DOORS

Home Begins at the Door.

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Attention to detail and unparalleled performance are just a few of the reasons Therma-Tru doors are the industry standard in excellence and design.

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Therma-Tru continues to lead and grow the industry with innovative and technologically advanced entry and patio door systems.

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When you purchase an entry or patio door from Therma-Tru, you can rest assured knowing that you've purchased a high quality, beautiful product that was built to last.

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Discover the possibilities for your home. Therma-Tru’s superior engineering results in high quality products with enduring beauty.

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Therma-Tru’s fiberglass entry door systems are ENERGY STAR compliant and NFRC3 Certified helping homeowners save money on energy costs and protecting the environment through superior energy efficiency.

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The polyurethane foam inside Therma-Tru’s doors not only provides superior thermal insulation, it also helps insulate against noise pollution.

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Through our dedication to continuous improvement, we are always looking for processes and materials that limit the impact on our environment.

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Therma-Tru is committed to the responsible use of natural resources in creating high-performance entry and patio door systems.

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Therma-Tru® is the leading entry door brand most preferred by builders and remodelers. Founded in 1962, Therma-Tru pioneered the fiberglass entry door industry. Today Therma-Tru offers a complete portfolio of entry and patio door system solutions, including decorative glass doorlites, sidelites and transoms, and door components. JB Sash is Therma-Tru’s key retailer in the Boston market. See Therma-Tru, Classic-Craft, FiberClassic and Smooth-Star doors on display in our state-of-the-art showroom. Let our well-trained sales staff assist you with all your Therma-Tru needs. Make a statement with your home by replacing your drafty old door with an energy efficient, maintenance-free Therma-Tru Door System from JB Sash.