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Carr's Air Maintenance, Ltd.
"Trusted Since 1992 – All Makes, All Models, Always Ready"
About Us
Since 1992, Carr’s Ait Maintenance, Ltd. has been more than just a heating and cooling company—we’ve been a trusted part of the community. Founded and operated by the Carr family, our business was built on a simple mission: to help our neighbors stay safe and comfortable in their homes and workplaces, no matter the season.
From day one, we’ve believed in doing things the right way—with honesty, reliability, and a personal touch. Being family-owned and operated means we treat every customer like one of our own. Whether it’s a routine tune-up or a middle-of-the-night emergency, we show up ready to help, because your comfort is our priority.
What makes us different? We service all makes and models, so no matter what system you have, we’ve got the expertise to keep it running smoothly. And with 24-hour emergency service, we’re always just a phone call away—ready to restore warmth, cool air, and peace of mind when you need it most.
At Carr’s Ait Maintenance, Ltd., we’re proud of our roots, our reputation, and the relationships we’ve built over the years. Thank you for letting us serve you—and for being part of our story.
Areas Served
Marengo, IL | Woodstock, IL | Union, IL | Harvard, IL | Belvidere, IL | Genoa, IL | Huntley, IL | Kingston, IL | Kirkland, IL
Our Professional Associations
- Marengo Chamber of Commerce
What We Offer
Our Specialties include:
- At Carr’s Ait Maintenance, Ltd., quality service runs in the family. As a family-owned and operated business, they bring a personal touch to every job, treating customers like neighbors and every home like their own. Their team is proud to service all makes and models, offering expert care across a wide range of heating and cooling systems. Whether it’s a classic boiler or a modern mini-split, Carr’s combines deep industry knowledge with genuine dedication to keeping your space comfortable year-round.
Our Services include:
- 24-Hour Emergency Service Available: When the unexpected happens—whether it’s a broken boiler in the middle of winter or a failed AC unit during a heatwave—Carr’s Ait Maintenance, Ltd. is ready to respond. Their 24-hour emergency service ensures that comfort and safety are never out of reach, no matter the time of day or night.
- Boilers and Hydronic Systems
- Boilers
- Service All Makes and Models: Carr’s Ait Maintenance, Ltd. brings warmth to homes and businesses with expert care in heating systems. From traditional boilers to advanced hydronic setups, their team is equipped to service all makes and models. Whether it’s routine maintenance or a full system overhaul, they deliver dependable solutions that keep the cold at bay.
- Air Conditioning Units
- Ductless and Mini-Splits
- Heating and Cooling: Staying cool and comfortable is easy with Carr’s Ait Maintenance, Ltd. Their cooling services cover everything from central air conditioning units to energy-efficient ductless and mini-split systems. Whether you're upgrading your system or need a quick fix, their technicians ensure smooth operation and optimal indoor climate control.
- UV Lights: For those looking to enhance air quality and reduce allergens, Carr’s Ait Maintenance, Ltd. offers UV light solutions. These systems work seamlessly with your HVAC setup to neutralize airborne contaminants, promoting a cleaner, healthier environment for your family or workplace.
Our Brands include:
- Weil-McLain Boilers
- Armstrong
Our Products include:
- UV Lights
- Boilers
- Air Conditioning Units
Testimonials
On 6/4/2025
Fischer’s
had this to say:
Carrs have taken care of our residential heating & cooling needs as well as when I had my business! Honest & efficient as well!
Testimonial written by Fischer’s on this site.
On 2/27/2025
Scott L.
had this to say:
The blower motor on our 18 year old furnace went out on very cold afternoon. Eric was out in a couple of hours and replaced the motor. In less than 5 hours from the motor burning out, we had heat again.
I've called Carr's Air Maintenance for our central air issues too. I've never been disappointed in their work.
Testimonial written by Scott L. on this site.
On 9/21/2023
Jack S.
had this to say:
Recently had Jay and Ken do service on our furnace. Both of them were very professional and did a great job. Really appreciated the explanations that Jay gave and the time both of them took to make sure we understood what they needed to do.
On 9/4/2023
Joey Tornado
had this to say:
Service done right! The only team my family has used since the 90s. The Carr's have been honest, fair, up front, and very informative. If you're in need of assistance, Do Not hesitate to contact them, you'll be glad you did.
On 3/31/2023
Anthony Follmann
had this to say:
I had replace our 130 year old furnace. The price was reasonable, and the techs were both friendly and professional. Great company to work with!
Contact Us
Carr's Air Maintenance, Ltd.
Marengo, IL 60152
Phone: (815) 568-6107
Email: eric
Where To Find Us
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Payment Types Accepted
Visa, MasterCard, Discover, American Express, PayPal, Personal Checks, Debit Cards, Cash
Our Hours
Holiday Hours May Vary. Please Call For Details.
Monday: Open 24 Hours
Tuesday: Open 24 Hours
Wednesday: Open 24 Hours
Thursday: Open 24 Hours
Friday: Open 24 Hours
Saturday: Open 24 Hours
Sunday: Open 24 Hours By Appointment
FAQ
Yes! We proudly service all makes and models, including older systems and newer technologies.
Do you install ductless or mini-split systems?
Absolutely. We specialize in ductless and mini-split air conditioning systems, perfect for efficient and flexible cooling.
What types of heating systems do you work on?
We service boilers, hydronic systems, furnaces, and heat pumps—offering repair, maintenance, and installation.
Do you offer UV light installation for air quality?
Yes, we sell and install UV lights to help reduce airborne contaminants and improve indoor air quality.
Can UV lights really improve indoor air quality?
Yes! UV lights help reduce airborne bacteria, viruses, and allergens. They’re a great addition to your HVAC system for a cleaner, healthier home environment.
How do I know if I need to replace my HVAC system?
If your system is over 15 years old, requires frequent repairs, or struggles to maintain temperature, it may be time to consider a replacement. We can assess your system and recommend the best solution.
Yes! We provide 24-hour emergency service to ensure your comfort and safety at all times.
How often should I have my HVAC system serviced?
We recommend annual maintenance for both heating and cooling systems to keep them running efficiently and reliably.
What should I do if my furnace stops working in the middle of the night?
Call us right away at (815) 568-6107! We offer 24-hour emergency service, so you won’t be left in the cold. Our technicians are ready to respond quickly and restore your heat.
We serve Marengo, IL and surrounding communities. If you're nearby and unsure, feel free to contact us!
Are your technicians certified?
Yes, our technicians are highly trained and certified, bringing years of experience and professionalism to every job.
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