Tell us about the job
Takes about a minute. No obligation.
A contractor quoting a central AC installation in Madison County starts with the house: its square footage, insulation, window exposure, and duct layout. 40 severe weather events were recorded in Madison County, Texas between 2015 and 2024. At that rate, severe weather is an occasional factor in the life of a system rather than a standing one, which means a homeowner who lost a previous unit is more likely looking at an undersized original install or years of deferred maintenance than at storm wear. The sizing question and the quality of the mechanical connections matter more here than weather resilience does.
Ductwork laid down for older equipment carries assumptions about airflow, routing, and load that a new central AC system does not share. Half the homes in Madison County, Texas were built in 1985 or earlier (2020-2024 ACS 5-year). A contractor pricing an installation here has to assess whether existing duct runs can move the volume a modern unit pushes before the equipment itself gets specced, because a mismatch there drives a more invasive job than the unit swap alone. The electrical service gets the same look: what the panel was built to handle and what a new system draws are questions answered on-site, not from a permit date.
What a Central AC System Consists Of
The indoor air handler sits inside the house, usually in a utility closet, attic, or basement, and it is the piece that moves conditioned air through the home. The outdoor condenser unit sits on a concrete pad beside the house and holds the compressor and condenser coil. Together these two units make up the core of the system a contractor installs.
A refrigerant line set runs between the indoor and outdoor units, carrying refrigerant back and forth through insulated copper tubing. The air handler also houses the evaporator coil, which sits above or below the blower, and the blower itself pushes air across that coil and out through the duct connections.
The drawing shows a typical layout, and a licensed contractor determines which configuration and components apply to this particular house.
Get matched in Madison CountyMadison County, by the numbers
40 severe weather events were recorded in Madison 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 Madison County, Texas were built in 1985 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesMadison County, Texas holds 5,107 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 75.3% of the occupied homes in Madison County, Texas (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesRules & Standards Governing Central AC Installation in Madison 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.
Licensing Rules for Madison County, Texas
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 Madison County
Weather places a load on cooling equipment that no spec sheet fully captures on its own. How hard a system has to work, and how long it lasts, is shaped by local conditions, which is why the installation choice is a local one.
40 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.