The trusted window, door and siding store for greater St. Louis & St. Charles county.




We Proudly Carry The Best In Windows, Doors and Siding

Combining unmatched performance with distinctive style for a perfect fit.

Who Is Penny Windows?

For over 60 years, serving greater St. Louis and St. Charles county with the best in windows, doors and siding.

By offering top of the line products at a discount price, Penny Window gives homeowners a simple – and affordable – way to add fresh, new features to their home.


What Our Customers Say

About us, our products, pricing and workmanship.

They went above and beyond to get the information to us, and when we ordered it, it came in within 2 weeks. Their knowledge made it happen for us. Joe of St Louis, MO.

Penny Window just finished installing my new windows, they are beautiful and better looking than all the neighbors windows. Mr, Pappert, O’Fallon, MO.

“You Set The Limit” Visa Gift Cards

When you put your trust in us, we’ll reward you with a Visa gift card as our way of saying, thank you!

It truly pays to work with Penny Window – literally!