At R. L. Lyon, Inc. Heating & A.C., we understand that comfort is more than a luxury — it’s essential. Based in Morris, IL, we’ve proudly served the Grundy County community with honest, high-quality HVAC services for years. From new construction to emergency repairs, our experienced technicians handle it all.
Whether you’re a homeowner or a business owner, you can count on us for fast, reliable, and warrantied HVAC solutions that keep your system running smoothly year-round.
Illinois weather can be unpredictable — with icy winters and hot, humid summers. That’s why it’s so important to have an HVAC company you can trust.
Working with R. L. Lyon means:
When your HVAC system goes down, you don’t want to wait days for a fix. That’s why our team offers same-day service and 24/7 emergency repairs to restore comfort fast.
We’ve built our reputation on honesty, transparency, and results.
When you work with us, you get:
We’re not a franchise, we’re your neighbors. Our team takes pride in providing the kind of service we’d want in our own homes.
We’re proud to provide comprehensive residential and commercial HVAC services throughout Morris and the surrounding areas.
Get quick answers to your most common heating and cooling questions, from service timelines to system care and replacement options.
Yes, we provide 24/7 emergency repair services, including evenings, weekends, and holidays.
Our technicians work with all major HVAC brands, including older and newer systems.
Yes, financing options are available, and we’ll walk you through the process.
Absolutely. Our HVAC maintenance plans include seasonal checkups, priority scheduling, and repair discounts.
See what homeowners and businesses are saying about their experience with our reliable, professional, and honest HVAC services.
Posted on Cindy BrandolinoTrustindex verifies that the original source of the review is Google. We have been using R L Lyon for a few years, they service our home as well as our commercial properties. They are very punctual, do a good job, and are reasonably priced. I would highly recommend using them for your HVAC repairs or replacementPosted on Larry TincherTrustindex verifies that the original source of the review is Google. We contacted RLLyon Heating & Air for repair of furnace while temperatures were below zero. They came immediately, and determined furnace needed replaced. RLLyon quoted a price and once i okeyed the quote they ordered new furnace and replaced furnace , once they recieved it in shop. All the while they were swamped with business. RLLyon Heating & Air is the real deal, top notch service. I highly recommend them for your heat/service if ever needed!Posted on Steve PfaffTrustindex verifies that the original source of the review is Google. Technician was very prompt, was thorough. Cleaned and inspected furnace in a Very timely manner.Posted on D KTrustindex verifies that the original source of the review is Google. Great to do business with. Staff is very friendly and answered all questions I had.Posted on Steve whiteTrustindex verifies that the original source of the review is Google. Was having problems with furnace. Called Lyon because of previous dealings. They arrived later that day, diagnosed the problem and ordered the parts needed and returned the next day and replaced the part. Very prompt and friendly service. Would recommend R.L.Lyon to anyone requiring service.☆☆☆☆☆Posted on Patricia PeeplesTrustindex verifies that the original source of the review is Google. Tech was courteous. Explained the problem so we could understand.
If you’re dealing with HVAC problems or want to prevent them, R. L. Lyon, Inc. Heating & A.C. is just a call away. We make it easy to schedule repairs, request a quote, or get expert advice.