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 Needs
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Experience Year-Round Comfort Without Breaking The Bank With
Our Flexible Financing Solutions!
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Brennan Heating & Air Conditioning, Inc.

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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


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Asked Questions

To provide you with comfort for life which is represented and reinforced in the Daikin Comfort Promise. If, for any reason, our company has not met your expectations within one year of your equipment or system installation, we will return to your house to resolve any issues you have with your installation at no cost to you. As part of formally maintaining the Daikin Comfort Pro distinction, we will make all reasonable efforts to resolve any concerns you have within one year of your equipment installation. With the Daikin Comfort Promise, you can have peace of mind that we will continue to earn your business well after the sale.

The Daikin Difference is redefining home comfort with some of the most technologically and aesthetically advanced solutions. Our energy-intelligent systems provide an unprecedented level of individual comfort and control. Beyond our products and solutions, our commitment to personal service and manufacturing in North America is what makes us stand out from the pack, leading with air intelligence. User-friendly designs and our passion for innovation is the hallmark of Daikin. As a leader in our industry, our products provide high-efficiency solutions through zoning capability, advanced designs, and easy, reliable service. 

Daikin systems are backed by comprehensive warranties, including a 12-year parts warranty on all products. Select Daikin products, such as furnaces, offer even more coverage, with 12-year unit replacement and lifetime heat exchanger warranties in addition to the standard parts warranty. To determine the exact warranty details for your specific Daikin product, speak with one of our experts.

Daikin frequently offers rebates and incentives on its heating & cooling Systems.The specific rebates available will vary based on location, time of year, and product.It is best to contact your local Daikin dealer to inquire about Current rebates in your area and to see how you can take advantage of these Offers. Your local dealer will have the most up-to-date information on Daikin Rebates and will be able to provide guidance on how to qualify for them.

Service Areas

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