Environmental Protection Agency

Home repairs that create even a small amount of lead dust are enough to harm your child. To protect your family, if you live in a house or apartment that was built before 1978, make sure you hire a contractor who is Lead-Safe Certified. Big L Windows and Doors has been certified by the US Environmental Protection Agency (EPA) and our installers have been trained in following lead-safe work practices.

Guild Quality

As a GuildQuality Guildmember, Big L Windows & Doors relies on our customer surveying to help them deliver an exceptional customer experience. We have surveyed customers on behalf of Big L Windows & Doors in Buffalo, West Seneca, Williamsville, East Aurora, East Amherst, Lancaster, Amherst, Cheektowaga, Tonawanda, Orchard Park and 15 other cities in New York, to help provide a better experience for our customers. Learn more!

Angies List

Big L Windows and Doors has received the Angie’s List 2013 Super Service Award for the second year in a row! Having received a number of highly positive reviews on Angie’s List from valued customers across western New York, we are truly honored to receive this award for our customer service and quality craftsmanship. Here’s a snapshot of what people had to say about Big L Windows & Doors!

Erie County "Thank A Vet" Program

Big L Windows and Doors is a proud participant of the Erie County Clerk's Office "Thank A Vet" Discount Program. This program is a way for our County to recognize the service and sacrifices made by our local veterans, and Big L is proud to be a part of the program.