AC repair in Waco

Start with the state. Anyone who installs, repairs or maintains air conditioning or heating in Texas must hold a TDLR license, and an HVAC company must employ a licensed contractor at each permanent location. Search the company or the technician on TDLR's License Data Search, which lists Air Conditioning Contractors and A/C Technicians separately. The person who comes to your house may be a registered technician working under a contractor's supervision; technicians can't advertise HVAC services on their own.

Read the license number. It follows a pattern such as TACL/A/000000/C, which shows the class and the endorsement. 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 A contractors must carry at least $300,000 per occurrence in liability insurance and Class B at least $100,000.

The Waco permit layer

A TDLR license is valid statewide, so no separate city license is required. Waco still asks contractors to register the company, prove state licensing and file a certificate of insurance before it issues mechanical permits through EnerGov. Since September 1, 2021, Texas cities may not charge TDLR-licensed HVAC contractors a registration fee, though they still collect permit fees. Licensees must also give cities a list of agents allowed to pull permits under their license, so ask who will apply and get the permit number.

HomeGuide's national figures (August 2025) put AC repair at $150 to $650 on average, with technicians at $75 to $150 an hour and a tune-up at $70 to $200. Large out-of-warranty repairs run $650 to $2,500 or more. Replacing a standard-efficiency central unit runs $5,000 to $8,300 nationally (July 2025), and adding new ductwork pushes a full install to $6,000 to $12,000.

Those are national ranges, so use them to spot an outlier quote, not to set a Waco price. The Texas HVAC guide covers the full cost breakdown.

Two federal rules shape the equipment you'll be quoted. Texas is in the federal Southeast efficiency region, so a split-system central air conditioner installed on or after January 1, 2023 must reach at least 14.3 SEER2 below 45,000 Btu/h, or 13.8 SEER2 at 45,000 Btu/h and up. And under EPA rules, new residential systems are limited to refrigerants with a global warming potential of 700 or less from January 1, 2025, although systems whose components were all made or imported before that date have no installation deadline.

Questions to ask a Waco HVAC company

• Is the company registered with the City of Waco, and who will pull the mechanical permit?
• What is the SEER2 rating and refrigerant of the system you're quoting?
• Is the diagnosis in writing? Texas rules bar licensees from misrepresenting the need for a repair or making false statements to win a job.
• Does the company named on your power bill run an efficiency program? Call it before you sign.

Owners who do their own AC work in a home they solely own and live in are outside the state licensing law, but check the city's permit rules with Waco Inspection Services before any work starts. If the job needs new wiring, ask whether an electrician must pull a separate permit. The Waco hub covers permits and utilities, and AC companies in Killeen give you a second set of quotes.