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Windows

Doors

Siding

Gutters

Penny Window has been the trusted window, door, siding & gutter store for St. Louis & St. Charles county since 1953.

Combining unmatched performance with distinctive style for a perfect fit.

Find expert tips on buying windows and doors in this informative eBook:

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Energy Efficient Windows

Energy costs are the rise!   Consider installing energy efficient windows to reduce your home energy consumption and save!

We offer the best in energy efficient windows, Anderson.  These windows reduce the environmental impact homeowners have and increase savings.

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Who is Penny Window?

For over 60 years, we have been serving greater St. Louis and St. Charles County with the best in windows, doors, and siding.

We offer top of the line products at a discount price.  Penny Window gives homeowners a simple and affordable way to freshen up their home.

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What Our Customers Say

About us, our products, pricing and workmanship.

A large assortment of windows new and used. They install what the sell. Check them out.
Paul Johnson
12:34 13 Sep 18
First time using them, and found them to be very professional. Needed to replace broken glasses on security door....looked excellent! Plus had my grandbaby with me...they graciously carried frame to car and put in my car. It was truly helpful to me!!! Thanks for the great customer service 😊
adoria lacey
15:46 23 Aug 18
Had windows put in in 2016. Great job
Jessica Green
01:05 30 Jul 18
They're ready🍻 when you've paid😁👌. So be ready👈
James Newsome
16:30 22 Jul 18
Just got some windows put in very please with the service they presented. Very honest, caring business.
Christine Jones
22:02 02 Jun 18
Great service I recommend them very professional, friendly, knowledgeable and fast. Looking forward to them replacing a few more windows in my home.😀👍
Faye Marshall
18:52 14 Apr 18
Great service and prices. Slack in offering delivery and located in a rough area
Brian Woods
16:47 25 Feb 18
I just had the windows in my home replaced. I couldn't be more pleased. The work was beautiful. The installer left my home and yard spotless. Yes, I paid 1/2 up front--but it was worth it. I paid $1,200 LESS than what two other companies wanted to charge me for the same quality windows. Further, Penny Window did it in 3 weeks time instead of the 4 to 6 weeks the other companies promised.
Bill K
02:33 10 Nov 16