Business Details
50+ Years
experience
Emergency
services
Trusted HVAC Services in Jacksonville, IL
Brennan Heating & Air Conditioning was founded in 1947 by Richard W. Brennan and has remained a family-owned business for over seven decades. Starting as a one-man operation, we have grown into a 10,000-square-foot facility with two warehouses, serving residential and commercial clients across central Illinois. Our team of STAR HVACR Mastery Certified and NITC Certified technicians specializes in heating, air conditioning, ductless systems, and sheet metal fabrication. We invest in advanced equipment like plasma cutters and square wave welders to deliver precision work for projects ranging from galvanized ductwork to stainless steel tanks. With experience serving major corporations and educational institutions, we combine technical expertise with personalized service.Our commitment to innovation includes offering energy-efficient solutions and flexible financing options for customers. We maintain 24/7 emergency service availability and provide extended warranties on select products. Our technicians receive ongoing training to stay current with evolving HVAC technologies and industry standards. We serve clients in Jacksonville, IL, and surrounding areas, including Murrayville, Winchester, and New Berlin. Backed by decades of experience and a focus on customer satisfaction, we aim to be the trusted HVAC partner for our community.
Services
AC Repair
Heating Installation
Ductless Systems
Sheet Metal Fabrication
Indoor Air Quality
Commercial Refrigeration
Plumbing Services
Air Duct Cleaning
Details
- Year established: 1947
Highlights and features
- Family-owned business with 75+ years of local experience
- Certified technicians with advanced training and equipment
- 24/7 emergency service availability for urgent needs
- Flexible financing options for HVAC upgrades
- Serving residential and commercial clients across central Illinois
Associations and certifications
- STAR HVACR Mastery Certified
- NITC Certified
What people say
Great service
Quick to respond
Nice and willing to help
Best Heating and A/C in Town
Amazing service
Services
AC Repair
Our certified technicians provide prompt AC repair services for residential and commercial properties. We diagnose and fix cooling system issues ranging from refrigerant leaks to compressor failures. With 24/7 emergency availability, we ensure minimal downtime during peak summer months.
Heating Installation
We offer professional heating system installation for gas, oil, and electric furnaces. Our team handles complete system replacements and upgrades, ensuring proper sizing and energy efficiency. We work with leading brands and provide extended warranty options.
Ductless Systems
Specializing in ductless heating and cooling solutions for homes and businesses. Our technicians install and service energy-efficient mini-split systems that provide zoned temperature control without traditional ductwork. Ideal for additions or retrofitting older buildings.
Sheet Metal Fabrication
Custom sheet metal fabrication services for HVAC components and industrial applications. We create ductwork, machinery guards, and specialized metal parts using advanced equipment like plasma cutters and heavy-duty shears.
Indoor Air Quality
Comprehensive indoor air quality services including air duct cleaning, sealing, and installation of purification systems. We offer UV lights, humidifiers, and carbon monoxide detectors to improve residential and commercial air quality.
Questions
What HVAC services do you offer?
We provide AC repair, heating installation, ductless systems, sheet metal fabrication, indoor air quality solutions, and commercial refrigeration services.
Do you offer emergency HVAC service?
Yes, we provide 24/7 emergency service for urgent heating and cooling needs.
What areas do you serve?
We serve Jacksonville, IL and surrounding areas including Murrayville, Winchester, New Berlin, and other central Illinois communities.
Are your technicians certified?
Yes, our technicians are STAR HVACR Mastery Certified and NITC Certified for professional expertise.
Do you offer financing options?
Yes, we offer flexible financing solutions for HVAC system upgrades and replacements.
What HVAC brands do you work with?
We work with leading brands including Daikin and offer various product lines for cooling, heating, and indoor air quality systems.
Reviews (4)
Gary Goodwin
Dec 26, 2021
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Best Heating and A/C in Town! Had Furnace Problems 2 Days before Christmas! From the Time I Called, they had everything up and Running less than 4 Hours! Great Company! Thank You!
Stephanie Sieving
Oct 05, 2019
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Great service! Everyone is so nice and willing to help. The guys are great at explaining everything so that it is easy to understand.
Don McGee
Aug 08, 2019
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This company and service reps are very customer, service oriented. Would not hesitate to recommend them to friends & family.
Pam Helm
Aug 07, 2018
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Fantastic after hours service. Chris made a special trip to Springfield for parts to ensure we had heat ASAP. Very client focused team, quick responses, arrived on time with prompt follow up. I will use Brennan's again and highly recommend them!