AC Installation & Replacement in Evergreen

Thin air cuts the capacity of both the coil and the condenser fan. The commonly used industry factor, reported by ACHR News, is roughly 0.92 at 5,000 feet; Evergreen is more than 2,000 feet above that, so expect a steeper loss. That does not mean doubling the size. Nights here are cool, and a house that is closed up during the day and flushed at night may need far less cooling than its square footage suggests. A Manual J load calculation is the only reliable way to size it, and it matters for heat pumps even more, since the same equipment has to carry winter loads.

Outlying properties often heat with propane. For electricity, most addresses are listed with Xcel Energy, while CORE Electric Cooperative's territory covers some of the mountain parts of the county; whichever name is on your bill decides which utility programs you can use. If you are paying for propane, a cold-climate heat pump that cools in summer and heats through most of the winter can cut fuel use considerably, with the existing boiler or furnace as backup.

Incentives favor that route. For 2026, Colorado's credit for an air-source heat pump is $1,000, of which the registered contractor must pass at least $333 to you, and Power Ahead Colorado adds $1,500 for qualifying cold-climate models when we apply before the install. Nothing comparable exists for cooling-only equipment, and the federal 25C credit ended with 2025. See our cold-weather heat pump guide for performance details.

Mountain lots bring their own placement problems. An outdoor unit needs to sit above expected snow depth, away from roof drip lines where snow and ice slide off, and on a solid level base on a slope. Heat pumps also need a clear drain path for defrost water. Because most Evergreen owners already maintain defensible space against wildfire, we set the pad in a cleared zone and keep it away from brush and wood decking. In Hiwan and other areas with covenants, check any rules on visible equipment before we finalize the location.

Unincorporated Evergreen falls under Jefferson County Building Safety, and cooling work there takes a mechanical permit plus an electrical one; both applications and the inspection visits are part of our job. Older cabins and homes on long rural service runs may have limited panel capacity, so we check the equipment's minimum circuit ampacity first. New split systems must meet at least 13.4 SEER2 for AC or 14.3 SEER2 for a heat pump, and use R-454B or R-32 refrigerant.