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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:

Our Brands include:

Our Products include:

Testimonials

On 1/24/2025 koert brown.koert@mail.ic.edu had this to say:
Brennan has been doing my HVAC work for about a year now. I have been very pleased with their service and timeliness. Brennan also recently just started doing plumbing work for me and my rental business over the past two months. Thier responsiveness and quality of work on the Plumbing side has been exceptional. For example, I had a pipe break at a house at 8:30 p.m. I called and they were there by 9:15 on an emergency call. I cannot say enough about how impressed I am with their service thus far.

On 1/24/2025 KBrown had this to say:
Brennan has been doing my HVAC work for about a year now. I have been very pleased with their service and timeliness. Brennan also recently just started doing plumbing work for me and my rental business over the past two months. Thier responsiveness and quality of work on the Plumbing side has been exceptional. For example, I had a pipe break at a house at 8:30 p.m. I called and they were there by 9:15 on an emergency call. I cannot say enough about how impressed I am with their service thus far. Testimonial written by KBrown on this site.

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.

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

🌿 With spring in full bloom, make sure your commercial refrigeration systems are running efficiently to keep your business thriving. Our 24-hour emergency service and preventative maintenance plans ensure you’re never left in the cold. Trust Brennan Heating AC for reliable refrigeration solutions!

Spring is the perfect time to upgrade your cooling systems! At Brennan Heating AC, we specialize in AC installation and repair, ensuring your home stays comfortable as the temperatures rise. Our expert team also provides air duct cleaning to improve your indoor air quality. Enjoy a breath of fresh air this season!

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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