AC repair in Houston

HomeGuide's national figures put AC repair at $150 to $650 on average, with technicians at $75 to $150 an hour. Large out-of-warranty repairs, such as a compressor, run $650 to $2,500 or more, and replacing a standard-efficiency central system costs $5,000 to $8,300. HomeGuide puts a tune-up at $70 to $200. These are national ranges, so get written quotes from Houston contractors to compare.

Demand is the local variable. ERCOT set an all-time peak demand record of 91,089 megawatts on July 22, 2026, topping the 85,508 MW record from August 10, 2023 (records stay unofficial until final settlement). With peaks landing in high summer, a spring tune-up gets your system checked before the heaviest load.

Get the diagnosis in writing before you approve a part, and ask whether the trip fee comes off the repair. The full Texas price guide is on the Texas AC and HVAC guide.

Every Texas company that installs, repairs or maintains air conditioning or heating must employ a TDLR-licensed contractor at each permanent location. The license is valid statewide, so no separate Houston license applies, and since September 1, 2021 cities can't charge licensed contractors registration fees, though building permit fees still apply.

Reading a Texas AC license number

The number shows the class and endorsement, for example TACL/A/000000/C. Class A covers equipment of any size; Class B is limited to cooling systems of 25 tons or less and heating of 1.5 million BTU per hour or less. Class B contractors carry at least $100,000 per occurrence of liability cover and Class A at least $300,000.

The person at your door may be a registered technician working under the contractor's supervision. Technicians can't advertise HVAC services on their own, so a flyer from an individual tech with no contractor named doesn't fit the rules. Search both on TDLR's License Data Search.

Texas rules bar licensees from misrepresenting the need for service. If a technician says the whole system must go, ask for the failed reading or part in writing and get a second quote.

Texas is in the federal Southeast efficiency region, so split-system central air conditioners installed since January 1, 2023 must be at least 14.3 SEER2 under 45,000 Btu/h, or 13.8 SEER2 at 45,000 Btu/h and up. From January 1, 2025, new residential systems are limited to refrigerants with a global warming potential of 700 or less, though systems whose parts were all made before that date can still be installed.

Ask which refrigerant the quoted system uses and whether the price includes a matched indoor coil. Then ask whether the change-out needs a Houston permit and who will pull it. Contractors give the city a list of agents authorized to pull permits under their license, and Houston permits go through the Houston Permitting Center.

Austin Energy and San Antonio's CPS Energy pay AC rebates to their own customers, and those programs don't reach Houston. Ask the contractor whether any rebate applies to your system, and get it in writing before you count it in the price.

CenterPoint Energy maintains the lines and responds to outages, but homes in Houston's deregulated market buy power from a retail provider they choose on PowerToChoose. A more efficient system cuts kilowatt-hours; the rate you pay for each one comes from your plan.

A new condenser can need a larger circuit, which is work for one of the electricians in Houston. Condensate leaks into a ceiling may also need a Houston plumber. West of the city, AC repair in Sugar Land follows the same TDLR rules. For permits, floodplain and utilities, see the Houston local guide.