National Lumber, a trusted provider of quality building materials since 1934, is a proud affiliate of National Window. Now in its third generation of being family-owned and operated, National Lumber has more than 75 years of experience in providing quality products with exceptional customer service.

Today, National Lumber is New England’s largest independent lumber dealer and employs more than 500 people through its divisions. With product excellence, extraordinary personal attention, and the support of state-of-the-art technology, National Lumber and its family of companies are dedicated to carrying on the tradition of excellent service and quality products.

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Based in Mansfield, MA, National Window offers a wide range of the finest brand name replacement windows and doors, in addition to services such as siding and roofing.

We are big enough to compete with large competitors and small enough to provide true personal attention and accountability.

National Window’s dedication to providing top products at a great price is matched only by its commitment to true professional installation standards. Our fully-licensed expert installation staff and comprehensive lifetime warranties ensure that National Window does the job right.

National Window is an affiliate of National Lumber, New England’s largest independent lumber dealer. As the area’s most trusted name in building materials since 1934, National Lumber has sold more than 1 million windows and is now the proud supplier to National Window.

These high standards are reflected in our A+ rating by the Better Business Bureau as well as our recognition by the Home Builders Association of Massachusetts, Builders Association of Greater Boston and the Bristol Norfolk Home Builders Association.

With National Window, you can rest easy knowing that you are receiving high-quality products and workmanship from a service-oriented team.

To learn more, please schedule an in-home consultation with a trained National Window professional.

HIC Number: 163917

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©2010 NATIONAL WINDOW IS A NATIONAL LUMBER AFFILIATE | 1.508.339.BEST(2378)
NATIONAL LUMBER COMPANY, SUPPLYING THE BUILDING INDUSTRY SINCE 1934 | MANSFIELD, MA
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