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A contractor quoting a central AC installation in Travis County has to account for what this climate regularly asks of a system before settling on equipment size or specifying components. 277 severe weather events were recorded in Travis County, Texas between 2015 and 2024. At that rate, severe weather is a standing feature of operating here, which means a unit sized for a milder load will run harder, cycle less efficiently, and reach its stress points sooner. The contractor's sizing calculation and the quality of the install both have to reflect what the equipment will actually face, season after season, in this county.
Ductwork laid down for an older system carries assumptions about static pressure, return air volume, and load distribution that a new unit will test on day one. Half the homes in Travis County, Texas were built in 1999 or earlier (2020-2024 ACS 5-year). A contractor quoting a central AC installation here has to pull back enough of that existing ductwork to judge whether it will move air the way the new equipment expects, and in a house where the ducts have never been rebalanced, the answer changes the job significantly. The electrical service is a separate check. Both are fixed costs that show up before any equipment is priced.
What a Central AC System Includes
The indoor air handler sits inside the house, usually in a closet, attic, or utility room, and holds the evaporator coil that absorbs heat from the air moving through your home. The outdoor condenser unit sits on a concrete pad beside the house and carries the compressor and condenser coil, which release that heat outside.
A refrigerant line set runs between the two units, carrying refrigerant back and forth to keep the system working as one. The thermostat mounts on an interior wall and is the control point that tells the system when to run and when to stop.
The drawing beside this text shows how these pieces relate to one another in a typical layout, and a licensed contractor will assess what applies to your specific house.
Get matched in Travis CountyTravis County, by the numbers
277 severe weather events were recorded in Travis County, Texas between 2015 and 2024.
NOAA National Centers for Environmental Information, Storm Events Database, bulk CSV export, events 2015-01-01 through 2024-12-31.Half the homes in Travis County, Texas were built in 1999 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesTravis County, Texas holds 618,236 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 52.1% of the occupied homes in Travis County, Texas (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesCodes & Standards Governing Central AC Installation in Travis County, Texas9 sourced rules and standards
What the Installation Actually Looks Like
Split-system central air conditioners rated below 45,000 Btu/h manufactured on or after January 1, 2023 must meet a federal minimum of 13.4 SEER2.
Split-system central air conditioners rated at or above 45,000 Btu/h manufactured on or after January 1, 2023 must meet a federal minimum of 13.4 SEER2.
Split-system central air conditioners manufactured between January 1, 2015 and December 31, 2022 had to meet 13 SEER, the metric that preceded SEER2.
Single-package central air conditioners manufactured on or after January 1, 2023 must meet a federal minimum of 13.4 SEER2.
Space-constrained central air conditioners manufactured on or after January 1, 2023 must meet a federal minimum of 11.7 SEER2.
Federal efficiency standards for split-system central air conditioners and heat pumps are set on each certified combination of outdoor unit and indoor coil rather than on the outdoor unit alone.
Residential and light commercial air conditioning and heat pump systems assembled in the field, including mini-splits and unitary systems, may not be installed on or after January 1, 2025 using a refrigerant with a global warming potential above 700.
A field-assembled system whose specified components were all manufactured or imported before January 1, 2025 carries no installation compliance date under the refrigerant restrictions and may still be installed.
What Travis County, Texas Requires for HVAC Installation
In Texas a person may not engage in air conditioning and refrigeration contracting unless that person holds a license issued under the state air conditioning and refrigeration contractor law.
Severe Weather Events in Travis County
Weather puts a load on HVAC equipment, and that load varies by where you live. Knowing what conditions a system has to handle in Travis County shapes what size and type of installation makes sense for a home here.
277 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.