AC repair in McKinney

Oncor lists McKinney among the cities it serves. Where no co-op or city-owned utility serves an address, ERCOT customers choose a retail electric provider and compare plans at PowerToChoose.org. CoServ Electric, a member-owned co-op, also serves parts of Collin County, and co-op areas are outside retail choice unless the co-op opts in. Your bill names your utility; read it before anyone quotes savings.

ERCOT set an all-time peak demand record of 91,089 megawatts on July 22, 2026, above the 85,508 MW mark from August 10, 2023 (records stay unofficial until final settlement). Every hour a struggling unit runs on a July afternoon is billed at the rate your plan sets.

Oncor efficiency programs for McKinney homes

Oncor runs its energy efficiency programs through independent service providers listed on its Take A Load Off Texas site when programs are open, and Oncor is not a party to your contract with the provider. Any incentive a contractor mentions should come with written terms from the provider.

HomeGuide's national figures are the nearest yardstick for McKinney quotes:

• Typical AC repair: $150 to $650, with technicians at $75 to $150 an hour.
• Large out-of-warranty repairs: $650 to $2,500 or more.
• Standard-efficiency central AC replacement: $5,000 to $8,300.

A compressor or coil quote near the top of the repair band is the moment to get a replacement price on the same visit. The full Texas cost and licensing guide is on our AC and HVAC page.

McKinney AC equipment minimums

Texas sits in the federal Southeast efficiency region. A split-system central air conditioner installed here on or after January 1, 2023 must reach 14.3 SEER2 below 45,000 Btu/h, or 13.8 SEER2 at 45,000 Btu/h and up. Split-system heat pumps made since that date need 14.3 SEER2 and 7.5 HSPF2. 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 or imported before that date have no installation deadline. The quote should list the model number and refrigerant.

Anyone who installs, repairs or maintains heating or air conditioning for hire in Texas needs a TDLR license, and each HVAC company must employ a licensed contractor at every permanent location. The license is statewide, so a McKinney job needs no separate city license, and since September 1, 2021 cities may not charge TDLR-licensed HVAC contractors a registration fee (permit fees still apply).

1. Search TDLR's License Data Search for the company and the technician. Air Conditioning Contractors and A/C Technicians are both listed.
2. Read the class. Class B covers cooling systems of 25 tons or less and heating up to 1.5 million BTU per hour; Class A covers any size.
3. Ask for the insurance certificate. Class B contractors must carry at least $100,000 per occurrence of general liability, and Class A at least $300,000.
4. Ask who is coming. Helpers must be registered TDLR technicians working under the contractor, and they may not advertise HVAC services themselves.

State rules bar a licensee from misrepresenting the need for a repair or making false statements to win a contract. If a diagnosis sounds wrong, get a second visit before you pay for a new system.

Licensees must give cities a list of agents allowed to pull permits under their license, so ask whether the contractor's agent will file. Get the permit number in writing and check it with the City of McKinney before the old unit is hauled off.

Book replacement work outside the July peak when you can. A new condenser may also need a dedicated circuit; if so, compare our McKinney electricians. A failed condensate line or a water heater in the same closet is a job for plumbers in McKinney. If you live near the city line, the Allen AC repair list covers the next town south. Local power, water and permit notes are on the McKinney hub.