Houston, TX · 2026
AC repair in Houston
By the HeatAndAirCost editors · Last updated October 5, 2026 · How we research prices
Short answer
AC repair in Houston usually falls between $150 and $650 for most jobs, with a national average near $350 and a $75 to $200 diagnostic fee before any parts. NOAA normals put the city at about 101 days a year at 90°F or hotter and roughly 3,362 cooling degree days, so Gulf Coast humidity keeps both the cooling and the dehumidifying side of the system working long days for most of the year.[1]
What a Houston summer puts on the air conditioner
At Houston Hobby Airport, NOAA's 1991 to 2020 normals show about 101 days a year at 90°F or hotter and roughly 3,362 cooling degree days, against only about 1,098 heating degree days. The cooling side of the system does nearly all of the year's work here, and Gulf Coast humidity means it is removing moisture as much as heat for long stretches of spring, summer and fall.
That combination of heat and humidity is hard on the parts that start and stop the compressor and on the coil that handles moisture. A weak run capacitor can hold up through a mild week and fail on the first truly humid afternoon, and a system that is constantly wringing water out of the air also leans harder on its condensate drain. A clogged drain line is one of the most common reasons an AC trips off and stops cooling in Houston.
Before booking a repair, replace the indoor filter and check that the condensate line near the indoor unit is draining steadily rather than dripping or backed up; neither step costs anything. If the outdoor unit runs fine but the house still feels damp and warm, humidity load rather than a broken part may be part of the story, though a technician can confirm it.
Common AC problems on the Gulf Coast
Humidity shapes most of the AC calls Houston homeowners make. A few free checks can rule out the simplest causes first.
- Water leaking or pooling near the indoor unit. Houston's humidity means the AC is pulling a lot of moisture out of the air, and a clogged condensate drain is one of the most common reasons water shows up near the indoor unit or the system shuts off on a safety switch. Clearing the drain line often restores cooling without needing a part.
- AC runs constantly but the house still feels damp and warm. A dirty filter, a low refrigerant charge, or a coil that cannot shed heat fast enough can all leave the system running without really cooling. In Gulf Coast humidity this can also mean the system is removing moisture faster than heat, which feels similar but points to a different fix.
- Electric bill jumps without a thermostat change. A system with a dirty coil, low refrigerant, or a failing capacitor runs longer to hit the same setting, and that shows up on the power bill before it shows up as a total breakdown. It is worth having a technician check efficiency rather than waiting for the unit to fail outright.
Texas HVAC licensing for Houston contractors
Texas licenses HVAC contractors at the state level rather than city by city. The Texas Department of Licensing and Regulation (TDLR) issues the Air Conditioning and Refrigeration Contractor (ACR) license, and any company installing, repairing, or maintaining AC and refrigeration systems in Houston must hold or employ someone with that license.
Before hiring, ask for the contractor's TDLR ACR license number and verify it on the TDLR website, and confirm they pull a permit for a full AC replacement or major repair.[3]
Houston-area neighborhoods we can connect you across
Across the Houston area, the independent, licensed contractors we work with cover neighborhoods including:
Downtown · Midtown · Montrose · The Heights · River Oaks · Memorial · Bellaire · West University Place · Katy · Sugar Land · The Woodlands · Pearland · Spring · Cypress
We are not a contractor and do not have an office in Houston. We connect you with independent, licensed HVAC contractors who serve these areas.
Houston by the numbers: climate, energy prices, homes and contractors
Federal figures for Houston, each linked to its source and dated. They describe local conditions; they are not quotes and do not rate any business.
How hard Houston's climate works an HVAC system
Degree days count how far each day's average temperature sits from 65°F. Cooling is the bigger job here. A normal year carries about 3.1 times as many cooling degree days as heating degree days, so the air conditioner or heat pump does most of the system's annual work. At this station the normal summer high is 93°F (June through August) and the normal winter low is 48°F (December through February).
Source: NOAA NCEI U.S. Climate Normals, 1991 to 2020, station HOUSTON HOBBY AP (USW00012918), 12.1 miles from the Census center point of Houston. Data as of 1991-2020. Retrieved October 5, 2026.
What electricity and natural gas cost in Texas
Homes in Texas paid an average of 15.47 cents per kilowatt-hour in 2025, 11% below the U.S. average of 17.30 cents. Natural gas delivered to homes averaged $17.98 per thousand cubic feet in 2024, 24% above the U.S. figure of $14.50. An air conditioner runs entirely on electricity, so the state rate sets the price of every extra hour of cooling. If a summer bill jumps without a matching heat wave, our high electric bill from AC guide lists the checks to run first.
Source: U.S. Energy Information Administration, Texas state energy profile and electricity data browser (average retail price, residential sector), and natural gas prices by state (price delivered to residential consumers). The $ per 1,000 kWh figure is the state average price times 1,000. Data as of 2025 / 2024. Retrieved October 5, 2026.
