Therma-Tru Doors
The Original Fiberglass Entry Door, Built for Style, Security & Lasting Performance
Therma-Tru’s story began in 1962, when David Welles bought a building supply company in Toledo, Ohio. In 1983, the company introduced the Fiber-Classic door, the first fiberglass entry door on the market. It had the beauty of real wood without wood’s tendency to warp, rot, or crack. Today Therma-Tru manufactures fiberglass and steel exterior door systems sold throughout North America. Every door is engineered as a complete system, with a frame, weatherstripping, sill, and glass designed to work together for a tight seal and smooth operation for years to come.
At American Window Company, we’re proud to offer Therma-Tru entry and exterior doors to homeowners throughout Southern California. Our team can help you compare collections, choose the right glass and finish, and ensure a seamless installation from start to finish.
Brochures
View Therma-Tru’s product literature to explore door styles, glass designs, finishes and performance details.
Therma-Tru's Five Door Collections
Therma-Tru organizes its entry doors into five collections, each designed for a specific style, material and budget.
Classic-Craft®
Therma-Tru's premium fiberglass line, with its most authentic wood-grain detailing. The line includes the newly curated Artíssa, Founders, and Visionary collections.
Fiber-Classic®
The door that started it all. Fiber-Classic offers Mahogany or Oak wood-grain fiberglass in popular styles that suit a wide range of homes at an excellent value.
Smooth-Star®
Durable, sleek, and paintable. Smooth-Star comes in a wide range of panel designs and sizes with a smooth finish, ideal for homeowners who want a bold front-door color.
Pulse®
Clean lines and crisp angles for contemporary, mid-century, and modern homes, built to the same performance standards as every Therma-Tru door.
Profiles™ & Traditions
Affordable steel doors with distinctive styling, offering versatile options for front entries, patios, and house-to-garage openings.
Why Choose Therma-Tru Doors?
Therma-Tru engineers every door as part of a complete system, so each component works together for lasting performance.
- Complete Door System: Genuine Therma-Tru frames, sills, weatherstripping, and glass are designed to work together to help keep out drafts, water, and air leaks.
- Low Maintenance: Fiberglass stands up to Southern California sun and heat without splitting, warping, or rotting like wood.
- Energy Efficiency: Fiberglass doors feature a solid polyurethane foam core, and more than 80% of Therma-Tru door and glass options are ENERGY STAR® qualified.
- Security: Therma-Tru fiberglass doors are up to 30% more resistant to kick-ins than standard steel doors in Therma-Tru's impact testing, and an available multi-point locking system secures the door at three points instead of one.
- Design Flexibility: Choose from wood-grain and smooth finishes, decorative and privacy glass, and sidelites and transoms to create a one-of-a-kind entryway.
- Product Warranties: Therma-Tru backs its door systems with a Lifetime Limited Warranty against manufacturing defects.
FAQs
Is American Window Company a Therma-Tru dealer?
Yes. We offer Therma-Tru entry and exterior doors to homeowners throughout Southern California, from our Covina showroom and Chino office to Orange County. Our team helps with everything from choosing a door to professional installation.
Are fiberglass entry doors better than wood or steel?
Fiberglass gives you the look of real wood without the upkeep. It won’t warp, rot, or crack in the Southern California sun, and unlike steel, it typically won’t dent or rust. Steel doors are a more affordable option that still delivers strength and security. The right choice depends on your style, budget, and how much maintenance you want.
What's the difference between Classic-Craft and Fiber-Classic doors?
Both are fiberglass with a wood-grain finish. Classic-Craft is Therma-Tru’s premium line, with its most authentic grain detailing. Fiber-Classic is the original fiberglass door and offers classic Mahogany and Oak grain styles at a great value.
Are Therma-Tru doors energy efficient?
Yes. Therma-Tru fiberglass doors have a solid polyurethane foam core, one of the most energy-efficient door materials available, and most decorative and privacy glass options are triple-pane. More than 80% of Therma-Tru door and glass options are ENERGY STAR® qualified.
Can I add sidelites or a transom to my new door?
Absolutely. Therma-Tru offers matching sidelites and transoms with a wide range of decorative, privacy, and energy-efficient glass options, so you can brighten your entryway and create a custom look.
Do Therma-Tru doors come with a warranty?
Yes. Therma-Tru backs its door systems with a Lifetime Limited Warranty against manufacturing defects, and a transferable version is available. Some coverage has exclusions, including for homes near salt water, so our team will walk you through the details for your door and location.
Do you install Therma-Tru doors?
Yes. American Window Company handles the entire process, from measuring and ordering to professional installation, so your new door fits properly and performs as designed. Request a free quote today.
Find the Right Products for Your Needs
If you need help exploring Therma-Tru’s beautiful entry doors, the experts at American Window Company would be happy to help.