Types of Windows

Window Types

Single Hung Windows

Our Single Hung Windows slide up and down from the bottom. The top sash is fixed. The bottom sash will fold in to allow cleaning from the inside of your home. Our Single Hung Windows come standard with screens over venting portion. Learn more about our single hung windows.

Double Hung Windows

On our Double Hung Windows both the upper and lower sash slide up and down. Additionally, both upper and lower sashes will fold in to allow cleaning from the inside of your home. Our Double Hung Windows come standard with full screens. Learn more about our double hung windows.

Sliding Windows

Our horizontal sliding windows are available in a variety of configurations: Single Sliders, Double Sliders, Picture Sliders and Center Sliders. The Vinyl Sliding systems fold in and both the Aluminum and FiberGlass lift out for easy cleaning. Learn more about our sliding windows.

Casement and Awning Windows

Casement, Awning and Hopper windows are not like the windows we remember from the 50’s. They operate much smoother and have the advantage of multiple lock systems. If you are seeking a modern or mid-century modern look for your home these windows in combination with our fixed windows are just the ticket. We can even do electric operators if you have a window too high to reach. Learn more about our casement and awning windows.

Tilt and Turn Windows

Combining ventilation with easy cleaning Tilt ‘n Turn windows are the ultimate in European Styling. Fiberglass is the perfect frame material for the Tilt ‘n Turn due to its strength and slim line. Learn more about our tilt and turn windows.

Patio Doors

These heavy duty sliding patio doors are incredible. Designed for high traffic and custom made from our strong, durable, maintenance free thermal barrier aluminum, featuring our polyurethane thermal barrier. These are not your typical residential sliding doors! Learn more about our patio doors.


We are proud to offer our customers the ThermaTru® entry door systems for their homes. Learn more about our doors.

Custom Windows

We can build almost any shape window for your home. We custom make all of our high performance windows based on your designs. Learn more about our custom and special shape windows.

Your Source for Windows in Dallas / Fort Worth

Thermal Windows is conveniently located in both Dallas and Fort Worth so if you are looking for Replacement Windows in Dallas, or Replacement Windows in Fort Worth you’ve come to the right place. We are your source for vinyl, aluminum, fiberglass replacement windows in the DFW Metroplex. We service the following cities across Dallas / Fort Worth:

Addison, Aledo, Allen, Argyle, Arlington, Aubrey, Bedford, Blue Mound, Carrollton, Celeste, Colleyville, Coppell, Corinth, Crossroads, Dallas, Denton, Desoto, Double Oak, Duncanville, Euless, Everman, Farmers Branch, Flower Mound, Forest Hill, Fort Worth, Ft. Worth, Frisco, Garland, Glenrose, Granbury, Grand Prairie, Grapevine, Haltom City, Highland Park, Highland Village, Hurst, Irving, Keller, Kennedale, Lake Dallas, Lake Worth, Lantana, Las Colinas, Lewisville, Mansfield, McKinney, Mesquite, North Richland Hills, Pantego, Pilot Point, Plano, Prosper, Red Oak, Richardson, Richland Hills, Roanoke, Rockwall, Rowlett, Saginaw, Sanger, Sherman, SouthLake, Terrell, The Colony, Trophy Club, University Park, Watauga, Weatherford, WestLake, Westworth, TX