HVAC Repair Houston: $150 to $900 + License Checks (2026)

Houston rows are published local ranges; rows marked national are national figures.

Do this now: no AC in a Houston heat wave

Get people out of the heat first: once it is above 90 F inside, the CDC says a fan can raise body temperature.

1. Smell gas near the furnace or water heater? Leave the house and call CenterPoint at 713-659-2111 or 911 from outside.
2. Heat stroke signs? A body temperature above 103 F, hot red dry skin, a fast strong pulse or confusion: call 911 first (Ready.gov).
3. Go somewhere cool. When the city's Heat Emergency Plan is active, the Houston Health Department says multi-service centers, libraries and recreation centers take people without AC. Call 3-1-1 (713-837-0311) to find one or ask for a METRO ride.
4. Check the thermostat, the filter and the outdoor unit's breaker. If the breaker trips again, stop resetting it.
5. Power out instead? Report it to CenterPoint at 713-207-2222.

Is it an emergency? Signs to call a Houston AC company today

No AC is an emergency in Houston when it tops 90 F inside and someone at higher risk is home; the CDC names people 65 and older, infants and young children, and people with asthma or heart disease.

• Heat stroke signs. Call 911 before the AC company.
• Heat out in a hard freeze. Houston averages about 10 nights a year at or below freezing, and Texas DSHS confirmed 43 Winter Storm Uri deaths in Harris County in February 2021.
• Gas smell or a carbon monoxide alarm. Get out first; CPSC says call 911 from outside.
• Water pouring from the air handler. ENERGY STAR says a plugged condensate drain can cause water damage.
• A breaker that trips again after one reset.

Can it wait? An AC that runs but falls behind on a mild day can usually wait for regular hours. HomeAdvisor puts after-hours AC labor at $160 to $250 an hour nationally, against $75 to $150 in regular hours.

Houston HVAC permits: city registration and the 2% fee

Houston requires a permit to alter an existing HVAC system, and only a registered contractor can get one. The Houston Permitting Center says: "Licensed contractors seeking a permit to alter an existing HVAC system must register their license with the City of Houston." The fee is 2% of the total job cost plus $47, with a $33.56 admin fee, and an inspection is required. The city will not schedule that inspection unless the contractor's registration is in good standing.

TDLR issues the state license (Class A for any size unit, Class B for cooling systems of 25 tons and under) and says contractors inside city limits must still follow city permit rules. We found no city page on homeowner HVAC permits, so have the company pull it.

Local rules, contacts and climate for Houston, from official city, state, utility and NOAA pages unless the source says otherwise.

Why Houston air conditioners run so long

Houston's AC problem is season length, not peak heat. NOAA's 1991 to 2020 normals for Bush Intercontinental show a July high of 94.5 F but only 7 days a year at 100 F. Yet the airport logs 3,288 cooling degree days, more than San Antonio's 3,148, though San Antonio averages 17.7 triple-digit days.

Long seasons mean long run times. ENERGY STAR notes that a plugged condensate drain can cause water damage and affect humidity, and DOE says replacing a dirty filter can cut AC energy use 5% to 15%. If the air is moving but not cold, start with AC not cooling: what to check first before you call.

Houston also freezes, about 10 nights a year. In Winter Storm Uri, February 2021, Texas DSHS confirmed 43 storm deaths in Harris County. A furnace or heat pump that will not run in a hard freeze is an emergency HVAC repair call.

Hurricane Beryl cut power to 2.26 million CenterPoint customers in July 2024, ABC13 reported. If power returns and the AC does not, check the breaker; electrical repair in Houston covers the wiring side.

Repair or replace an AC in Houston

HomeAdvisor's rule: consider replacing when the repair cost times the unit's age passes $5,000, or when the repair is half the price of a new unit. HomeAdvisor's 2026 guide puts a new AC at $5,978 on average. Texas is in DOE's Southeast region, where a new split AC under 45,000 Btu/h must be rated at least 14.3 SEER2 when installed. No federal tax credit applies to equipment installed in 2026; the IRS says 25C ends for property placed in service after December 31, 2025. AC replacement cost breaks down prices by size.

Questions to ask a Houston HVAC company

1. What is your TDLR license number, and is it registered with the City of Houston?
2. Will you pull the HVAC permit, and is the city's 2% fee in the price?
3. What is the diagnostic fee, and does it go toward the repair?
4. Can I see proof of insurance and a written price before work starts?

TDLR takes complaints about licensed trades online within two years of the work, and the Texas Attorney General takes consumer complaints. Calls to the heating and AC line go to an independent company that serves your area and takes this kind of job; how calls work explains the rest.

More Houston repair guides

For drains, leaks and water heaters see plumber in Houston. Rooftop solar owners can use the Houston solar service guide. Nearby heat and humidity comparisons: AC repair in San Antonio and AC repair in Tampa. All trades are priced on home repair costs, and every AC topic starts at HVAC repair.

AC repair in Houston: what common repairs cost

AC repair in Houston runs $150 to $900 for most jobs, ConsumerAffairs reported in May 2026, with a diagnostic visit of $85 to $150. A capacitor costs $150 to $400 in Houston and a refrigerant leak repair with recharge $300 to $1,000, the same report says. Nationally, HomeAdvisor puts the average AC repair at $417 (most $172 to $664), and HomeGuide prices a contactor at $200 to $450 and a compressor at $600 to $2,500.

• Diagnostic visit, Houston: $85 to $150 (ConsumerAffairs)
• Capacitor, Houston: $150 to $400 (ConsumerAffairs)
• Refrigerant leak repair and recharge, Houston: $300 to $1,000 (ConsumerAffairs)
• Compressor, national: $600 to $2,500 (HomeGuide)
• After-hours labor, national: $160 to $250 an hour (HomeAdvisor)

If the system is out in a heat wave, see emergency AC repair in Houston; if the repair is large on an older unit, compare it with AC installation in Houston.