Palatine, IL: 847-262-3349 Call or Text Today
24 Hour Emergency Service
Libertyville, IL: 847-316-0591 Call or Text Today

As one of the largest HVAC contractors in the Northwest Suburbs of Chicago, Allied Air Conditioning & Heating Corporation has the resources to not only properly maintain your heating system, but to make sure service is wonderfully convenient. Our team of licensed technicians and fleet of fully-stocked service trucks ensure flexible appointment times, punctual arrival, and quick turnaround on all projects. There’s no mess, no stress, and you enjoy an ongoing list of rewarding benefits.

Reliable Heating Service in Mundelein, Vernon Hills, Arlington Heights, Barrington, Inverness & Hoffman Estates, IL

With meticulous cleaning, tuning, and troubleshooting, we head off problems before they start, significantly extend the life of equipment, restore sound levels, maximize energy efficiency, keep running costs low, ensure healthy air quality, enhance comfort, and verify safe operation. Through hard work and professionalism, we make sure there’s no reason to neglect necessary maintenance and every reason to choose Allied Air Conditioning & Heating Corporation to handle it.

For heating service you can count on every season, call Allied Air Conditioning & Heating Corporation!

The majority of manufacturers require annual maintenance in order to maintain warranty coverage for your heating system. Protect your investment against damage and loss of coverage. Call on Allied Air Conditioning & Heating Corporation for upkeep, and we’ll stand behind our work with a no-breakdown guarantee. If you should need service during the season, we’ll waive the diagnostic fee and return at no charge. As a Carrier Factory Authorized Dealer, our team is highly trained, consistently updated, and we adhere to proven procedures to optimize essential components. Our NATE-certified technicians work on all makes and models, enhancing reliability and performance, whether your system is brand new or very old. Allied Air Conditioning & Heating Corporation brings trustworthy solutions to home and business owners across Mundelein, Vernon Hills, Arlington Heights, Barrington, Inverness & Hoffman Estates, IL.


Interested in a boiler for your home or commercial space? Allied Air Conditioning & Heating Corporation partners with IBC and Carrier brands to not only ensure the right fit for any demand but outstanding reliability and lasting performance.

Learn More

Through our relationship with Wells Fargo Bank, N.A., participating HVAC dealers offer a variety of flexible options for financing your new HVAC product or system. That way, you can invest in your home’s comfort without breaking your monthly budget.

Learn More
Allied Air Conditioning & Heating Corporation
Carrier President’s Award Winner For 14 Years In A Row