Series 9900 sliding glass doors are made from strong, durable, maintenance free aluminum, featuring our Thermal Barrier. Separating the interior and exterior surfaces, the barrier dramatically reduces heat loss in the winter and heat gain in the summer.
Standard Features
Available Options
To match your home’s individuality, we offer a wide palette of powder coating and anodized finishes.
(Hover/Tap to see color names.)
Oklahoma Owned and Operated
Founded by Bob G. Pool in 1979, Thermal Windows has been custom manufacturing energy efficient windows and sliding glass doors in Tulsa, Oklahoma for over 40 years.
Custom Manufactured for You
None of our doors are mass-produced. We manufacture them in our Tulsa, Oklahoma production facility to your exact specifications. Custom sizes and colors such as bronze and black are our specialty.
Convenience
Thermal Windows sliding glass doors are maintenance-free, made from strong, precision-engineered aluminum, with a durable powder coat finish that never needs painting.
Security
Keyed locks and charlie bars are available options, along with ThermalSafe laminated glass.
At Thermal Windows, we're proud of the quality of our products, installation and service. If a problem occurs that is covered by our warranty, you have the comfort of knowing that you will be dealing directly with us, the manufacturer who is familiar with you and your order, not a factory in a distant state. Since proper installation is a crucial part of window and door performance, our Lifetime Warranty only applies to products installed by Thermal Windows.
Take a look at some of the recent images of our Sliding Glass Doors in use.