Furnace Installation Cost in Denver, CO — 2026 Guide
Complete furnace replacement pricing for Denver — all efficiency ratings, all brands, no hidden costs.
New furnace installation in Denver typically runs $5,400–$7,500 installed in our 2026 quoting. Full furnace + AC replacement projects often land around $10,000–$19,000. Pricing varies with AFUE tier, brand, BTU sizing, ductwork, and electrical needs.
Included in our quotes: equipment, labor, permit ($75–$150), old unit removal, altitude adjustment, startup and combustion testing, and a 1-year labor warranty.
How Colorado HB23-1161 Affects Furnace Installation Costs in Denver
Colorado's HB23-1161 requires new gas furnaces sold in Colorado to meet ultra-low NOx emissions standards — so most new installs are high-efficiency 96%+ AFUE compliant equipment. Existing furnaces are not affected; repairs remain fully permitted.
Request an in-home estimate for your exact home — we run a Manual J load calculation before recommending equipment.
Brands We Service
Furnace Installation Pricing in Denver and the Front Range
We provide furnace installation pricing across Denver and nearby Front Range communities including Aurora, Lakewood, Littleton, Centennial, Englewood, Westminster, Arvada, Thornton, Broomfield, Parker, and Highlands Ranch. Our dispatch model is built for metro coverage, with technicians routed by proximity so we can offer same-day service windows for most calls and rapid emergency response when safety or comfort is at risk.
Colorado homes face a unique HVAC mix: high-altitude combustion requirements, dramatic shoulder-season temperature swings, hail-season equipment wear, and dry-air airflow challenges that affect filter loading and system efficiency. Our team accounts for these Denver-specific factors during diagnosis and recommendations, so repairs and installations are matched to local operating conditions, not generic out-of-state assumptions.
If you are comparing contractors for furnace installation pricing, ask for licensing, insurance, certification, and written scope details before approving work. We provide all of that up front, including clear pricing, realistic timelines, and practical options based on equipment age, operating costs, and long-term reliability for Denver-area homes and businesses.
Why Denver Homeowners Choose Us
10+ years serving the Denver metro. Here is what sets us apart from other HVAC companies.
Furnace Installation Pricing FAQs
4.3 Stars — 84+ Google Reviews
Real reviews from Denver homeowners and businesses. We earn every one.
"I booked them for a full HVAC system checkup before winter. They inspected heating and cooling units thoroughly. A few small issues were fixed on the spot. Very reliable and skilled team."
"Our air conditioning stopped working in the middle of summer. They responded fast and provided excellent HVAC repair service. The technician was professional and very knowledgeable. Our home is cool and comfortable again."
"Great service and communication! Our furnace went out during a cold spell and they were able to get us back up and running within a day. The team was easy to work with and explained everything well. Alfredo, Merrill and Lisa went above and beyond to take care of us! Highly recommend!"
"My AC quit working on a 90 degree day. I called Denver's Best and they were able to fit me in for a same day appointment. I was so thankful to get my AC repaired the same day — especially with my 3 kids home for summer vacation. AJ was very knowledgeable and professional! I will be calling this company for any future AC or heating repairs."
"We give Denver's Best HVAC five stars. Very fair pricing on our water heater, furnace replacement, and AC install. Merrill, the install tech, was very knowledgeable. He identified duct work issues improving air flow throughout the house, and installed a REME-HALO air purification system. Our air is now very clean. You REALLY ARE Denver's Best HVAC."
"The service on my AC and furnace install was wonderful. The office staff was very responsive and professional. Zachary, my technician, was very thorough and knowledgeable. He kept me informed and also advised me on getting regular maintenance. I would highly recommend this company."
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