Find a 24/7 AC Repair Technician in San Antonio, TX
When summer humidity hits and your AC quits, every hour matters. Connect with an independent local HVAC pro now — 24/7 dispatch nationwide.
By Gyanesh Gulshan — Founder, Cool Call Pro
Common San Antonio HVAC emergencies
Call Now — (844) 582-179524/7 dispatch · San Antonio-area network
AC out, blowing warm, or iced over
Outdoor unit silent · indoor blower running but warm air · ice on the refrigerant lines · short-cycling on/off. The most common cause is electrical (capacitor, contactor) or refrigerant — both require a technician.
Furnace not igniting or blowing cold
Furnace won't ignite · blowing cold air · short-cycling · burning smell on first startup. If you smell gas, leave the building immediately and call 911 first.
Water dripping from vent or air handler
Water from a ceiling vent · pooling near the indoor air handler · drain pan overflowing. The #1 cause in humid San Antonio summers is a clogged condensate drain line — clearing it requires working around the evaporator coil and is a technician task.
About the Cool Call Pro San Antonio network
24/7 San Antonio Dispatch
Independent HVAC providers offering round-the-clock emergency response across the San Antonio metro — including weekends and holidays. Overnight surcharges are set by the individual provider.
San Antonio Metro Coverage
Independent providers across major San Antonio neighborhoods, routed to your area by current availability. The full ZIP-level coverage detail is in the Services & service area section below.
TX TDLR Air Conditioning &
All HVAC contractors in Texas should hold a current TX TDLR Air Conditioning & Refrigeration Contractor License. Verify any contractor at the Texas Dept. of Licensing and Regulation (TDLR) — Class A/B ACR License before you hire.
San Antonio's hot-humid climate & your HVAC
This is a strongly cooling-dominated Zone 2A (Hot-Humid) climate — AC runs 8–10 months of the year and humidity management is a year-round design consideration. Federal SEER2 14.3 (Southeast Region) minimum applies to new equipment.
Avg summer high
IECC zone (hot-humid)
Avg winter low
Federal SEER2 minimum
Days/yr above 90°F
Days/yr below 32°F
In San Antonio, the median home was built in 1984 with a current median value of $219,700. Around 52% of homes are owner-occupied. About 29% of households heat with natural gas vs. 70% electric. The Texas grid averages $0.15/kWh. Sources: U.S. Census ACS · U.S. EIA state rates.
Read our guide on preparing your AC for summer.
HVAC in San Antonio, TX: local data & sources
Every numerical claim below references a federal, state, or municipal primary source — NOAA climate normals, U.S. Census ACS, the Texas licensing authority, and your local utility's published rebate program.
NOAA NCEI 1991–2020 Normals
San Antonio International Airport (KSAT) is the NOAA reference station for the city. Per the NOAA NCEI U.S. Climate Normals 1991–2020 (station USW00012921), San Antonio records an annual mean temperature of 69.6°F, approximately 3,147.8 annual cooling degree days against 1,438.4 heating degree days, 32.38 inches of annual precipitation, and essentially no snowfall. The 2.2:1 CDD-to-HDD ratio defines San Antonio as a cooling-dominated Zone 2A hot-humid climate where the AC system carries the system load 7–9 months of the year and high dew points make latent (humidity) cooling as important as raw sensible capacity.
U.S. Census ACS 2022 5-Year
The U.S. Census Bureau ACS 2023 5-year estimates (Tables B25040 and B25035 for San Antonio city, Texas) report 547,883 occupied housing units with a median year built of 1984. Heating-fuel distribution: 69.5% electricity (380,864 units) overwhelmingly dominates, with only 28.6% utility natural gas (156,497 units) and a notable 1,676 solar-heated homes. San Antonio’s electric-heat share is the highest of any major Texas city researched — higher than Houston’s 64.5% or Dallas’s 65.2% — reflecting both CPS Energy’s competitive municipal electricity rates and the city’s post-1970s heat-pump-centric housing growth pattern.
Texas Dept. of Licensing & Regulation
Every HVAC contractor working in San Antonio must hold a current Air Conditioning and Refrigeration Contractor license from the Texas Department of Licensing and Regulation (TDLR), governed by Texas Occupations Code Chapter 1302 and 16 Texas Administrative Code Chapter 75. The Class A Environmental Air Conditioning license entitles the holder “to engage in air conditioning contracting…of any size or capacity.” The Class B Environmental Air Conditioning license is limited “to a system, a product, or equipment of not more than: (1) 25 tons cooling capacity; or (2) 1.5 million British thermal units per hour output heating capacity.” For typical San Antonio residential work, a Class B contractor is fully qualified. Permit fees for residential mechanical work are set by the City of San Antonio Development Services Department; contact DSD directly for the current fee schedule.
