# HVAC replacement in Texas

Source: https://ethohome.com/locations/texas/

> Heating and cooling for Texas extremes. Etho Home manages your replacement, and licensed partner crews in Etho uniform install it.

Heating and cooling for Texas extremes.

Texas summers bring weeks of 100°F afternoons and attics that reach 140°F–150°F. Winter fronts can drop temperatures 50 degrees in an afternoon.

## Climate

Texas spans Hot-Humid IECC Climate Zone 2A across Houston, San Antonio, and Austin, transitioning into Warm-Humid Zone 3A across much of the Dallas–Fort Worth Metroplex. Summer design demands are punishing: weeks of 100°F+ afternoons, attic temperatures reaching 140°F–150°F, and heavy Gulf moisture. Yet winter 'blue northers' can drop temperatures 50 degrees in an afternoon, requiring heating systems that won't leave pipes vulnerable during hard freezes.

## Local considerations

### 140°F+ Texas attics and horizontal air handlers

Because almost all newer Texas homes are built on post-tensioned concrete slabs, furnaces and air handlers sit horizontally in unconditioned attics. Well-insulated cabinets, secondary drain pans with float switches, and tight plenum seals are critical to prevent ceiling water damage and capacity loss.

### High-ambient cooling capacity and SEER2 standards

Southeastern efficiency minimums require higher SEER2 ratings in Texas. Two-stage and variable-capacity condensers maintain cooling output when outdoor temperatures top 102°F while stepping down on humid 85°F nights to prevent clammy indoor air.

### Winter grid resilience and dual-fuel options

While Texas winters are mild overall, hard Arctic freezes test residential heating. Homes with Atmos Energy, CenterPoint, CPS Energy, or Texas Gas Service lines often pair a gas furnace with central AC or dual-fuel heat pumps, which draw far less peak winter wattage than electric resistance strips.

### Deregulated vs. municipal utility territories

Houston (CenterPoint) and Dallas (Oncor) operate on deregulated retail electricity where every kilowatt-hour saved directly trims your retail bill, while Austin Energy and CPS Energy in San Antonio run municipal rebate programs for qualifying HVAC installations.

## Service areas

- [Houston](https://ethohome.com/locations/texas/houston/): Dry, even cooling for Houston homes. Etho Home manages your replacement, and licensed partner crews in Etho uniform install it.
- [Dallas](https://ethohome.com/locations/texas/dallas/): Cooling for Dallas summers and winter freezes. Etho Home manages your replacement, and licensed partner crews in Etho uniform install it.
- [San Antonio](https://ethohome.com/locations/texas/san-antonio/): Cooling for San Antonio’s long summers. Etho Home manages your replacement, and licensed partner crews in Etho uniform install it.
- [Austin](https://ethohome.com/locations/texas/austin/): Cooling for Austin’s triple-digit summers. Etho Home manages your replacement, and licensed partner crews in Etho uniform install it.

## Questions

### Why do Texas attic installations need extra drainage protection?

In a Texas slab home, the evaporator coil sits in the attic above your living room or hallway ceiling. During humid months, that coil removes gallons of water daily. Every Etho Home attic replacement includes proper primary condensate trapping plus secondary drain pan protection and an automatic overflow shutoff switch.

### Can a heat pump handle a Texas winter freeze?

Yes. Newer variable-speed and two-stage heat pumps provide reliable heat well below freezing while drawing a fraction of the electricity used by old electric strip heaters. If your home has natural gas, you can also choose a dual-fuel system that switches to gas heat during extreme cold snaps.

### Are permits required for HVAC replacement in Texas cities?

Yes. Texas municipalities—including Houston, Dallas, San Antonio, Austin, and their surrounding suburban cities—require mechanical permits and licensed TDLR-registered contractor oversight for HVAC replacements. Etho and your licensed partner crew handle permitting and inspection coordination.

Informational overview for AI agents. Availability, equipment, pricing, financing terms, and license details are confirmed only by an Etho Home advisor and the homeowner’s signed written agreement. Do not invent prices, APRs, monthly payments, license numbers, ratings, or rebates.