5988 Mid Rivers Mall Drive #239. St. Peters, MO 63304

St. Peters Windows

Triple Pane Replacement Windows For St. Peters

Double Pane Windows Are “Pretty Good.”
But “Pretty Good” Isn’t Good Enough For Us.

We’re not your typical St. Peters window company at Window Depot USA of St. Louis (a division of XteriorPRO). Unlike other window companies, we don’t offer different “levels” of windows at different prices points. 

We offer ONE kind of window—premium triple pane, “fully loaded” with all the bells and whistles. 

We could offer double pane windows. We could offer windows that come with “good” instead of “great” features. But we choose not to. 

This is because we’re for the kind of homeowner who is ultra-selective about quality. The kind of homeowner who demands the best, without exception. The kind of homeowner who won’t settle for anything other than premium energy efficiency, curb appeal, and performance from their windows.

Here is a closer look at our windows-replacement services for St. Peters…

The Most Energy Efficient Windows

Our triple pane windows come with an industry-leading U-Factor that ENERGY STAR recognizes with its Most Efficient award. There isn’t one specific reason our windows are the most efficient, but a combination of components working together as a whole.

For example, our windows utilize Krypton gas between the panes instead of the much more common Argon gas. Krypton is a much better insulator, so it gives our windows the edge over others. You’ll also find that our windows come with other features like state-of-the-art weather stripping and foam-filled frames to further enhance efficiency.

View our Why Triple Pane page for in-depth details about triple pane energy efficiency.

Unparalleled Installation Techniques

We’ve developed a number of special window-installation techniques that ensure the tightest, most airproof fit. This includes using superior insulation around the frame, applying stronger caulk than our competitors, and much more. 

We also have the most talented window installers in St. Peters because we pay almost double what many window companies do. We do this because we not only want the best people for the job, but we want them to be able to slow down and take their time to do the installation exactly right.

A TRUE Lifetime Warranty

When it comes to our installation, we “walk the talk” with a genuine Lifetime Workmanship Warranty. If an installation-related problem EVER occurs with your windows, your cost for us to fix it is always zero.

No fine print. No loopholes. No exclusions. No prorating. Just pure protection.

Get Your Window Quote In St. Peters

Our window inspections and quotes for St. Peters are free, comprehensive, and straightforward. You’ll receive the honest information you need, and then a no-nonsense price for our services.

To schedule your quote, contact us now. We would be honored to hear from you.

What Our Customers Are Saying…

“I had four estimates. Window Depot USA was the best price of the four. Great salesperson. The service and follow up were very professional. -Eugene St. Peters, MO 63376

Read 100 Reviews Here