to furnace(which does not work that great). When the guy installed the thermostat, he installed the wrong one and i had to show him the work order for the correct one. He left and it took a week for him to return to install the correct one. He also left with all the boxes."
Serving Zion, IL and surrounding areas
Approved
In business since 2002
Free estimates
Credit card accepted
"I was able to get this scheduled for the same day, all my ducts cleaned and now I'm ready for the cooler months. Very happy with this service."
+42
Serving Zion, IL and surrounding areas
Approved (Corporate)
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 Zion, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2018
Free estimates
Emergency services offered
"It cost me $800 for recharging my ac unit and leak repaire"
+16
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