Clear repair vs. replace advice
If a repair makes sense, we’ll say so. If replacement is the better long-term move, we’ll show you why without pressure.
Professional commercial hvac for local businesses. NATE Certified technicians licensed in City & County of Denver. Fast response — financing available. Whether you're near Coors Field in LoDo, the shops on South Broadway, or the tree-lined streets of Washington Park, our Denver-licensed technicians serve every neighborhood in the Mile High City.
Denver businesses trust On Time Heat & Air for professional commercial hvac. We're licensed in City & County of Denver (License #LIC00251540) and provide fast, reliable service throughout the Denver area with NATE Certified technicians.
Commercial heating/cooling for offices, retail, restaurants, small businesses. We work on all major brands including Bryant, Lennox, Goodman, Carrier, Trane, and Rheem and provide upfront pricing before any work begins. Our team has served the Denver metro community since 2013.
We hold active licenses in 8 Colorado jurisdictions — more coverage than most HVAC companies. For Denver residents, this means fully authorized, insured, code-compliant work every time. We offer same-day service, 24/7 emergency response, and financing from $79/month.
"I have had the pleasure of having On Time Heat and Air at my house to service my furnace, and both times have been amazing. Timely and professional. On Time will be my go-to!"
"We had bad experiences with other HVAC companies, and On Time was sent to fix the mess. Our technicians had a great attitude, diagnosed the problem, and quickly fixed everything."
"Our technician was on time, after hours, and arrived already knowing what the likely cause was for our AC failure."
Commercial HVAC systems in Denver serve offices, retail spaces, restaurants, warehouses, and mixed-use buildings. At 5,280 feet, commercial rooftop units and split systems need the same altitude adjustments as residential equipment — but the stakes are higher. A failed AC in a Denver restaurant on a 95°F day means lost revenue. We provide 24/7 commercial emergency service, preventive maintenance contracts, and full system installation with all Denver County commercial permits handled.
At exactly one mile high (5,280 ft), Denver's thin air means gas furnaces need altitude-adjusted orifices. Denver also sees some of the most extreme temperature swings in the country — 50°F changes in a single day are common in spring and fall.
Our technicians serve all Denver neighborhoods including Capitol Hill, Park Hill, Wash Park, Five Points, RiNo, Highland, Baker, Cherry Creek, Congress Park, Montbello. Whether you're in a newer development or an established neighborhood, we have the expertise and licensing to handle your HVAC needs.
Denver's historic homes in neighborhoods like Park Hill and Capitol Hill often have original ductwork from the 1920s-1950s. Duct sealing alone can reduce energy bills by 20-30%.
Fast diagnosis and repair for all AC brands. Same-day emergency service available 24/7.
Professional central air installation and replacement. Free estimates. Financing available.
Expert furnace repair for all makes and models. 24/7 emergency heating repair.
New furnace installation and replacement. Energy-efficient systems with financing.
Heat pump installation, repair and maintenance. Colorado tax credits may apply.
Annual tune-ups to extend system life and lower energy bills. Comfort Club $179/yr.
We built these local pages to help you find the right service fast — but what keeps customers calling us is simple: licensed work, clear communication, and options that make sense for the home you actually have.
If a repair makes sense, we’ll say so. If replacement is the better long-term move, we’ll show you why without pressure.
From older systems in central neighborhoods to builder-grade equipment in newer subdivisions, we work on the setups common across Denver Metro.
When heating or cooling goes down, you need someone who answers, shows up, and communicates clearly from diagnosis to repair.
If you’re comparing service options across nearby cities, use the links below to find the page closest to your home and service needs.
HVAC Repair Denver
HVAC Repair Denver
HVAC Repair Aurora
HVAC Repair Lakewood
Furnace Repair Denver
Furnace Repair Thornton
Furnace Repair Commerce City
Furnace Installation Westminster
AC Repair Denver
AC Repair Northglenn
AC Repair Lakewood
AC Installation Centennial
See our full Commercial HVAC services and HVAC services in Denver.