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Brennan Heating & Air Conditioning, Inc.

"Family Owned Since 1947"

About Us

We're Brennan Heating AC, and we've been a Heating Contractor in Jacksonville, IL, since 1947. We offer a wide selection of services including AC installation and repair, air duct cleaning, geothermal repair, and heating, and cooling solutions. Our expert technicians are certified and trained to service all makes and models of heating and cooling systems, from servicing to equipment replacement. .  We're looking forward to partnering with Jacksonville consumers to continue to provide a premier HVAC experience. We would like to personally invite you to contact us for all your needs today!

Areas Served

Jacksonville, IL | Pittsfield, IL | Beardstown, IL | Virginia, IL | Waverly, IL | Petersburg, IL | Greenfield, IL | New Berlin, IL | 45 Mile Radius

Our Professional Associations

Our Certifications

What We Offer

Our Specialties include:

Our Services include:

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Testimonials

On 10/22/2024 Lori S. had this to say:
Professional, helpful and timely. Testimonial written by Lori S. on this site.

On 10/15/2024 Sue Walker had this to say:
We greatly appreciate Brennans and the good job they do servicing our furnace and air conditioner.

On 10/10/2024 Stephanie S. had this to say:
Brennan's has been servicing my furnace and AC since I have moved into my house in 2014. They are dependable and informative. Every time they have been in my home they have been very respectful and cleaned up when they are done. I have two large dogs and they shed a lot. Brennan's does duct cleaning and that was amazing to have done. I will continue to use them in the future.

On 7/24/2024 Jane Mace had this to say:
We had our ac and furnace replaced and they were knowledgeable,friendly, and accommodating! Customer service was excellent and I felt they went above and beyond during our installation. The price was reasonable and no surprise costs. We look forward to being a customer for life!

On 7/22/2024 Kylie Tomm had this to say:
Brennan Heating & Air Conditioning has been absolutely FANTASIC! We just moved into our home at the beginning of May and the previous owners used a different HVAC company to service the geo-thermal and we had called them before calling Brennan and to say the least, we weren't the least bit impressed. The previous company said our system had no issues other than the drain was plugged up. We were still having problems with our system locking out and not cooling, so after some searching, I called Brennan. They quickly had someone out to our house to diagnose the problem. They were here a few days later once the part came in to replace it. Brandon the technician they sent out was fantastic! Fast forward to this weekend, an issue Bradon had found on the previous trip out (that we were hoping wouldn't cause issues for another 6 months) caused problems causing our air to go out. He came out at 6 pm on Saturday night and confirmed that was the problem. First thing this morning he drove to get the part we needed and was here by 8:30 am! He is going through the entire system and verifying that no other issues are present and taking care of anything he finds. I have nothing but AMAZING things to say about their customer service and I could not be happier with who I chose to take a second look at our system. They have our loyalty forever and I wish I could do more than write a Google review! If you are needing an HVAC company to service your system, give them a call and you will NOT be disappointed!

Contact Us

Brennan Heating & Air Conditioning, Inc.
619 E Morton Ave Jacksonville, IL 62650
Phone: (217) 245-7181
Fax: (217) 245-0352

Across from NAPA

Where To Find Us

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Payment Types Accepted

Cash, Checks, Credit Cards

Our Hours

24 Hour Emergency Service

Holiday Hours May Vary. Please Call For Details.

Monday: 8:00 AM - 4:30 PM
Tuesday: 8:00 AM - 4:30 PM
Wednesday: 8:00 AM - 4:30 PM
Thursday: 8:00 AM - 4:30 PM
Friday: 8:00 AM - 4:30 PM

News

Since 1947, Brennan Heating and Cooling has been a trusted name in Jacksonville, making homes comfortable one service at a time. But we’re not just about keeping you warm in winter and cool in summer anymore—we’re proud to announce that we now offer plumbing services too! From leaky faucets to water heater installations, we’ve got your plumbing needs covered with the same care and expertise you’ve relied on for generations. Ready to experience complete home comfort from your local experts? Reach out today!

On 4/19/2023 this was posted:
Don't let the heat catch you off guard this spring! Keep your home cool and comfortable with Brennan Heating & Air Conditioning, Inc. Our team provides reliable air conditioning repair and maintenance services to keep your system running smoothly all season long. From tune-ups to installations, we've got you covered. Call us today to book your appointment
Expires 6/30/2023

On 5/5/2022 this was posted:

Now Hiring! Looking for qualified employees to apply. Please send resumes to melinda@brennansheetmetal.com

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