A Trusted Replacement Window Company

We’ve been known as the trusted window replacement company for St. Louis & St. Charles Counties since 1953.

So, how may we help you today?

Windows

Doors

Siding

Gutters

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We provide the best everyday value on top brands 🙂

Combining unmatched performance with distinctive style for a perfect fit.

Lower the cost of your next big home improvement with our new financing. Learn more >

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

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What Our Customers Say

About us, our products, pricing and workmanship.

Energy Efficient Windows

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 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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Fresh Window and Door Posts

Dig in to learn all about windows, doors and more.

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A Homeowner’s Guide to Andersen 100 Series Windows

| Windows | No Comments
Are your energy bills increasing, yet your home is still not keeping a comfortable temperature; then it may be time for you to consider Anderson 100 Series windows. According to…
Window Replacement

Replacing Your Windows – A Guide To Help Homeowners Know When It’s Time

| Windows | No Comments
Replacing your windows seems like a simple concept, but they’re evolving with the times. Today, we even have smart windows, which transform into digital screens when needed. They also use…
andersen wood windows

The Benefits of Installing Wood Windows

| Windows | No Comments
Are you going to be installing some new windows in your home in the not-too-distant future? If you are, you're going to have several different window materials that you can…