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>>

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.

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Proud Guild Quality Member

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

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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
Mary N. in Williamsville, NY
I am very satisfied with the product and the workmanship.


View all feedback from Big L Windows & Doors

News and Events

The Rise of The Traditional Home

In an age of Houzz and Pinterest, an unprecedented online buzz on both contemporary and traditional home design has inspired an openness to merging two distinctly different styles. Inevitably, savvy homeowners...
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This Old House, Generation Next to Benefit mikeroweWORKS

In 2017 mikeroweWORKS is going to give away a lot of work ethic scholarships. We're not sure how many yet, but so far they have raised over $500,000, and they think that there is a lot more on the horizon. Along...
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