Harris County · Texas
HVAC service in Houston, TX
Houston is one of the most humid large cities in the country, and its air conditioners run for most of the year. Homes range from 1920s bungalows in the Heights to post-war ranch homes and sprawling newer subdivisions toward Katy and Cypress, most with attic air handlers and long duct runs.
- Same-day appointments when available
- 174+ ZIP codes
- Licensed contractors

Neighborhoods: The Heights, Montrose, Midtown, Katy area, Clear Lake, Kingwood, Westchase, Spring Branch. Service area, not an office.
Local homes
Houston housing and HVAC
Slab-on-grade homes with attic ductwork are typical, and many two-story homes run two systems. Older homes inside the 610 Loop may have pier-and-beam foundations with ducts under the floor. Aging R-22 equipment is still common in 1980s and 1990s neighborhoods.
Summers are long, hot and muggy, with high dew points from May through October. Winters are short and mild, though occasional hard freezes stress heat pumps. Hurricanes and tropical storms bring flooding and power outages.
Permits and seasonal timing in Houston
Inside city limits, mechanical permits come from the City of Houston; suburbs like Pasadena, Sugar Land and Pearland run their own permit offices. The best time to schedule AC maintenance is February through April, before the first stretch of 90°F humid days. Replacement work booked in fall or winter usually means shorter waits than in July.
Humidity and mold
Oversized systems and leaky attic ducts leave homes clammy and promote mold on registers and in air handlers.
Clogged condensate drains
Houston air conditioners pull a lot of water from the air, so algae-clogged drains and tripped float switches are frequent calls.
Flood-damaged equipment
Outdoor units and air handlers exposed to floodwater should be inspected before they are restarted.
Common calls
Popular HVAC services in Houston
Also available: emergency HVAC and all HVAC services.
Full service list
All HVAC services in Houston
Searching for HVAC service near me in Houston? Every service below is available across Houston ZIP codes 77001, 77002, 77003, 77004, 77005 and nearby, including The Heights, Montrose, Midtown.
Air Conditioning in Houston
Heating in Houston
Heat Pumps in Houston
Ductless Mini-Splits in Houston
Ductwork in Houston
Indoor Air Quality in Houston
Thermostats & Controls in Houston
Maintenance & Inspections in Houston
Commercial HVAC in Houston
Houston at a glance
- County
- Harris County
- Region
- Texas · South
- ZIP codes
- 77001, 77002, 77003, 77004, 77005, 77006, 77007, 77008, 77009, 77010, 77011, 77012, 77013, 77014, 77015, 77016, 77017, 77018, 77019, 77020, 77021, 77022, 77023, 77024, 77025, 77026, 77027, 77028, 77029, 77030, 77031, 77032, 77033, 77034, 77035, 77036, 77037, 77038, 77039, 77040, 77041, 77042, 77043, 77044, 77045, 77046, 77047, 77048, 77049, 77050, 77051, 77052, 77053, 77054, 77055, 77056, 77057, 77058, 77059, 77060, 77061, 77062, 77063, 77064, 77065, 77066, 77067, 77068, 77069, 77070, 77071, 77072, 77073, 77074, 77075, 77076, 77077, 77078, 77079, 77080, 77081, 77082, 77083, 77084, 77085, 77086, 77087, 77088, 77089, 77090, 77091, 77092, 77093, 77094, 77095, 77096, 77098, 77099, 77201, 77202, 77203, 77204, 77205, 77207, 77208, 77209, 77210, 77212, 77213, 77215, 77216, 77217, 77218, 77219, 77220, 77222, 77223, 77224, 77225, 77226, 77227, 77228, 77229, 77230, 77231, 77233, 77234, 77235, 77236, 77237, 77238, 77240, 77241, 77242, 77243, 77244, 77245, 77248, 77249, 77251, 77252, 77253, 77254, 77255, 77256, 77257, 77258, 77261, 77262, 77263, 77265, 77266, 77267, 77268, 77269, 77270, 77271, 77272, 77273, 77274, 77275, 77277, 77279, 77280, 77282, 77284, 77287, 77288, 77289, 77290, 77291, 77293, 77297, 77299
- Neighborhoods
- The Heights, Montrose, Midtown, Katy area, Clear Lake, Kingwood, Westchase, Spring Branch
- Climate
- Hot-humid (IECC zones 2–4)
Licensing and utilities for Houston
Texas licenses air conditioning and refrigeration contractors through the Texas Department of Licensing and Regulation (TDLR). Every licensed contractor's number should appear on contracts and vehicles.
Most of Texas uses a competitive retail electricity market on the ERCOT grid, with delivery companies such as Oncor and CenterPoint. Austin Energy, CPS Energy and other municipal utilities serve their cities directly. Atmos Energy, CenterPoint and Texas Gas Service supply natural gas.
FAQ
HVAC questions in Houston
How do I find HVAC service near me in Houston?+
Call or send a request with your Houston ZIP code. It goes to an independent, licensed HVAC contractor who serves your neighborhood for AC repair, heating, heat pumps, ducts and installs.
Why does my Houston home feel humid even with the AC on?+
The system may be oversized, the fan may be set to On instead of Auto, or attic ducts may be leaking humid air. A tech can check airflow, charge and duct leakage.
Who handles HVAC permits in Houston?+
The City of Houston's permitting center issues mechanical permits inside city limits, and surrounding cities and Harris County handle their own areas.
Helpful guides
Nearby towns
HVAC help in Houston
Call to be connected with a licensed HVAC contractor serving your ZIP code, or send a request online.