R-410A is being phased down under EPA regulations starting in 2025. It's not disappearing overnight — existing systems will continue to be serviced with R-410A for years. But new equipment is transitioning to R-32, which has a lower global warming potential. If your AC is under 10 years old and uses R-410A, you have nothing to worry about right now.
R-32 is the next-generation refrigerant replacing R-410A in new AC and heat pump systems. It's more efficient, requires less charge (about 30% less), and has lower environmental impact. At Colorado's altitude, R-32 performs well — the pressure characteristics are actually better suited to high-elevation operation than R-410A.
No need to rush. R-410A will remain available for servicing existing systems for many years. Replace your AC or heat pump when it makes financial sense based on age, condition, and repair costs — not because of a refrigerant transition.
If you're dealing with this issue in the Denver Metro area, the most important thing is getting a proper diagnosis from a NATE-certified technician who understands Colorado's altitude. At 5,000+ feet, HVAC systems behave differently than at sea level — refrigerant pressures, combustion efficiency, and airflow all change with elevation. A technician who doesn't account for altitude can misdiagnose the problem entirely. On Time Heat & Air has been serving the Front Range since 2013 with same-day service, upfront pricing, and no overtime fees for emergency calls. Call (720) 527-0668 for a diagnosis.
Colorado's climate creates unique HVAC challenges that homeowners in other states don't face. Our dry air, intense UV exposure, extreme temperature swings (it's not unusual to see 60°F days followed by 20°F nights), and hail storms all take a toll on heating and cooling equipment. Systems here work harder and fail in different ways than identical systems at sea level.
Brighton, where we're based, sits at 4,984 feet. Denver is at 5,280 feet. Aurora, Lakewood, Arvada, Westminster — they're all above 5,000 feet. That altitude affects everything from gas pressure in your furnace to refrigerant charge in your AC to the amount of air your blower motor needs to move. Every system we install or repair is calibrated specifically for Front Range conditions.
We're licensed in 8 Colorado counties with active, verifiable license numbers displayed on our website. Our technicians are NATE certified — the highest certification in the HVAC industry. And we've maintained a 5.0 Google rating across 70+ reviews because we show up on time, diagnose honestly, price upfront, and fix it right the first time.
NATE Certified · Licensed in 8 Counties · Same-Day Service