Emergency & After-Hours AC Repair in San Antonio
Free quotes from independent local HVAC contractors. AC quit on a hot night or a weekend? Request a quote any time and compare what local companies charge before anyone comes out.
We connect San Antonio-area homeowners with independent, TDLR-licensed local HVAC contractors for free, no-obligation quotes. The contractor you choose diagnoses, quotes, pulls the permit and does the work directly with you.
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When the AC fails in San Antonio heat
A broken air conditioner in San Antonio is more than an inconvenience. NOAA’s 1991–2020 normals for San Antonio International Airport show an average July high of 94.9 °F (96.0 °F in August) and about 122 days a year at 90 °F or hotter. In 2023 the city set a record, according to the National Weather Service in Austin/San Antonio: 75 days at 100 °F or more, beating the previous record of 59 set in 2009, including a record run of 23 straight 100-degree days during the hottest summer on record.
Those stretches are when systems that have been working hard for months give out, and when HVAC companies are busiest. You can request a free quote at any hour. Some San Antonio HVAC companies offer after-hours service, usually at a higher rate; others will book you for the next regular opening. The company you choose sets its own hours and fees.
Safety first: burning smells and carbon monoxide
- Electrical burning smell: shut the system off at the thermostat and at the breaker, then call an HVAC contractor. Don’t open electrical panels.
- Smoke or flames: leave the house and call 911.
- CO alarm sounds: leave the house and call 911. Carbon monoxide is odorless and colorless, so the alarm is your only warning. CPSC recommends CO alarms on every level, outside sleeping areas.
- Refrigerant: don’t open refrigerant lines or add refrigerant yourself. Federal rules (EPA Section 608) require certification to handle refrigerant.
What to check before you call
A few quick checks can save an after-hours service fee. If none of these fixes it, request quotes.
Thermostat
Is it set to Cool, below room temperature, with fresh batteries if it uses them?
Breaker
Check for a tripped AC or furnace/air handler breaker. If it trips again after one reset, leave it off and call.
Filter
A clogged filter can choke airflow. ENERGY STAR says a dirty filter can damage equipment and lead to early failure.
Condensate drain
A plugged drain can cause water damage, and many systems have a float switch that shuts the AC off when the pan fills.
For a longer list, see our AC not cooling checklist.
What after-hours AC repair costs
Published cost guides put after-hours and weekend labor at 2–3 times the normal hourly rate. On a hot weekend, the gap between companies can be large, so it pays to ask before the visit: what is the after-hours fee, is the diagnostic credited to the repair, and is the price for the part quoted in writing?
| Job | Typical range |
|---|---|
| After-hours / weekend | often 2–3× the normal rate, about $150–$300 per hour |
| Service call / diagnostic | $75–$200 (San Antonio guides: about $75–$150) |
| Typical AC repair | $250–$700 (average about $375) |
| Capacitor or contactor replacement | $100–$450 |
| Refrigerant recharge (after a leak is fixed) | $150–$900; leak repair plus recharge $200–$1,500 |
| Compressor replacement | $600–$4,000 |
Typical ranges from published cost guides (2024–2026) — estimates, not quotes. National figures unless marked San Antonio. See the full San Antonio AC & HVAC cost guide.
If the system is more than 10 years old and the repair is a major one, such as a compressor, ENERGY STAR suggests considering replacement. Compare options on our AC replacement page before paying for a large after-hours repair.
How to get an emergency AC quote
Tell us what’s happening (no cooling, a noise, a leak, the age of the system) and how urgent it is. We pass your request to independent local HVAC contractors, who contact you directly with their availability and pricing. There is no cost or obligation. An HVAC contractor will diagnose the problem on site and give you a written price before doing any work.
Before you hire
- Get the company’s TDLR license number (it looks like TACLA… or TACLB…, ending in E or C for home AC) and look it up at the TDLR license search. Texas rules require that number on the company’s ads, both sides of its vehicles, proposals and invoices (16 TAC §75.71).
- The technician should be TDLR-registered or certified, and EPA Section 608 certified to handle refrigerant.
- A replacement needs a city mechanical permit in San Antonio, and suburbs should be checked. The contractor pulls it; in San Antonio, CPS Energy rebates require the permit number.
- Ask for a load calculation (Manual J) before replacing equipment.
- Get a written, itemized quote with model and serial numbers. Ask whether the diagnostic fee is credited to the repair and what the after-hours rate is.
- Get 2–3 quotes.
- If a CO alarm sounds, leave the house and call 911.
More detail: how to compare HVAC companies in San Antonio. This is general information, not legal advice.
Emergency AC quotes across the area
Requests come from across the city and nearby suburbs, including:
Related: AC maintenance and tune-ups can catch weak parts before the hottest weeks, and furnace and heating repair covers no-heat calls in winter. Before you hire, read how to check a Texas HVAC license.
Emergency AC repair FAQ
How much does after-hours AC repair cost in San Antonio?
Published cost guides say after-hours, weekend and holiday work often runs 2–3 times the normal rate, or about $150–$300 per hour, on top of a service call that typically costs $75–$200 (about $75–$150 in San Antonio guides). These are estimates, not quotes. Ask each company for its after-hours rate before the visit.
Can I get an emergency AC repair quote at night or on a weekend?
Yes. You can request a quote any time through our form. Some San Antonio HVAC companies offer after-hours service, usually at a higher rate, while others book the next regular opening. The contractor you choose sets its own hours, fees and timing, so ask about both before you agree to a visit.
Should I turn my AC off if it smells like burning?
Yes. An electrical burning smell is a reason to shut the system off at the thermostat and at the breaker, then call an HVAC contractor. Do not open the outdoor unit or the electrical panel yourself. If you see smoke or flames, leave the house and call 911.
Is it worth paying after-hours rates or waiting until morning?
It depends on the heat and who is in the home. On a 100-degree day with someone in the house who is vulnerable to heat, paying the after-hours rate can make sense. If the house is holding a safe temperature, waiting for regular hours usually costs less. Either way, get the rate in writing first.
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