About Us

25+ Years of HVAC Experience

We bring decades of hands-on expertise in furnace and AC installation, repair, and maintenance across Colorado homes.

About Duffey’s Heating & Air Conditioning – Trusted HVAC Experts in Littleton, CO

At Duffey’s Heating & Air Conditioning, we’ve been serving homeowners in Littleton, CO, and surrounding communities since 2005 with reliable HVAC solutions. As a family-owned and locally operated company, we specialize in furnace installation, air conditioning repair, and seasonal maintenance to keep your home comfortable year-round. With over 25 years of hands-on experience, our licensed technicians deliver honest service, energy-efficient solutions, and dependable results you can trust.

Why Choose Duffey’s Heating & Air Conditioning

At Duffey’s, we pride ourselves on delivering reliable heating and cooling services backed by decades of experience. Our team is dedicated to keeping your home comfortable year-round with honest pricing, fast response times, and expert workmanship you can trust.

Award-Winning

Serving Littleton, CO & Surrounding Communities with Trusted HVAC Solutions

Duffey’s Heating & Air Conditioning proudly serves homeowners in Littleton, Highlands Ranch, Lakewood, Centennial, and nearby areas. Whether you need a quick AC repair or a full furnace replacement, our local, family-owned team is here to deliver dependable, affordable comfort—backed by over 25 years of industry experience.
Amira K.
Amira K.
Duffey’s Heating & Air Conditioning was quick to respond when our furnace stopped working in the middle of winter. The technician explained everything clearly and gave us an honest price. We had heat back the same day. Highly recommend!
Sara .B
Sara .B
We recently replaced our old furnace with a new high-efficiency unit from Duffey’s. The team was professional, on time, and cleaned up after the job. Our home is much more comfortable, and our energy bill has already gone down.
Leo D.
Leo D.
When our AC broke during a heatwave, Duffey’s came out the same day. The repair was fast, affordable, and the technician was very knowledgeable. It’s great to work with a local, family-owned company you can trust.