More than 30 years ago, Therma-Tru engineers revolutionized the door industry by creating beautiful exterior doors with all the benefits and none of the disadvantages of wood.

Energy-efficient materials were selected which out-perform wood materials that don't warp or split even under the most severe weather conditions. 

Ever since, Therma-Tru has ranked as the door industry's foremost innovator. In fact, we are the world's leading manufacturer of insulated door systems. 

The Therma-Tru quest for quality and value continues in each of our product lines. Every component in each door system is designed, engineered and manufactured to work together.