Tell us about the job
Takes about a minute. No obligation.
A contractor quoting a central AC install in Zavala County needs to know what the existing equipment has actually been asked to carry before they can spec a replacement correctly. 19 severe weather events were recorded in Zavala County, Texas between 2015 and 2024. At that rate, severe weather is an occasional event here, not a standing condition, so a failing system is far more likely to reflect age or a poor original install than storm load. Sizing the new unit to the house and getting the refrigerant charge right on day one matters more in this county than planning around weather stress.
Ductwork laid down before central air conditioning was standard was sized and routed for a different purpose. Half the homes in Zavala County, Texas were built in 1979 or earlier (2020-2024 ACS 5-year). That means a contractor installing a new central AC system in a typical Zavala County house has to assess whether the existing ducts can carry the load the new equipment delivers, not just where the air handler and condenser go. If the distribution system is undersized or routed in a way that creates pressure problems, the ductwork becomes the job. The electrical service gets the same look, since the draw of a modern unit has to be matched against what the panel can supply.
What Goes Into a New Central AC System
The outdoor condenser unit sits outside the house, usually on a concrete pad along an exterior wall, and houses the compressor and condenser coil. Inside, the air handler or furnace blower sits in a utility closet, basement, or attic and moves air through the home. These two units are the core of what a contractor installs.
A refrigerant line set runs between the indoor and outdoor units, carrying the refrigerant that makes the system work. The thermostat mounts on an interior wall and gives the homeowner control over the whole system. A disconnect box goes on the exterior wall near the condenser, giving the contractor a safe shutoff point for the outdoor equipment.
The drawing shows the typical layout of these components, and a licensed contractor determines exactly how each one fits the conditions of your house.
Get matched in Zavala CountyZavala County, by the numbers
19 severe weather events were recorded in Zavala 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 Zavala County, Texas were built in 1979 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesZavala County, Texas holds 3,946 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 69.0% of the occupied homes in Zavala 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 Zavala 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 Zavala 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.