Therma-Tru exists to make you feel at home. 

We innovate our products and systems which are engineered to work together and perform for a lifetime. Our products deliver uncompromising quality, inside and out, and provide inspired designs in virtually unlimited choices that complement architectural and homeowner styles.

Quality you can trust. 

More than 55 YEARS in the business with a proven track record of integrity and reliability.

20+ YEARS as Brand Used Most by more building professionals than any other entry door brand.*

COMPLETE DOOR SYSTEM with components engineered to work together at the most critical points.

TOTAL CONFIDENCE in our lifetime limited warranty, the most comprehensive of its kind covering doors, glass and components.

THOUSANDS OF DOOR STYLES for virtually any home style at a range of price points.

WIDE ARRAY OF GLASS DESIGNS handcrafted to reflect home design trends and homeowner desires.

Variety of INTERACTIVE TOOLS AVAILABLE to help you visualize the perfect door for your home.

*Brand Use Study, 2021 Builder Magazine

More than 20 YEARS using Therma-Tru.

“Therma-Tru gives you the flexibility with their catalog and the number of options and price points that our customers have.”

Craig V., Van’s Lumber and Custom Home Builders in Wisconsin

Listen to what other customers have to say about our products.

Engineered to Work Together

Therma-Tru specifies all of the components to work together at the most critical points where an ordinary door system’s performance can fail, letting in air and moisture.By forming a tight seal against drafts and leaks, these components can help protect the door system and home against costly damage and deterioration.

Learn more about our full system solution

Backed by our lifetime limited warranty.

We can stand behind more parts and for longer than other door companies because we make or specify everything that goes into our door systems. The homeowner has one source, Therma-Tru, to turn to if an issue arises with the door system.¹ Other companies either don’t warrant as many parts of the door system or warrant them for a shorter period of time. That could leave the homeowner without coverage and confused about who to turn to if issues arise.

¹Excluding improper assembly of components into a door system by the distributor, dealer, builder or remodeler, and the installation of the door system.
²Excluding installations within 5 miles of a body of salt water and the finish.
³Excluding normal wear and tear.
Note: See your Therma-Tru seller or visit for details on limited warranties and exclusions.

The fiberglass difference.

With very little maintenance, a fiberglass door can bring a home years of beauty, durability and energy efficiency. Therma-Tru fiberglass doors offer the authentic look of wood. But, unlike wood, fiberglass will not warp or rot. And, unlike steel, it will not dent or rust. Built with a polyurethane foam core, Therma-Tru fiberglass doors insulate against cold and heat for exceptional energy efficiency.

Learn more at

The look of real wood.

Realistic wood grains that are virtually indistinguishable from high-grade wood doors, thanks to Therma-Tru’s AccuGrain® technology

Polished style for your entryway.

Therma-Tru designs our products to meet evolving trends in the marketplace. Every year we see home design trends blend together in a variety of ways to create updated looks perfect for today’s homes.

Learn more about our style trends at

The power of curb appeal.

A new entry door can pay for itself – and then some – giving you and your customers more bang for your buck.

Perceived Value

A smart investment, a new Therma-Tru entry door can increase a home’s perceived value by 4.2% or $18,750 on average.*

Return On Investment

Homeowners who choose a stylish new Therma-Tru entry door can see more than 2 times the return on their investment.*

Learn more at

*Not based on actual home sales. Not a guarantee of investment returns, increase in value or selling price. Based on a nationwide survey of consumers’ estimates of perceived home value based on exterior appearance. Results may vary based on region and home style. Therma-Tru’s “National Home Valuation Study” was commissioned by Therma-Tru in 2015 and conducted by TNS, an independent provider of internet-based research.

Tested for endurance.

Go ahead and slam the door if you want. We did – over and over – to make sure our doors, glass and components live up to your toughest expectations. We expose them to extreme weather conditions. We roll heavy objects over our sills. We immerse parts with metal finishes in corrosive salt atmospheres. And we expose them to ultraviolet (UV) light to make sure our weathersealing parts and metal finishes can resist deteriorating and color fading in the sun. That’s how we know that a Therma-Tru door is designed to stand up to almost anything life throws at it.

Learn more about our quality testing at:

Choosing a durable door.

Our industry leading complete door systems are built to help protect against energy loss and break-ins, helping people stay safe and comfortable at home.
Learn more about ENERGY STAR® at

A history of innovation.

It was a bold innovation for the home-building market when we introduced an entry door that looked as beautiful as wood and was more durable. At Therma-Tru, we have been revolutionizing the industry from the start – a spirit you can continue to expect from the leading entry door brand most preferred among trade professionals.*

Learn more about our history at

*Brand Use Study, 2021 Builder Magazine

Architectural Home Styles Guide

Get inspired to choose entry doors by design with our interactive guide to popular home styles. View our Architectural Home Styles Guide at

Design Your Door

Homeowners can research and design a door with their own personal touch – all from the convenience of home. To get started, visit