Palatine, IL
847-359-4500 500 E Northwest Hwy Palatine, IL 60074
HVAC Company in Palatine & Libertyville
Allied Air Conditioning & Heating
Treating Your Home As Part of Our Family Since 1969Trusted Heating and Cooling in Palatine
Welcome to Allied Air Conditioning & Heating Corporation, a family-owned and locally operated heating and cooling company serving Northwest Chicagoland since 1969. Allied is not owned by a private equity firm. Our family answers directly to the homeowners and businesses we serve, not outside investors. Our customers know our recommendations are always based on what your property and HVAC system actually need, not sales quotas or short-term return targets.
Free Second Opinion on Repairs
Looking for HVAC service in Palatine or Libertyville? Our experienced heating and cooling professionals know how to solve home comfort challenges of every size and complexity. We use precise diagnostics to identify the root cause, explain your options clearly, and recommend the repair, replacement, or upgrade that provides the strongest long-term result.
Allied’s capabilities extend beyond conventional heating and cooling. We also service water heaters, indoor air quality equipment, snowmelt systems, pool area dehumidifiers, new construction systems, and advanced home comfort products.
If you’re looking to improve the comfort of your home, Allied Air Conditioning & Heating Corp. is ready to help.
We’re your trusted HVAC company in Libertyville, Palatine, Arlington Heights, Barrington, Buffalo Grove, Lake Forest, Lake Zurich, Vernon Hills, Grayslake, Wilmette, Winnetka, Glencoe, Highland Park, Barrington Hills, Lake Barrington, and beyond.
How Can We Help?
Our Home Services
Questions? We Can Help! Contact Us Today!
Allied Heating & Cooling
Here When You Need Us
We know that HVAC systems often break down at inconvenient times. That’s why Allied Air provides prompt, 24/7 emergency service to Palatine, Libertyville, and the surrounding communities. Let us take the stress out of a heating or cooling emergency.
Our team is standing by to provide you with the reliable service you need to get your day back on track. Call us now for prompt repair service.
We are an Authorized Dealer of Carrier HVAC equipment. Plus, we have been a proud recipient
of the Carrier President’s Award for 17 years straight.
The Carrier President’s Award is given to a small selection of Carrier Factory-Authorized Dealers who are able to score highly on Carrier’s list of established standards. Among others, these standards measure brand recognition, industry experience, and leadership. We are the only contractor in Illinois to receive this award for 17 years running.
Allied Air Conditioning & Heating
Over 55 Years as the Most Trusted
Heating & Air Conditioning Company
in Libertyville & Palatine
Allied Air Conditioning & Heating is proud to be a family-owned and locally operated HVAC company serving Libertyville, Palatine, and Northwest Chicagoland since 1969.
While many familiar HVAC companies have been acquired by private equity groups, Allied remains independently family-owned. We answer to our customers and communities—not outside investors. That independence allows us to focus on accurate diagnostics, practical recommendations, and long-term relationships rather than short-term sales targets.
Our NATE-certified technicians uphold that customer-first standard during every service call. We treat customers like family, care for their homes like our own, and work to remain the company they feel confident recommending to friends and neighbors.
Learn more about why family ownership matters when choosing an HVAC company.
Learn MoreTrusted Pool Dehumidifier Services in Palatine, IL
We’re not just an HVAC company—we provide quality pool dehumidifier services, including installation, repair, and maintenance. Ask us about the latest pool dehumidifier models.
Our NATE-certified team is constantly investigating the latest industry products to deliver an unmatched level of comfort and efficiency in your home.
Allied Air Conditioning & Heating
What Our Customers
Say About Us
We moved into a new house recently and Allied was recommended to us by my best friend.
We had them install a new humidifier and zone the system. On moving day (Friday) at 3 pm when we showed up we found the AC wouldn't shut off. I texted my tech with hopes of getting on the schedule for the following week since it was late Friday. He said someone would be there in 30 min. They stayed for 2 hours and fixed a faulty wire and it was all covered under warranty. Can't argue with customer service like that. Highly recommend if you want dependable folks that are very responsive.
Molly Struve
Palatine, IL
We were extremely pleased by the service that Allied provided us.
Our A/C went out over the 4th of July we knew we needed a new system installed asap (we knew it was on its last leg). We contacted them and two other companies for comparison quotes. Allied was out here first thing July 5th to assess and provide a quote. In the end we decided to go with them. They were professional, thorough and very detailed in options and quotes.
Donna Rosen
Palatine, IL Moved into the neighborhood and Allied HVAC had been recommended from my brother to replace both our furnace and ac unit.
Very professional from the start with a quote from Chris B. in sales which lead to an install date of my choice. On the day of the installation Jeff and Jackson arrived right on time as requested. The installation was prompt and done in a timely matter, and it they explained exactly what needed to be done from start to finish.
J. Almdale
Libertyville, IL 
Service Areas
- Lake Forest, IL
- Lake Zurich, IL
- Buffalo Grove, IL
- Grayslake, IL
- Libertyville, IL
- Arlington Heights, IL
- Barrington, IL
- Vernon Hills, IL
- Hoffman Estates, IL
- Mundelein, IL
- Wilmette, IL
- Highland Park, IL
- Winnetka, IL
- Glencoe, IL
- Barrington Hills
- North Barrington
- Northbrook
- Deerfield
Heating & Cooling
More Services
Address
Palatine, IL
500 E Northwest Hwy Palatine, IL 60074 847-359-4500Libertyville, IL
203 Peterson Rd Libertyville, IL 60048 847-367-8989Hours
Monday - Friday: 7am - 5pm
Saturday: 8am - 12pm
