Choose Fiberglass And Get The Look Of Wood With Added Energy Efficiency & Durability.

Want the look of wood, but not the maintenance or cost? Fiberglass, an increasingly popular option for home improvement projects, may be the perfect option for you. Fiberglass doors are usually made with an inner frame of wood, a core of foam and a skin of fiberglass. If you want the door to look like wood, you can pay a bit extra and even professionals can’t tell the difference until they are up close. With a fiberglass door, you can save almost half the cost of a wood door and get up to five times the insulation. With a middle-of-the-road cost, the fiberglass door option is hard to beat.

The Main Advantages of Fiberglass Doors

Curb Appeal

Fiberglass doors allow you to choose between a smooth finish or a faux wood grain. The beauty, texture and feel of wood grain is captured by fiberglass entry doors without the inherent challenges of wood.

Energy Efficiency

With an inner frame of wood and a core of foam, fiberglass doors can provide you with the most energy efficient choice for a door. Offering up to 5X the insulation value of wood, fiberglass doors can boost the energy efficiency of your home.


Whether your fiberglass door is painted or stained, it will stand up to the weather and resist fading due to direct sunlight. They are also dent-resistant and can stand up to a lot of wear and tear.

Minimal Maintenance

Fiberglass doors require little to no maintenance. Keeping a fiberglass door clean with soap and water can maintain the appearance of a wood door for many years to come, with little to no hassle.

Featured Product Series: Therma-Tru Classic-Craft American Style Door

Create a timeless Arts and Crafts look. The American Style Collection is inspired by the simple design and handcrafted details of Craftsman and Prairie home styling. It reflects the prized beauty of real Douglas Fir wood grain with all the benefits of fiberglass, thanks to AccuGrain technology. Fiberglass doors represent a significant savings in natural resources while providing durability and energy efficiency. We have been selling and installing Therma-Tru doors from the time we first opened the Custom Exteriors showroom and we still stand by their quality products.

Learn More About Therma-Tru Doors

Contact us or visit our showroom in Pleasanton to choose your new fiberglass door today.

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Great Service Great Windows Great Price

Had all 6 windows and our sliding glass door replaced as retrofits. After several bids Custom Exteriors offered the best product for the best price. Service was fantastic and installation was seamless. We love our windows so much we didn't put the blinds back up on the slider and kitchen/dining room windows. Great noise and energy improvements.

Roy W., Homeowner