Proudly Serving
Our Community Since 1947

We Serve Residential & Commercial Customers In
Jacksonville,IL & The Surrounding Areas
(217) 245-7181
Our Skilled Technicians Can Handle
All Your Heating, Air Conditioning,
& Sheet Metal Needs
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Experience Year-Round Comfort Without Breaking The Bank With
Our Flexible Financing Solutions!
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About
Brennan Heating & Air Conditioning, Inc.

Brennan sheet metal team outside office
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Brennan Heating & AC, Inc. was founded in 1947 by Richard (Dick) W. Brennan. Since the beginning, Brennan Heating & Air has remained a family owned and operated business. What started out as a one man shop behind the Brennan house is now a 10,000 square foot shop, showroom and office complex with two separate warehouses.

Early on, Dick had an idea for his business to not only consist of a duct work, but, also, be a versatile shop that could work with different types of metal,regardless of thickness. Whenever equipment needed replaced, he looked to the future and purchased faster and heavier equipment.

Our technicians are:

Customer Reviews

Featured
Manufacturer

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Frequently
Asked Questions

Yes. Carrier is one of the most trusted HVAC manufacturers in the industry, known for durable equipment, advanced technology, and consistent performance. When properly installed and maintained, Carrier systems are built to last for many years.

Yes. Brennan Heating & Air Conditioning professionally installs, services, and maintains Carrier heating and cooling systems. We help you select the right system and ensure it’s installed correctly for maximum efficiency and comfort.

Carrier offers a wide range of high-efficiency air conditioners, heat pumps, and furnaces designed to reduce energy usage and lower monthly utility bills. Efficiency ratings vary by model, and we can help you choose the best option for your home or business.

With proper maintenance, most Carrier HVAC systems last between 15–20 years. Regular tune-ups and timely repairs can help extend the life of your system and keep it running efficiently.

Yes. Many Carrier systems are compatible with smart thermostats, allowing you to control temperature, improve efficiency, and manage comfort from your phone or device.

Yes. Carrier provides manufacturer warranties that vary by system and model. Brennan Heating & Air Conditioning will review warranty options with you and ensure your system is properly registered.

Choosing the right HVAC system depends on factors like property size, layout, energy goals, and budget. Our team will evaluate your space and recommend the best Carrier system to meet your needs.

Service Areas

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