# HVAC replacement in Houston, TX

Source: 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.

Dry, even cooling for Houston homes.

Houston cools eight months a year, with Gulf dew points in the mid-70s and hot attics. Many suburban homes have the furnace and coil in the attic, and inner-loop townhomes can run hot upstairs.

## Climate

Houston sits squarely in IECC Climate Zone 2A (Hot-Humid). Proximity to Galveston Bay and the Gulf of Mexico creates oppressive latent moisture loads from March through November, alongside frequent 95°F–100°F summer stretches. Single-stage systems that cool too fast leave Houston homes feeling damp and musty; multi-stage moisture removal is essential.

## Local homes

Inner-loop neighborhoods like the Heights, Montrose, and West University mix historic pier-and-beam homes with tight three-story townhomes that struggle with vertical heat stacking. Master-planned communities across Katy, Sugar Land, Cypress, Pearland, and The Woodlands consist predominantly of one- and two-story slab-on-grade brick homes with horizontal furnaces and coils in hot attics.

## Utilities

CenterPoint Energy handles electric transmission and natural gas delivery (with retail electricity chosen through Texas Power to Choose providers), while Entergy Texas serves northern suburbs like The Woodlands and Conroe. CenterPoint and Entergy sponsor efficiency programs for qualifying systems.

## Areas served

- The Heights
- Memorial
- Katy
- Sugar Land
- The Woodlands
- Cypress
- Pearland
- Clear Lake
- Spring
- Bellaire

## Recommended systems

- [AC replacement](https://ethohome.com/services/ac-replacement/): Many Houston homes have a gas furnace in the attic; pairing a two-stage or variable-speed central AC with a variable-speed furnace blower helps remove Gulf humidity.
- [Indoor air quality](https://ethohome.com/services/air-quality/): Whole-home dehumidifiers and high-MERV filtration combat Houston's year-round humidity, mold spores, and Gulf Coast allergens.
- [Heat pumps](https://ethohome.com/services/heat-pumps/): For all-electric townhomes or homeowners replacing older electric air handlers, a variable-capacity heat pump cuts cooling bills and heats efficiently through mild Houston winters.

## Questions

### How do you keep a three-story Houston townhome cool on the top floor?

Three-story townhomes in Montrose, Midtown, and the Heights suffer from severe heat stacking. If the home uses a single zoned system, we verify damper operation and install variable-capacity equipment that maintains static pressure across zones—or upgrade the dedicated upper-floor system.

### Why are float switches and secondary drain pans so important in Houston attics?

A Houston air conditioner condenses massive volumes of water out of humid Gulf air every summer day. Algae or dust can clog a primary drain line; a properly wired float switch and clean secondary pan shut the unit down before water stains your ceiling.

### Does Etho Home handle City of Houston and suburban mechanical permits?

Yes. Whether your property falls under the City of Houston, Sugar Land, Pearland, Pasadena, or unincorporated Harris, Fort Bend, or Montgomery County rules, our licensed partner crews handle required permits and inspections.

- [Build my quote](https://ethohome.com/get-a-quote/?market=texas): Your advisor confirms service at your address.

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.