Big L is celebrating 40 years of providing Western New York with the best window and door products available, and matching it with unbeatable quality service. See the video>>

Big L Windows & Doors's Annual Truckload Sale is on! Take advantage of the biggest savings of the year including installation! Learn More>>

Hassle-Free Financing Options

We make it easy to realize your dreams today! Big L offers a variety of great financing options including "same as cash" financing with no interest and no payments for one year.

Read More
Proud Guild Quality Member

See what the Guild Quality Community is saying about Big L Windows and Doors.

Read More

Welcome to Big L Windows & Doors

The Best in Windows and Doors for Buffalo and Western New York

If it’s a window or door, our people know more

Welcome to Big L Windows & Doors, your first choice for high-quality Windows and Doors. Our extensive selection of cutting edge products deliver unmatched beauty and state-of-the-art performance for energy savings, reduced maintenance and a more comfortable home.

Big L Windows & Doors delivers a wide array of custom-made styles, decorative options, complementary trim selections, and performance packages for a fully customizable solution to suit your individual needs.

At Big L Windows & Doors, we have a reputation for making a Big difference – a Big difference in sales, service, installation, and products.

Big L’s professional approach, highly trained staff, and affordable pricing will help take the stress and confusion out of your new project.

 

Customer Reviews

What our customers say
David C. in Buffalo, NY
I've used Big L more than once and I will use them again. I would recommend them to anyone.


View all feedback from Big L Windows & Doors

News and Events

BUILDER Top Brands in 2017

Marvin Windows and Doors and Integrity Windows and Doors recognized as Top Brands in 2017. For the second year in a row BUILDER Magazine recognized Marvin Windows and Doors and Integrity Windows as top brands in...
Read More >>

May is National Home Improvement Month

In honor of May, National Home Improvement Month, the National Association of the Remodeling Industry (NARI) is providing chapters and members with tools to get homeowners interested in remodeling this...
Read More >>