Our Boston design center and Marvin showroom brings new meaning to the term “window shopping.”

It All Starts Here

Start your residential or commercial project in the JB Sash Window and Door Design Center & Marvin Showroom. Explore hundreds of products with guidance from Boston’s top window and door experts. 

What's on Display

Our design center and Marvin showroom spans two floors. It features a vast selection of Marvin products, including the Signature, Elevate and Essential window and door collections.

Visitors to our Boston showroom can see, feel, and compare innovative products. Experience top-of-the-line items such as Marvin’s breakthrough Skycove, a projected glass window that can add up to 20 square feet of space to your home, and the Awaken smart skylight. 

Let us help you decide among wood, aluminum-clad, fiberglass, and vinyl window and doors. We’ll discuss their differences and advantages, and determine the best fit for your needs.

In addition to window and doors, our JB Sash showroom features premiere brands of skylights, hardware, and millwork.

Our Location

Our JB Sash Design Center and Marvin Showroom is conveniently located 10 minutes from downtown Boston with dedicated parking. Our 3,000+ square-foot space displays a wide array of window and door styles and finishes. We are open to the public for walk-in visits, but we highly recommend scheduling an appointment ahead of time. Come visit us to start your next residential or commercial project.

Shop the Look

Looking for inspiration? We compiled some of our favorite window collections to browse, with something for every style

Marvin Signature®

The Marvin Signature® collection offers our broadest range of product types, sizes, configurations, and design options. You’ll experience the difference in every thoughtful detail, with the highest level of architectural precision and beautiful aesthetics. Featuring the Ultimate, Modern, and Coastline product lines, the Signature collection is a hallmark of Marvin’s design leadership and customer-focused innovation made to inspire truly exceptional spaces.

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Marvin Signature Ultimate Round Top Window


Marvin Signature Ultimate Wood Double Hung Window


Marvin Signature Ultimate Swinging French Arch Top Door

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Marvin Elevate French Sliding Door


Marvin Elevate Casement Windows

Marvin Elevate®

The Marvin Elevate® collection is an ideal blend of remarkable design and superior strength, bringing balance to your style and performance needs. Proprietary fiberglass exteriors stand up to all elements, outperforming and outlasting vinyl, roll-form aluminum and other composites. Warm wood interiors add timeless beauty, while resilient, long-lasting fiberglass stays strong in even the toughest conditions.


Marvin Essential Picture Window


Marvin Essential Picture Window

Marvin Essential®

The Marvin Essential™ collection brings together design, quality, and performance in one streamlined offering. Strong, durable fiberglass exteriors and interiors are both striking and virtually maintenance-free. Simplified options make the order process straightforward, while clean lines and versatile styles make it easy to meet project demands.