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Mavec Heating, A/C & Refrigeration
"No Service Is Too Small"
About Us
Mavec Heating, A/C & Refrigeration is your trusted expert for reliable climate control solutions throughout Marseilles, IL, Morris, Seneca, Ottawa, and the surrounding areas in LaSalle and Grundy counties. We proudly serve both residential and commercial clients, handling projects of every size with unmatched skill and professionalism.
Our team repairs all makes and models of heating, cooling, and refrigeration systems, ensuring your equipment runs efficiently year-round. As a licensed, bonded, and insured company, we provide dependable service you can feel confident about. We are also proud dealers of American Standard, offering high-quality products known for durability and performance.
Whether you need heating, cooling, or refrigeration service, installation, or maintenance, you can count on Mavec Heating, A/C & Refrigeration to deliver exceptional results. Contact us today for fast, reliable service you can trust.
Areas Served
Morris, IL | Channahon, IL | Joliet, IL | Marseilles, IL | Minooka, IL | Ottawa, IL | Seneca, IL | Shorewood, IL | Streator, IL | 50-mile radius | Lisbon, IL | Newark, IL | Sandwich, IL | Grundy County, IL | LaSalle County, IL | Kendall County, IL | Will County, IL | Cambridge, IL | Preston Heights, IL | Grundy, IL
Our Certifications
- Licensed, Bonded and Insured
What We Offer
Our Specialties include:
- At Mavec Heating, A/C & Refrigeration, we pride ourselves on being a versatile and dependable service provider for both residential and commercial clients. Our team is trained to service all makes and models, ensuring that no matter your system’s brand or complexity, we have the expertise to keep it running smoothly. We understand that heating, cooling, and refrigeration issues don’t always happen during business hours—that’s why we offer emergency service on weekends, providing fast, reliable support when you need it most. Whether it’s a home comfort system or a commercial refrigeration unit, Mavec is your trusted partner for quality and responsiveness.
Our Services include:
- Cooling Services: We provide expert air conditioning services for residential, commercial, and park model properties, including rooftop unit installations and maintenance. Our team is equipped to service all makes and models, ensuring reliable comfort during the hottest months.
- Heating Services: From residential heating systems to commercial rooftop units and park model heating, we offer comprehensive heating services tailored to your needs. Our technicians handle repairs, maintenance, and installations with precision and care, keeping your space warm and energy-efficient.
- Refrigeration Services: We specialize in servicing and installing commercial refrigeration systems, including walk-in coolers, reach-in units, beer coolers, and ice machines. Whether you're running a restaurant, bar, or retail space, we ensure your equipment operates at peak performance.
- Repair & Maintenance: Our skilled technicians provide prompt heating and cooling repairs across all system types and brands. With emergency service available on weekends, we’re here when you need us most to restore comfort and functionality to your home or business.
Our Brands include:
- American Standard
- Trane
- RunTru
- Ameristar
Our Products include:
- Furnaces
- Commercial Refrigerators
Testimonials
On 4/25/2026
Kevin
had this to say:
John is a great guy, very honest, punctual and professional. Very fair pricing, I highly recommend his services and he has helped me on multiple jobs.
On 4/20/2026
Michael F.
had this to say:
When shopping for a new HVAC System they will shoot you straight! Others take advantage, Mavec actually helps! A simple repair, and rebuild saved me 20k. Mavec honestly cares and protects the everyday person from the other HVAC providers in the area!
On 2/2/2026
Tom S.
had this to say:
Excellent Service.
My furnace was not working, Jon came out promptly, and got it running, it needed parts which he ordered, when they came in, he put them on my furnace at my convenience that day.
Tom Salomone
On 12/23/2025
Dan Moody
had this to say:
John is honest and his service is the Best! I will be using John for all my services from now on and will recommend him to anyone that needs service as well.
Testimonial written by Dan Moody on this site.
On 11/25/2025
Angela G.
had this to say:
Jon is a straight shooter, honest and reliable. He came highly recommended from a close friend. We found his services to be thorough, timey and efficient.
Contact Us
Mavec Heating, A/C & Refrigeration
Marseilles, IL 61341
Phone: (815) 955-1379
Email: mavec
Where To Find Us
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Payment Types Accepted
American Express, Discover, MasterCard, Personal Checks, Square Accepted, Visa
Our Hours
24 Hour Emergency Service
Monday: 8:00 AM - 5:00 PM
Tuesday: 8:00 AM - 5:00 PM
Wednesday: 8:00 AM - 5:00 PM
Thursday: 8:00 AM - 5:00 PM
Friday: 8:00 AM - 5:00 PM
News
When comfort or refrigeration issues arise, experience matters—and Mavec Heating, A/C & Refrigeration delivers with 25 years of proven service and quality workmanship. From residential heating and cooling to commercial rooftop units, walk-in coolers, ice machines, and repair and maintenance services, our skilled technicians handle every job with precision and care. Serving homes and businesses throughout the area with reliable solutions, flexible service options, and emergency availability, Mavec is here to keep your systems running efficiently year-round.For 25 years, Mavec Heating, A/C & Refrigeration has been the trusted name for dependable comfort and refrigeration services across Marseilles, Morris, Seneca, Ottawa, and surrounding LaSalle and Grundy County communities. Founded in 2000 with the promise that no service is too small, our licensed, bonded, and insured team proudly serves residential and commercial customers alike, providing expert heating, cooling, rooftop units, park model systems, and commercial refrigeration solutions for all makes and models. As American Standard dealers and with weekend emergency service available, you can count on Mavec for reliable comfort when you need it most.
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