AC & heating repair in Castle Hills, TX: we connect you with top-rated local HVAC pros, checked by our team — their proposals come straight to your Homeshi account. Free for property owners.
In Castle Hills, July highs average about 95°F and January lows about 41°F — air conditioners run hard for months, so a tune-up before summer pays off.
In Bexar County, July highs average about 95°F and January lows about 41°F, with roughly 31 inches of rain a year. That much heat keeps air conditioners running hard for months, so a yearly tune-up pays off.
Over the last 10 years the National Weather Service recorded hailstorms, flash floods and damaging thunderstorm winds in Bexar County, with hail up to 5.5 inches across. After a storm, a quick roof and gutter check catches damage before it turns into a leak.
The typical home in Bexar County was built around 1992, about 34 years ago, and 38% were built before 1980.
Bexar County has had 25 federal disaster declarations in the last 25 years, most often for hurricanes; the latest was Severe Storms, Straight-Line Winds, Tornadoes, And Flooding (2026).
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Book the AC tune-up in spring and the heating check in fall, before the first real heat or cold — repair slots fill fast in a heat wave.
Central AC units usually last 12–15 years and furnaces 15–20; past that, a repair often costs more than it saves.
If the system is over 12–15 years old or needs a major part (compressor, heat exchanger), ask for both prices — the pro sends them on Homeshi so you can compare.
These are Bexar County figures — more about homes in San Antonio.
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