THT Windows provides professional replacement window installation across the greater Houston area — from Tomball to Galveston, The Woodlands to Katy.
Our crew lives and works in the communities we serve — familiar with local home styles, codes, and climate demands.
Free in-home consultations available across the Houston metro — typically scheduled within the same week you call.
No obligation visits anywhere in our service territory. We come to you, measure every opening, and provide clear recommendations.
We serve homeowners throughout the greater Houston metro. Don't see your city? Call us — our service area is always expanding.
Northwest Houston suburb — full service area
North Houston master-planned community
North Houston — Harris & Montgomery counties
Montgomery County seat, Lake Conroe area
Northwest Harris County, Cy-Fair area
West Houston — Harris, Fort Bend & Waller
Montgomery County, northwest corridor
Fort Bend County, southwest Houston
South Houston suburb, Brazoria County
Fort Bend County, southwest Houston
Galveston Island, coastal Houston area
Not listed? Call us — we may serve your zip code.
Houston's climate is unique — extreme heat, high humidity, and the occasional severe storm demand windows built and installed specifically for these conditions. Our local team knows what works.
Call or schedule online to confirm we serve your area and book your free in-home estimate. Most appointments are available within the same week.