Duratherm Window
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Duratherm Window
High-quality hardwood windows are true works of art. Designed as statement pieces and to set the tone of your project, these products can be customized with split-species. With world-renowned expertise, anything is possible. Custom built to meet your design and its unique specifications, our hardwood doors deliver authenticity and exceptional quality.

Create design exclusivity with doors made in any wood species and in split species designs. Gather inspiration from award-winning Duratherm projects that exemplify the quality and diversity of our wood windows and doors. We've done some extreme things with our windows and doors, and have found people at Duratherm not just willing, but actually excited, to be pushed to their limits.

Opening to universal praise from the design community including The New York Times, Architectural Record and Vanity Fair, the LEED Gold Certified Barnes Museum features window walls that bathe the artwork in natural light while protecting it from the brutal sun.
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Our rich history of thousands of projects and of working with the world's signature architects for over 50 years is only the beginning. After World War II ended, our founder Phil Cole started Cole's Mill, a millwork company focusing mostly on door and window trim, interior doors, wainscoting and cabinetry.
Duratherm employees come from all walks of life. They each bring skills and expertise that are indispensable to our operations. Nearly 70 percent of our employees have 10 years or more of experience at Duratherm, and over 40 percent have worked here for 20 years or more. Experience is important and we have it from top to bottom.
We've done some rather extreme things with our windows and doors, and have found people at Duratherm not just willing, but excited, to be pushed to their limits. Duratherm defines the category of all-wood, completely custom, hardwood windows and doors that deliver on your architect vision - and everyone knows it.
Whatever the opening, the hardwood materials, the timetable for delivery and the hardware you want. It's not only possible; it is what we do. Tradition is especially meaningful when expertise, innovation and ingenuity are the tradition. In the development of our products, we have always exacted the highest standards of performance, adaptability, durability, ease of maintenance and basic, irresistible beauty in everything we do.
At Duratherm, we are continuously identifying, prioritizing, implementing, and monitoring all opportunities to improve our operational efficiencies in order to reduce our carbon footprint. We are committed to strengthening our role as a concerned corporate citizen of our community. The logistics of sustainability is an important effort, with a payoff at the end.
Reviews (1)
Michael Mayhew
Michael Mayhew
Apr 15, 2020
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A wonderful environmentally conscience business who's designers & craftsmen create stunning spiral staircases, doors, window walls and other wood products.