Energy Efficient Fiberglass Entry Doors

The benefits of energy-efficient fiberglass.

Fiberglass entry door

Therma-Tru specializes in manufacturing fiberglass doors, having brought the first fiberglass door to market in 1983. Compared to its wood counterparts, fiberglass doors - the fastest-growing area of the entry door market - are more durable, longer-lasting and energy-efficient. And with innovative graining processes, including Therma-Tru’s AccuGrain® technology, their fiberglass doors have a beautiful, traditional wood appearance to enhance the overall look of consumers’ homes.

Therma-Tru fiberglass doors provide as much as four times the insulation of most wood doors.* Today, more than 80% of Therma-Tru’s door and glass options are National Fenestration Rating Council (NFRC) certified and ENERGY STAR qualified, helping homeowners reduce their heating and cooling costs and their carbon footprints.
*Comparison of fiberglass to wood doors, both without glass.