Welcome to JB Sash & Door Inc.

JB Sash & Door Company features Marvin window and door products.

Our two convenient showrooms in Chelsea and Waltham, MA allow architects, builders and homeowners to view full size displays, in real home settings, to help you visualize how Marvin products will complement every new home or home improvement project.

JB Sash & Door's highly skilled, knowledgeable team of Marvin Window and Door professionals will help you select the right product for your project. Experience the difference at JB Sash & Door - where we have been dedicated to meeting New England's door and window needs for nearly 70 years.

Energy Efficient Windows and Doors

We can help you choose the windows and doors that give you the personalized look you desire - and the energy efficiency you need. For new construction, remodeling or replacement, virtually all of Marvin's products meet or exceed federal Energy Star guidelines.

Marvin windows and doors are made to order and built around you. So you can have just the look you want while still maintaining maximum energy efficiency. There are a variety of options and features you can choose from to get the most out of your windows. Depending on your specific energy needs, Marvin offers LowE II and LoE-366 coatings, and dual and tri-pane glass options. Our expert staff can help you find the mix of efficiency options that are just right for your home.