
Doors and Windows
Let the team of experts at Concord Lumber & Building Center, in either our Concord, MA or Littleton, MA locations, guide you through the door and window selection process for your home, job site or commercial project.
Our Products
We offer a large selection of dependable window and door brands, to address every projects needs and homes' aesthetics.
As the most recognized brand in the window industry, Andersen can always be counted on for quality craftsmanship and reliable performance.
When you purchase an entry or patio door from Therma-Tru, you can rest assured knowing that you've bought a quality product that is built to last.




Marvin windows and doors are inspired by how people live. You can always expect innovative
solutions, superior quality, and thoughtful support from Marvin.
Extensive Showrooms
Visit one of our Concord Lumber & Building Center showrooms at either our Concord, MA or Littleton, MA locations, to get a first-hand look at our complete line of windows, doors and skylights. With product displays from Andersen Windows and Therma-Tru Doors, and more we are confident our team can help you assess your options and find the right fit for your home or project.
Team of Experts
More than 100 years of combined experience in door and window sales help ensure that our Window and Door Specialists are always ready to help you select the perfect windows and doors for your project. Contact a member of our team today!
Benefits of choosing Concord Building & Design Center for your window & door installations:
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We will manage the entire installation process for you in a timely manner
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FREE quote & in-home measuring or jobsite consultation
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Our subcontractors are trusted, licensed & insured professionals
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Factory trained in-house service technician
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5 -year warranty on our installations + manufacturer's product warranty
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A trusted, local company that has been serving the community since 1946
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Massachusetts HIC Registration: 153603 (Concord Building & Design Center)
We offer FREE in-home consultations, measuring and quotes!
For more information, contact our Door and Windows Department in Littleton at 978-486-9877, stop by our showroom, or contact us today!