CPS Energy
San Antonio is served by CPS Energy, a municipal utility owned by the City of San Antonio and uniquely positioned among Texas utilities — because Texas retail electricity is deregulated under ERCOT elsewhere, but CPS operates as a vertically integrated municipal utility with rates set by City Council. Per the CPS Energy Save for Tomorrow Energy Plan (STEP) HVAC Rebates Specifications, rebates are structured per cooling ton, scaled by efficiency tier and replacement timing. Early Replacement rebates: $115/ton at 13.8–15.1 SEER2, scaling up to $310/ton at 20.0+ SEER2. Replace-on-Burnout rebates: $90/ton at 13.8–15.1 SEER2, scaling to $275/ton at 20.0+ SEER2. Minimum efficiency for rebate eligibility is 14.3 SEER2 / 11.7 EER2 for units under 45,000 BTUh; heat pumps require 7.5 HSPF2. For a typical 3-ton residential system at the minimum tier, that’s $270–$345 in rebates; at the top tier, $825–$930. Separately: WiFi Thermostat Rewards — $85 enrollment credit + $30/year bill credit, and contractor-installed attic insulation $0.35/sq ft ($0.25/sq ft self-installed). Per the CPS Energy Home Energy Rebates Specifications, insulation alone often pays back fastest in Zone 2A climates.
The federal Section 25C Energy Efficient Home Improvement Credit was terminated for installations placed in service after Dec 31, 2025 by the One Big Beautiful Bill Act (Public Law 119-21). State HEAR rebates and utility programs remain in effect. See our HVAC financing options for what's still available.
Services & service area
What our network covers
- Emergency AC Repair in San Antonio
- Humidity Control & Dehumidification
- Central AC Installation & Replacement
- HVAC System Maintenance & Tune-Ups
- Ductwork Inspection, Cleaning & Mold Prevention
Where we connect homeowners
- Alamo Heights — ZIP 78209
- Terrell Hills — ZIP 78212
- Olmos Park — ZIP 78201
- Stone Oak — ZIP 78258
- King William — ZIP 78216
Common HVAC repair costs in San Antonio, TX
Typical 2026 ranges. Actual price varies by provider and complexity.
Diagnostic / service call
$65–$150
Often waived if you book the repair
Common AC repair
$90–$450
Capacitor, contactor, thermostat, drain line
Refrigerant recharge
$150–$600
R-410A per recharge; leak fix extra
After-hours surcharge
$100–$300
Added to repair cost on emergency calls
See full repair, install, and replacement ranges in our 2026 HVAC Cost Guide →
Ready to talk to a San Antonio HVAC pro?
Independent technicians · 24/7 dispatch · TX TDLR Air Conditioning &-verified network
Call Now — (844) 582-1795Disclosure: We are a referral service and may receive compensation for qualified calls. Calls may be routed to an independent provider network and may be recorded. Pricing and availability vary by provider and location.
Frequently Asked Questions — San Antonio, TX
Yes, ensure your contractor files a mechanical permit with the City of San Antonio Development Services Department. Pulling the correct permits protects you as a homeowner and ensures work is inspected to code.
Homeowners may qualify for savings through CPS Energy (municipal). Check with CPS Energy STEP Home Energy Rebate Program for current offers. The federal Section 25C credit was terminated for installations after Dec 31, 2025 (OBBBA, P.L. 119-21); check current state and utility programs for 2026.
Our network covers San Antonio and surrounding areas including 78209, 78212, 78201, 78258, 78216. Call (844) 582-1795 to verify service availability for your specific ZIP code.
A standard AC replacement in San Antonio typically costs $4,200–$10,000, and furnace installations run $2,800–$5,500. Costs vary based on system size, efficiency rating, and installation complexity. In Texas, new AC units must meet a minimum SEER2 14.3 (Southeast Region) rating.
In Texas, HVAC contractors should hold a TX TDLR Air Conditioning & Refrigeration Contractor License. Always verify your contractor's credentials before authorizing work. For San Antonio residents, permits are filed through the City of San Antonio Development Services Department.