Heating and air conditioning repair in San Antonio

Ceiling cassette air conditioner in an office

Our guide to heating and air conditioning repair covers how the job works. Below: the San Antonio numbers a HVAC contractor looks at, with sources.

What the housing in San Antonio tells a provider

The median home in San Antonio dates from 1985, so about half the housing is that old or older. Of the 56 other cities in this network, 9 have newer housing by median year built. Age of the house is a clue to duct leaks and insulation, which change the right system size.
Source: Census ACS
Owner households fill about 52% of the occupied homes in San Antonio. That is 289,380 of 554,581 households. Of the 56 other cities in this network, 39 have a lower share of owner-occupied homes. If you rent, your lease likely puts heating and cooling repairs on the owner.
Source: Census ACS
The leading home heating fuel in San Antonio is electricity, at about 70% of occupied homes. Other fuels: utility gas 28%, bottled or tank gas under 1%, fuel oil or kerosene under 1%. The fuel decides which contractor skills matter: gas lines and venting, or heat pump and electrical work.
Source: Census ACS

San Antonio climate, by the numbers

NOAA's 30 year normals give San Antonio roughly 2,995 cooling degree days annually. Measured at the San Antonio Incarnate Word (TX) station. Of the 56 other cities in this network, 46 have a lower cooling load. Cooling demand at that level is why the outdoor unit's size and condition matter here.
Source: NOAA normals
San Antonio averages about 1,527 heating degree days a year, the NOAA measure of winter heating load. Measured at the San Antonio Incarnate Word (TX) station. Of the 56 other cities in this network, 11 have a lower heating load. Heating load like that decides whether a heat pump alone is enough or a furnace backup makes sense.
Source: NOAA normals
Expect around 22 days a year when San Antonio drops to 32 F or below, going by NOAA normals. Of the 52 other cities in this network, 12 have a lower number of freezing days.
Source: NOAA normals
A normal year brings about 112 days of 90 F or hotter near San Antonio (NOAA normals). The number of 90 F days here is higher than in 49 of the 54 other cities we cover.
Source: NOAA normals

When the weather tests homes in San Antonio

The heat wave risk for Bexar County, TX is rated relatively high in FEMA's National Risk Index. The same heat wave rating applies in 30 of the 55 other cities in this network. Heat waves are when an older air conditioner is most likely to fail, so a pre-season check pays off.
Source: FEMA risk index
On cold wave risk, FEMA's National Risk Index puts Bexar County, TX at relatively high. The same cold wave rating applies in 19 of the 53 other cities in this network. Frozen weather is when a furnace that limped through fall finally quits.
Source: FEMA risk index
In Texas, HVAC contractors are licensed by the Texas Department of Licensing and Regulation (TDLR); status can be checked on the agency's official lookup page.
Source: Texas Department of Licensing and Regulation (TDLR) (Texas) · Texas Department of Licensing and Regulation (TDLR) license information

Sources, checked October 2026

Local offices and rules in San Antonio

Casa Verde is CPS Energy's home weatherization program, listed alongside its residential rebates.
Source: www.cpsenergy.com. Checked October 2026.
CPS Energy's HVAC Rebates cover central air and heat pump systems on a per-ton basis and window units on a per-unit basis.
Source: resi-savenow.cpsenergy.com. Checked October 2026.
CPS Energy, a community-owned utility that calls itself the nation's largest public power, natural gas and electric company, provides electricity in San Antonio to roughly 996,000 electric customers.
Source: www.cpsenergy.com. Checked October 2026.
If you smell gas, leave the house and call your gas utility from outside. Keep a working carbon monoxide alarm near the bedrooms, and do not open a furnace cabinet that is running.

Common jobs

Wall-mounted mini-split cooling a bedroom