Aerial view of a residential air conditioning condenser unit mounted on a concrete pad next to a house with vinyl siding and a sliding glass door.

AC Maintenance in Castle Rock, CO

Air conditioners here run from July through July, so June is the time for a tune-up. Tell us about your system, and a licensed contractor who covers Douglas County will get in touch.

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It takes about a minute.

Step 1 of 3: Equipment

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Overhead view of an air conditioning condenser unit on a concrete pad next to a house with asphalt shingle roofing and vinyl siding.

Castle Rock summers are short, but hard on your AC

Your air conditioner only has to work one month a year here, but it works hard when it does. Afternoons in July average 81°F, and the unit runs to keep up, cycling on and off through the heat of the day. Every one of those cycles puts a load on the compressor and the fan motor.

Douglas County also gets hail and wind that a furnace never has to deal with. Ten years of records show 158 hail events and 97 damaging wind events, with hailstones up to 2.5 inches. That kind of weather can bend the fins on your outdoor coil or knock the unit out of alignment without you knowing it happened. A tune-up checks the coil, the fins, and the refrigerant charge, so a summer storm your AC already sat through does not turn into a breakdown on the next hot afternoon.

1 months: July through July, your air conditioner is on duty
81°F: the average summer afternoon it cools against
158 hail events: in ten years, and hail bends the fins on outdoor coils
97 wind events: in ten years, and wind drives debris into outdoor units

Isometric grayscale illustration of a cutaway house showing interior rooms, ceiling ductwork connected to an indoor air handler, and an outdoor condenser unit linked by lines along the exterior wall.

Your air conditioner works hardest from July through July.

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NOAA nClimDiv, 1991–2020 normals

Overhead view of a gray outdoor AC condenser unit on a concrete pad beside a mulched garden bed and a house with vinyl siding.

Book your AC tune-up in June, before homes here start needing cooling in July.

A tune-up checks the refrigerant charge, cleans the coils, tests the capacitor and tightens the electrical connections.

What does AC maintenance include?: A contractor checks the refrigerant charge, tests the capacitor, cleans the condenser coil, and looks over the electrical connections for wear. They also check airflow across the indoor coil and make sure the condensate drain isn't clogged. Castle Rock sees a fair amount of hail, so it's worth having the technician check the condenser fins too, since bent fins cut down on airflow.
How often does an air conditioner need maintenance?: Once a year is enough for most systems, done in spring before the heat sets in. Castle Rock only needs cooling through the summer, so getting the system looked at before those hot afternoons hit means any issue gets caught before you're relying on it every day.
Is AC maintenance worth it?: Yes, because most of the failures that leave you without cooling on a hot day trace back to something a technician would have caught, like a weak capacitor or a dirty coil. Castle Rock also sees a fair share of hail and wind each year, and a unit that's been maintained is easier to check for storm damage since a technician already knows what it looked like before. Skipping maintenance doesn't break the system outright, but small problems tend to turn into bigger repairs the longer they run unnoticed.

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