Heat Pump Installation in Mount Vernon

Serving Mount Vernon and every community across Franklin County.

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Step 1 of 3: Equipment
View through a rain-streaked window of a gray horizontal-siding house gable and green leafy trees under an overcast white sky.

A contractor quoting a heat pump installation in Franklin County is not working against a climate that batters equipment season after season. 60 severe weather events were recorded in Franklin County, Texas between 2015 and 2024. At that rate, severe weather is an event here, not a standing condition, which means the variables that drive a correct install are the ones a contractor controls: how the unit is sized for the structure, how the refrigerant lines are run, and how well the system is commissioned before it is handed over. A heat pump installed carelessly in a mild-weather county will still underperform for years.

NOAA National Centers for Environmental Information, Storm Events Database, bulk CSV export, events 2015-01-01 through 2024-12-31.
Attic interior with exposed wooden rafters, an insulated flexible duct running along a plywood floor, fiberglass batt insulation at the eaves, and two cardboard boxes at the far end.

Existing ductwork is what a contractor prices carefully before anything else in Franklin County. Half the homes in Franklin County, Texas were built in 1988 or earlier (2020-2024 ACS 5-year). Duct systems sized and routed for the equipment of that era were not engineered for the static pressure and airflow a heat pump moves, and what looks adequate from a crawlspace access point can turn out to restrict the new unit enough to affect its performance from day one. The electrical service gets the same scrutiny, since a heat pump draws differently than what many of these houses were originally wired to feed.

U.S. Census Bureau, 2020-2024 American Community Survey 5-Year Estimates

What a Heat Pump Installation Puts in Your Home

Isometric grey-toned illustration of a cutaway house showing interior rooms, ceiling ductwork and an air handler, connected by lines to an outdoor condenser unit beside the building.

The outdoor unit sits on a pad beside the house and holds the compressor and the condenser coil, which are the heart of the system. Inside, the air handler mounts in a mechanical room, closet, or attic space and pushes conditioned air through the home. Together these two cabinets do the work the old equipment used to do.

A refrigerant line set runs between the two units, connecting the outdoor and indoor sides through the wall or roofline. A thermostat goes on an interior wall where it reads the living space and tells the system when to run. Some installations also include an auxiliary heat strip inside the air handler for the coldest stretches.

The drawing shows a typical layout, and a licensed contractor will determine exactly what applies to your house.

Get matched in Franklin County

Franklin County, Texas, by the numbers

60

60 severe weather events were recorded in Franklin 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.
1988

Half the homes in Franklin County, Texas were built in 1988 or earlier (2020-2024 ACS 5-year).

U.S. Census Bureau, 2020-2024 American Community Survey 5-Year Estimates
5,121

Franklin County, Texas holds 5,121 housing units (2020-2024 ACS 5-year).

U.S. Census Bureau, 2020-2024 American Community Survey 5-Year Estimates
82.0%

Owners occupy 82.0% of the occupied homes in Franklin County, Texas (2020-2024 ACS 5-year).

U.S. Census Bureau, 2020-2024 American Community Survey 5-Year Estimates
Codes & Standards Governing Heat Pump Installation in Franklin County, Texas1 sourced rules and standards

Licensing and Legal Requirements in Franklin 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.

Texas Department of Licensing and RegulationTex. Occ. Code Ch. 1302 (Texas Department of Licensing and Regulation)Verified 2026-09-10

Severe Weather Events in Franklin County

Extreme weather puts load on heating and cooling equipment, and that load shapes what a heat pump in Franklin County needs to handle over its working life. What the local record shows is part of what informs sizing and installation decisions here.

Severe weather events by county — Franklin County
20100
2015201620172018201920202021202220232024
14

60 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.