Allegiance Heating is a premier heating and air conditioning contractor serving the Chicagoland area. Family-owned and operated for over a decade, we've eaed the trust and respect of thousands of clients in Chicago and the surrounding region. In addition to their industry-best knowledge about HVAC systems of all types, our technicians embrace a client-focused philosophy that puts the customer first during every phase of every project. Allegiance Heating is a premier heating and air conditioning repair contractor serving the Chicagoland area.

If you are in need of a Chicago HVAC contractor, call on Allegiance Heating & Cooling. We are a family owned and operated business committed to customer satisfaction. We provide punctual service with prompt arrivals that won't have you wasting time. You can trust in our team of experienced HVAC contractors to always be respectful of your home and property. We provide excellent HVAC service to residents of Crete, Monee, Frankfort, and Homer Glen. Whether you are in need of a new air conditioner or are looking into a geothermal heating system, our dedicated team of contractors is happy to help.

Is your air conditioner capable of keeping you and your family comfortable as the weather heats up? A properly functioning system is crucial to being able to enjoy warmer weather and we understand that at Allegiance. But in order to get the most out of your A/C, it's imperative to have the right team on your side. For nearly two decades, Allegiance has provided elite air conditioning service. Our HVAC contractors always work to help you get the most out of your system. Here's how the process works.

Since 2000, Allegiance Heating & Cooling has been Mokena's choice for premier HVAC service. We understand the inconvenience that often comes with a heater or air conditioner that isn't working the way it should. When you're in need of reliable HVAC repair, it can be easy to pick the wrong company. That's where we separate ourselves from the rest. We've become the trusted home comfort partner for thousands of Illinois and Indiana residents. But it's our attention to the little things that customers appreciate.

When it comes to home heating services, no other local company provides the expertise of Allegiance. Our certified technicians can not only resolve your HVAC dilemmas but also keep your family warm through the Illinois cold. From heating repair and furnace service to everything in between, it's no surprise why thousands of residents have made Allegiance their preferred HVAC choice. Our professionals understand how dangerous a home without proper heating can be during extreme cold. That's where our team comes into play.

I highly recommend Allegiance HVAC! Brian Cusack along with the Allegiance HVAC installation team were extremely professional, knowledgeable, helpfulI, and friendly. I appreciated the straightforwardness of the pricing and the clear and concise process of the installation process. The HVAC installation team were excellent and totally respectful of my home with regards to cleanliness and they thoroughly reviewed the operation of the new AC system.

Excellent and professional workmanship. Fair pricing, knowledgeable staff, and timely installation. I would highly recommend their service to anyone that needs HVAC work.

My central air went out in the middle of the night so I called Allegiance HVAC when they opened and they were able to come out that day. The serviceman was found the problem right away and fixed my AC. I should mention that it was 88 in my house by that time.

The service man was friendly and knowledgeable. He called and gave me a heads up that he was going to be a little late as he was working on another client. His work was efficient and fairly priced. I highly recommend.

What's new?

We would like to express sincere gratitude to our local heroes including first responders and medical personnel by delivering a family meal from Gatto’s on Sunday. If you know a local deserving hero, please reach out to us!

Posted on Jan 21, 2021  •  Facebook

Furnace replacement we did in tinley park a couple weeks ago

Posted on Oct 07, 2020  •  Facebook

Finishing the HVAC for this new construction monster home today.

Posted on Oct 02, 2020  •  Facebook

Pretty excited that from now on we will be hand delivering welcome boxes to all of our new construction homeowners! 🏘🏡 They’re filled with all kinds of awesome product and cool savings! 🥳🥳🥳

Posted on Sep 22, 2020  •  Facebook

⏰ Attention: Tinley Park, Orland Park, New Lenox, Frankfort, Mokena, and surrounding areas- schedule your appointment today❗️⏰ Booking appointments NOW!!⏰ 1st 20 customers receive a FREE Furnace clean & check👉Whole house duct cleaning with the BRUSH BEAST👉Duct Sanitizing and Fogging

Posted on Sep 21, 2020  •  Facebook

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