WELCOME TO JB SASH & DOOR

New England Window
& Door
Experts

WELCOME TO JB SASH & DOOR

New England Window
& Door
Experts

At JB Sash, we are more than just a window supplier; we have been a reliable resource for homeowners and industry experts for more than 80 years. As New England's leading Marvin retailer, we are dedicated to delivering quality products and services for your new construction, remodeling, and replacement projects.

Explore Products

Visit Our Showroom

Visit our Marvin showroom for a unique “window shopping” experience. With expert guidance, explore our wide selection of windows, doors, skylights, hardware and more. 

Visit Our Showroom

Visit our Marvin showroom for a unique “window shopping” experience. With expert guidance, explore our wide selection of windows, doors, skylights, hardware and more. 

Window & Door_Installation Services

Window & Door Installation Services

From selection to replacement, all the way through installation, we guide you through every step in the process. JB Sash offers you a full turn-key solution.

Let us help you select and install the best products for your home.

Replacing Window in a Historic District?

We have been designing, building, painting, and installing historically accurate windows in Boston and the surrounding area for more than 80 years.
Our custom historic reproductions match existing windows and fit any brick or wood opening. We work to secure any necessary permits and help ensure your project is granted historic approval.
JB Sash custom millwork

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Our Trusted Partners

At JB Sash, we only partner with brands that share our commitment to the highest standards of excellence. We work exclusively with the following brands because they provide the quality that customers expect from JB Sash & Door. 

We are proud to offer our customers products from: