Fast diagnosis and repair for all AC brands. Same-day emergency service available 24/7. NATE Certified technicians licensed in 8 Colorado counties.
When your air conditioner breaks down in the middle of a Colorado heat wave, you need fast, reliable AC repair. On Time Heat & Air provides same-day AC repair service across the Denver metro area. Our NATE Certified technicians diagnose the problem quickly and carry the most common replacement parts on our service vehicles — so most repairs are completed in a single visit. We work on all brands including Carrier, Lennox, Trane, Rheem, Goodman, and more. Whether your AC is blowing warm air, making strange noises, leaking water, or not turning on at all, we have the expertise to fix it right the first time.
Our NATE Certified technicians have the training and real-world experience to handle any ac repair job. We hold active licenses in 8 Colorado counties — Adams, Arapahoe, Aurora, Broomfield, Commerce City, Denver, Douglas, and Jefferson — so we're authorized to work anywhere in the Denver metro. We provide upfront pricing, honest recommendations, and stand behind every job.
Select your city for location-specific ac repair information:
Professional central air installation and replacement. Free estimates on all new systems.
Expert furnace repair for all makes and models. 24/7 emergency heating repair available.
New furnace installation and replacement. Energy-efficient systems with financing options.
Heat pump installation, repair and maintenance. Year-round comfort, energy-efficient.
Annual AC tune-ups and maintenance to extend system life and keep energy bills low.
Free tips and guides from our NATE Certified team:
When your AC breaks in a Denver summer, you need a company that shows up fast, diagnoses the real problem, and doesn't try to sell you a new system when a $200 repair will fix it. That's what we do.
Our NATE-certified technicians carry common AC parts on every truck — capacitors, contactors, fan motors, and refrigerant. Most repairs are completed on the first visit without a return trip. We work on all brands including Carrier, Lennox, Trane, Goodman, and Rheem.
Colorado's altitude changes how AC systems behave. Refrigerant pressures read differently at 5,280 feet than at sea level. A technician who doesn't account for altitude can misdiagnose the problem entirely — charging for a refrigerant top-off when the real issue is a failing capacitor or a dirty condenser coil. We've been diagnosing AC systems on the Front Range since 2013. We know the difference.
We waive the diagnostic fee when you proceed with the repair. Upfront pricing on every job — you approve the cost before we touch anything. Licensed in 8 Colorado counties with a 5.0 Google rating across 70+ reviews.
Common questions from Denver Metro homeowners.
Most AC repairs in the Denver Metro cost between $150 and $700. Common fixes like capacitor replacements run $150–$350, while compressor issues can reach $800–$2,500. We waive the diagnostic fee when you proceed with the repair.
The most common causes are a dirty air filter, low refrigerant, a failed capacitor, or a frozen evaporator coil. At altitude, refrigerant pressure behaves differently — a system that tests fine at sea level can underperform here. Our NATE-certified techs diagnose the root cause, not just the symptom.
We offer same-day AC repair across the Denver Metro. Most calls are answered within minutes, and we can typically have a technician at your door within a few hours. Call (720) 527-0668 for availability.
If your AC is under 10 years old and the repair costs less than half a new unit, repair usually makes sense. If it's over 12–15 years, uses R-22 refrigerant, or needs a compressor, replacement is usually the better investment. We give you an honest recommendation either way.
Yes. We repair Carrier, Bryant, Lennox, Trane, Goodman, Rheem, York, Amana, and all other major brands. Our trucks carry common parts so most repairs are completed on the first visit.
Serving Henderson, CO too — AC Repair in Henderson →