Allied Air Conditioning & Heating Corp. is a trusted HVAC contractor offering heating and air conditioning repairs, service, and installations to home and business owners in Palatine, IL. They specialize in various services, including water heaters, air quality services, and advanced home comfort products. With a 24/7 emergency service, they provide prompt and reliable solutions. Their technicians, like Chris, Jeff, Sam, and Mike, are knowledgeable, efficient, and courteous, ensuring a smooth installation process. Customers have noted outstanding customer service and competitive pricing for their HVAC needs. Allied has been serving customers for over 30 years, with many recommending them for their great prices and dependable products. They take pride in their work, cleaning up after the job and explaining maintenance needs to their customers.
Allied replaced my furnace in 2019 and my A/C unit this year. The Carrier products they sell are great, but I'm loyal because of the quality of the work and the customer service. Billy installed both my systems and he is an artist with a small utility closet. I know it's weird I'm so proud of my utility closet, but there it is. Billy somehow fit a whole new furnace/humidifier system in the small space so seamlessly, I'd totally believe it if he had a secret life as an interior designer. That's why I had to have him for my A/C install. He has this attention to detail that focuses not only on how the system needs to work, but how we actually live - going so far as to fix… read full review
Sep 2026
5.0★★★★★
Allied is great. I get the service contract every year for furnace and air conditioner. The service pro, David, was courteous and friendly and he was able to correct the air flow through the vents so that the upstairs gets cooler.
Aug 2026
5.0★★★★★
Had to have a portion of our ductwork removed and then reinstalled for a basement project. The job was done efficiently & professionally. Very pleased with the service level. Allied installed our HVAC 8 yrs ago and I have it serviced regularly.
