South · Climate zones 2–4
HVAC service in Texas
Texas is the largest HVAC market in the country and one of the most varied. Houston and the Gulf Coast are hot and humid, Dallas–Fort Worth sees extreme summer heat and winter ice, Austin and San Antonio are hot with mild winters, and El Paso and West Texas are hot and dry.
- 1,415 ZIP codes covered
- 600 cities and towns
- Licensed contractors
Texas HVAC at a glance
- Climate
- Hot-humid (IECC zones 2–4)
- What it means
- Long cooling seasons and high humidity. Correct sizing, duct sealing and clean condensate drains matter as much as raw cooling power.
- Common systems
- Central AC + gas furnace, Heat pumps, Attic air handlers, Zoned two-story systems
- Coverage
- 1,415 ZIP codes in 600 cities and towns
- Region
- South
Homes & equipment
Heating and cooling in Texas
Central AC with gas furnaces is standard in many metros, while heat pumps are common in newer and all-electric homes. Attic air handlers and ducts are typical, and attic heat is a major source of duct losses.
Winter storms can bring extended freezes and grid stress, which exposes weak heating equipment and frozen condensate lines.
Common problems
HVAC problems we see in Texas
Extreme summer heat
Long stretches of 100°F days wear out capacitors, fans and compressors.
Winter freezes
Rare but severe freezes strain heat pumps and can damage equipment and drains.
Foundation movement
Expansive clay soils in many areas cause settling that affects outdoor units and line sets.
City guides
HVAC city guides in Texas
Recommended
Services Texas homeowners need most
Texas
HVAC services in Texas
Contractor licensing in Texas
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.
Utilities in Texas
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
Texas HVAC questions
How do I verify a Texas HVAC contractor?+
Look up the contractor's license number on the TDLR website.
What should I do with my HVAC during a Texas winter storm?+
Lower the thermostat slightly to reduce strain, keep the outdoor unit clear of ice, and check that condensate lines aren't frozen.
Other states in the South
HVAC help in Texas
Call to be connected with a licensed HVAC contractor serving your ZIP code.