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At R. L. Lyon, Inc. Heating & A.C., we’re proud to be one of the oldest and most trusted HVAC companies in Morris, IL, serving homeowners and businesses across Grundy County for over 100 years.
Founded in 1919, our company began with a simple promise: to deliver dependable heating and cooling solutions with integrity, craftsmanship, and personal attention. That promise still guides us today. What started as a small, local operation has grown into a full-service HVAC provider that continues to serve the region with pride, professionalism, and purpose.
We are locally owned and operated, and every member of our team lives and works right here in the community. When you choose R. L. Lyon, you’re choosing more than just a service provider; you’re choosing neighbors who truly care about your comfort and safety.
Our certified technicians are trained to service all major HVAC brands and systems. Whether we’re installing a new air conditioning unit, repairing a broken furnace, or providing routine maintenance, we approach each job with precision, honesty, and a customer-first mindset.
From day one, our mission has remained the same: to provide honest, high-quality HVAC services you can trust. We believe that transparency, reliability, and workmanship should never be optional; they should be built into every visit, every time.
As a bonded and insured HVAC contractor, we hold ourselves to the highest standards. Our goal is to build long-term relationships through work you can feel confident about, backed by a team that genuinely values your satisfaction.
When it comes to HVAC companies in Morris and the surrounding area, we know you have options. Here’s what makes R. L. Lyon Heating & A.C. different:
Our team is made up of fully licensed, experienced professionals who are friendly, respectful, and focused on getting the job done right — the first time.
We specialize in everything from residential and commercial HVAC installation to emergency repairs, air quality solutions, system maintenance, and custom sheet metal fabrication. No job is too large or too small.
We don’t believe in surprises. From your first call to project completion, we keep you informed every step of the way. We’re here to answer your questions, explain your options, and deliver solutions that make sense for your home or business.
We’re committed to doing things the right way, not the fast way. We focus on details, use quality parts and equipment, and never cut corners — because our reputation depends on your results.
Being in business for over a century didn’t happen by accident. We’ve grown by earning trust, delivering results, and staying true to our roots in hard work, accountability, and customer care.
We’ve helped generations of families and businesses across Morris, Minooka, Channahon, and Grundy County stay warm in the winter and cool in the summer. Our trucks have weathered storms, summers, and freezing nights, always showing up when customers need us most.
We don’t take that responsibility lightly. And we’re not done. We’re continuing to modernize, improve, and expand our services to meet the needs of today’s homes and businesses — with the same values we started with in 1919.
We proudly serve customers in:
Not sure if you’re in our service area? Just give us a call and we’ll be happy to help.
Get quick answers to your most common heating and cooling questions, from service timelines to system care and replacement options.
We provide residential and commercial HVAC services across Morris, IL and Grundy County—including installation, maintenance, repair, and emergency service for heating, air conditioning, furnaces, and indoor air quality systems.
We’ve proudly served the local community since 1919—over 100 years of trusted service.
Yes, we offer certified emergency services to handle urgent heating or cooling breakdowns when you need us most.
Absolutely. We install and replace furnaces, air conditioners, boilers, heat pumps, thermostats, and more, as well as maintain and repair existing equipment.
Yes, we serve both homeowners and businesses throughout Morris, IL, and Grundy County.
We carry trusted brands like Lennox and Ducane Systems, and all installations and products come from reputable, licensed dealers.
Yes. We provide regular maintenance, safety inspections, tune‑ups, and sheet‑metal and duct services to keep systems running efficiently.
For reliable winter performance, we recommend annual maintenance on your furnace, particularly before winter begins. Regular tune‑ups improve efficiency, help avoid breakdowns, and extend system life.
If your furnace is more than 10–15 years old, requires frequent repairs, is noisy, has rising energy bills, or provides uneven heating, it’s probably time for replacement. Let our certified technicians evaluate how a newer, more efficient unit can save on costs and improve comfort.
Poor cooling or airflow can result from dirty filters, low refrigerant, blower issues, or equipment malfunctions. We offer comprehensive AC repair, including filter changes, refrigerant charging, coil cleaning, and blower motor service—to quickly restore proper cooling.
If your AC is over 10 years old, it may be more economical to replace it, especially when repair costs approach replacement cost, or it loses energy efficiency. We offer free estimates and can help determine the right decision for your home’s comfort and budget.
We offer installation and service for air purifiers, humidifiers, dehumidifiers, ventilation systems, and filtration upgrades, aimed at improving air quality and comfort in homes and businesses.
Yes, we provide ventilation planning and installation services, including hood vents and ducting, for both residential and commercial applications, ensuring better air circulation and compliance with code requirements.
We offer programmable and smart thermostat installations, which help optimize system efficiency and control indoor comfort more effectively, reducing energy use and utility bills.
We accept major credit cards and checks, and offer financing options for eligible projects. While the Morris site mentions payment methods, we recommend confirming available plans, such as through EnerBank financing or maintenance agreements for local customers.
If you’re looking for an HVAC partner you can trust — not just today, but for years to come — you’ve found the right team. Whether you need heating repair, AC installation, or ongoing maintenance, we’re ready to help.
Built on Honesty, Delivered with Pride.