Get matched with top air conditioning pros in Round Lake, IL

"Very well. The tech did a thorough job checking both the furnace and air conditioning unit. He answered any questions we had,"

"Adam and Riccardo were very nice, quick and efficient. Too bad the cooler weather isn't allowing us to use the new air conditioning unit....lol"

"For all your heating, ventilation, and air conditioning requirements, I highly recommend CR Mechanical Services. Their ability to address problems efficiently and promptly is truly impressive!"

"Knowledgeable and professional air conditioning service"

"The air conditioner is working fine."

"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."

"Outstanding service!! Cahill has been our heating and air conditions company for over 25 years. Installed two systems over this time. High quality work."

"Phil was the best. He arrived a few minutes early to the time agreed. He absolutely did an awesome job on cleaning a dryer vent that was in dire need of cleaning. He worked so hard and made sure the job / project was done not only to my liking but to his as well. I would highly recommend Pure Air Experts for any job. I am having him back in two weeks to do a tune up for my furnace. Awesome job Phil"

"Honest, reasonable, timely & has done work for my family for 15 years. New HVAC unit recently completed. What can I say about Full Efficiency and Carlos? I have been using them for a decade and my entire family for longer. Carlos always puts the customer first, whatever it takes. As an example my HVAC unit had begun to drip & rust. Most companies would just call it normal conditions, and run. Not Carlos. He called the manufacturer and went to bat for me. A few weeks later I learned that Full Efficiency was able to convince the manufacturer to replace my unit at minimal cost. There are few if any companies that would have taken the time or even cared. Most in fact, would try to sell you a new unit. Again that's not the way Carlos works if you need a new HVAC unit he'll tell you. If all it needs is a repair, he'll tell you that too."

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.