Get matched with top central a/c service or repairers in Great Lakes, IL

"Excellent central AC repair service! The technician quickly diagnosed the issue, fixed it professionally, and had my system cooling perfectly again. Great experience from start to finish."

"Exceptional service provided by a technician ( Cesar) who was both courteous and well trained to execute the job at hand. I would hire Mr Duck again for anything having to do with duct cleaning or repair."

"I had a great experience with their HVAC services. They repaired my electrical baseboard heater quickly and made sure everything was working perfectly before leaving. The team was professional, punctual, and very knowledgeable. They also installed our new central A/C system smoothly with no issues at all. Communication was clear throughout the process, and the pricing was fair. Highly satisfied with the quality of work and customer service. I would definitely recommend them for any heating or cooling needs."

We are family owned and operated. We service all brands, makes and models. From furnace and water heater repair and replacements, all the way to a leaking kitchen faucet or bathroom toilet. One call REALLY does it all. Faucets, toilets, sinks, drain rodding, water heaters, boilers, furnaces, air conditioners and humidifiers. New construction to radiant heat. You know you called the pros the first time. Licensed, bonded and insured, we offer easy approval and affordable financing as well!

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

"on time, and knowledgeable the technician did the job well. Also, I had a problem changing the furnace filter. The filter was getting stuck when taking it out or installing. He repaired that too."

"Very straight forward conversation. Very pleasant service. Made me feel good about my decision to go with them."

"I can’t recommend Rich enough. He’s always responsive and is very knowledgeable. What I appreciate most is that he’s honest and never tries to upsell services or repairs you don’t actually need. He takes the time to explain everything, does quality work, and always cleans up after himself. It’s hard to find someone this trustworthy these days, and I’ll definitely be using Rich for all my HVAC needs."

"An emergency repair during a cold winter day, quick response, reasonable price, good service!Will contact this service again ."

"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."