How Houston homes heat, and how old they are
Electricity is the most common heating fuel in Houston: 64% of occupied homes use it, against 34% on utility gas. The Census category covers heat pumps and electric resistance heat alike, so it does not say which. If yours is a heat pump, our heat pump cost guide covers replacement pricing. Half of the city's housing units were built in 1982 or earlier, and 47% predate 1980, while 17% went up in 2010 or later. Our HVAC lifespan guide explains how long furnaces, air conditioners and heat pumps typically last.
Source: U.S. Census Bureau, American Community Survey 2020-2024 ACS 5-year estimates for Houston city, Texas, table B25040 (House Heating Fuel) and table B25034 (Year Structure Built). Survey estimates carry margins of error; percentages are our arithmetic on the published counts. Data as of 2020-2024. Retrieved October 5, 2026.
Plumbing, heating and air-conditioning businesses in Harris County
The Census Bureau counted 1,187 plumbing, heating and air-conditioning contractor establishments in Harris County in 2023, with 19,695 employees between them. The industry code (NAICS 238220) includes plumbers and counts business locations, not licenses, so treat it as an upper bound on HVAC firms. It names no company; check any contractor's license before you hire.
Source: U.S. Census Bureau, County Business Patterns 2023, NAICS 238220 (program overview). Payroll per employee is annual payroll divided by employees. Data as of 2023. Retrieved October 5, 2026.
What HVAC technicians earn in the Houston-Pasadena-The Woodlands, TX area
The median heating, air-conditioning and refrigeration mechanic in the Houston-Pasadena-The Woodlands, TX metro area earned $58,940 a year in May 2025, 3% below the national median of $61,010. An invoice adds parts, travel, overhead and margin to that wage, so read it as context for labor rates, not a price; our service call cost guide breaks a bill down.
Source: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2025, metropolitan areas, occupation 49-9021, area code 26420 (data file). The U.S. comparison uses the national estimate from the same release. Data as of May 2025. Retrieved October 5, 2026.
Know a fair price first
Before you accept any AC repair quote in Houston, compare it against our researched national ranges on the AC repair cost page. If your system is older and the quote is steep, run the $5,000 rule and check HVAC replacement cost before you commit[2].
Before you call: try the free checks
Not every cooling problem is a repair. Work through the no-tool checks on our AC not cooling and AC blowing warm air guides, and read how to choose an HVAC contractor before you hire.
More guides for Houston homeowners
Start from the symptom you are seeing on the HVAC troubleshooting hub or the HVAC symptoms index, then check the fair price for the repair you are quoted.
Other cities we cover
Labor rates and the failures that show up first change with the climate, so the city pages are written one at a time rather than stamped out. Every metro we have published so far is on the service areas hub.
Nearest city guides
- AC repair in Corpus Christi, TX (177 miles away)
- AC repair in San Antonio, TX (190 miles away)
- AC repair in Dallas, TX (223 miles away)
- AC repair in Fort Worth, TX (237 miles away)
- AC repair in McKinney, TX (248 miles away)
- AC repair in Frisco, TX (248 miles away)
More Texas guides: McAllen · Lubbock · Brownsville · Amarillo · Laredo
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HeatAndAirCost connects homeowners with independent, licensed HVAC contractors. The service is free to you: contractors pay us, and that never changes what you pay. We are not a contractor, we do not perform repairs, and the prices on this site are researched ranges, not quotes.
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Is this covered by a home warranty?
A home warranty is an annual service contract that pays to repair or replace covered home systems and appliances when they fail from normal use, in exchange for a monthly premium and a fixed service fee per visit. It does not cover a failure that has already happened or a fault that existed before the plan started, so it only helps if it is in place before the breakdown.
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People also ask
Houston AC repair FAQs
What does AC repair typically cost in Houston?
Expect $150 to $650 for most AC repairs, with the national average sitting near $350 and a $75 to $200 diagnostic fee charged separately. A capacitor swap typically runs $250 to $400 in labor and parts, while a condensate drain or coil repair runs higher, and a full compressor replacement generally falls between $1,800 and $2,800. These figures come from researched 2026 national data, not a quote from a Houston contractor.
Why does my Houston AC run but the house still feel humid?
An air conditioner cools and dehumidifies at the same time, and in Gulf Coast humidity it can spend a lot of its cycle pulling out moisture before the temperature drops noticeably. A dirty filter or low refrigerant charge can make this worse, so it is worth checking the filter before assuming the system is undersized.
Can heavy rain or flooding damage an outdoor AC unit in Houston?
An outdoor unit that sits in standing water during heavy rain can suffer electrical damage to its controls and wiring. If your unit was submerged or ran water over the base pan, have a technician inspect it before turning it back on rather than testing it yourself.
Do Houston AC contractors need a state license?
Yes. The Texas Department of Licensing and Regulation issues the Air Conditioning and Refrigeration Contractor (ACR) license, and any company installing, repairing, or maintaining AC systems in Houston must hold or employ someone with that license. Verify the number on TDLR's site before hiring.
What is the $5,000 rule for HVAC?
A $380 repair on a 9-year-old air conditioner comes to 3,420 once you multiply age by repair cost, comfortably under the $5,000 mark, so fixing it is the practical call. A $950 repair on a 14-year-old unit comes to 13,300, a total that argues for a new system instead. Our $5,000 rule page spells out the full method.
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