Installation Services

Your window and door replacement partners.

Your Trusted New England Window and Door Replacement Partners

New, expertly installed windows and doors can improve and preserve your home, save you money, and make your favorite spaces feel more comfortable and secure. JB Sash & Door has the knowledge, skill, and reputation for installing quality windows and doors the right way, and we’re ready to help you with your upcoming replacement project.

Historic Solutions

JB Sash & Door makes it easy to replace historic windows, from design approval to custom fabrication and installation.

The JB Sash Process

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.

Replacement Guide

Our step-by-step Marvin Replacement Guide will give you all the information you need to make your replacement project a success.

Schedule a Consultation

Our window and door specialists will go over your goals for your project, your current window situation, and provide custom recommendations.

Exceptional Windows and Doors, Experienced Installers

JB Sash is proud to be your local Marvin Certified Installing Retailer. We partner with Marvin because of their performance, durability, and beauty. Our Marvin certification speaks to our experience, expertise, and dedication to exceptional service.

Perfecting Our Process for 82 Years

We have served thousands of customers since we opened up shop 82 years ago. Our process is designed with ease and convenience in mind. 


First, we evaluate your current windows and doors to determine which are in good shape and which need replacing.


Then, we walk you through the selection process to choose the products that best fit your style, your design preferences, and your budget.


Your new windows and doors will be installed by our trained professionals with respect to both your time and your home or business.

Replacing Windows 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.

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Your worry-free window & door replacement journey starts here!

Meet Our Replacement Solutions Team

Our installation team is very responsive, and takes the time to understand customers’ needs and concerns. They will help you understand the process every step of the way, ensuring nothing feels overwhelming. They help transform your space and bring your vision to life. 

Replacement Specialist

Gary Troy

Installation Sales

Marilyn Garrett

Installation Coordinator

Heidi Beaudoin

Replacement Specialist

Andrew Clark

From Our Inspiration Center