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,"

"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"

"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."

"This business is the company that bought the older Barrington Heating and Air Conditioning. I have relied on Barrington to service my house furnace and A/C for more than 50 years. They have come to my rescue more than once. My service technicians have become friends, not just repair people."

"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"

"You absolutely need to hire these guys for whatever heating/cooling project is on your list. We had been ghosted by 4 HVAC companies in 9 months. Carlos Jr. called me at 9AM and by 4:30PM I not only did I have a working AC but I had an all new and upgraded unit. I am so impressed by their quick and QUALITY work. They were kind and understanding."

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.

"I had the opportunity, and the pleasure, to work side by side coordinating with the office manager Maggie. She was so intentive with all my needs and always made it easy to get my questions answered. Maggie kept me informed on every step of this very large process from scheduling a crane and road crew, to getting permits and having the work inspected. SHE MADE THE WHOLE THING SIMPLE. Now the work crews worked quickly to get things running for us. The original plan was to take two days getting the old air conditioners down from the roof and then the new ones up and running. The crews had everything done in less then a day. I could not be happier with my experience with Phoenix HVAC!! I will definitely hire them again!"