Integrity Windows by Marvin

New & Replacement Windows with Integrity

Marvin’s Integrity windows line, ideal for homes and other buildings in the sometimes harsh seasons of Vermont and New Hampshire, was developed with the goal of combining strong values with strong materials. Integrity windows are, quite simply, built to last, outperforming other brands with its innovative Ultrex Fiberglass framework.

Ultrex Fiberglass was developed and patented over twenty years ago, during a period when Integrity already stood at the forefront of fiberglass window and door construction. Besides its durability and energy efficiency, Ultrex is eight times stronger than vinyl and three times stronger than wood/vinyl composites, making it a perfect material to withstand brutal winter winds and violent spring rains.

Integrity windows also feature thinner frames, thanks to the strength of Ultrex, which increases glass surface and yields a larger view. And with the Jancewicz & Son team at the helm of your project, customers can rely on the standard of excellence and quality of work we have been known for since 1933.

Call Today For Marvin Integrity Window Estimates!

For Marvin Integrity windows, as well as information about our industry leading warranties, call 1.800.281.3585. Proudly serving our clients for over 90 years in Southern Vermont, Southern New Hampshire and Western Massachusetts.

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Jancewicz & Son

Since 1933 we have been providing quality home improvement services for residents in Southern Vermont, Southern New Hampshire and Western Massachusetts. Click or call today to get a free quote for your roofing or remodeling needs.


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Windows & Doors, Siding & Roofing For
Homeowners in VT, NH & MA