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

Double Pane Windows vs. Triple Pane Windows

double pane windows next to triple pane windows for comparison

Double Pane Windows vs. Triple Pane Windows

When it comes to home comfort and energy efficiency from your windows, the trick is in the panes. Many windows now are constructed with two or even three panes within the same window frame. In between each pane is a non-toxic, odorless gas that works to slow the flow of air, keeping air leakage and heat loss at a minimum. But which one is the right choice for your home? Does it really make a difference between double and triple pane? The answer is yes. Here’s why.


Ever seen fog develop on your windows on a winter’s night? This occurs when the warm air from inside meets with a cold window and cold exterior air. This can be unsightly, but it can also lead to issues of mold and mildew if unchecked. Double and triple-pane windows work to counteract this by slowing the flow of air from outside to the interior side of the glass. But with an extra barrier, triple pane windows are simply better at keeping window condensation at bay.

Gas Fillings

Both double and triple-pane windows use gas fillings to slow air flow between panes of glass. The gas is always odorless and non-toxic so it offers no threat to your home, even if the glass breaks. The most common gas fillings are argon and krypton gas. Krypton gas is more expensive, so most windows simply use argon glass or charge exorbitant costs for windows with krypton gas fillings. At XteriorPRO, we won’t limit you to either window, we offer both Krypton and Argon gas depending on what your preference is.  It’s not a universal benefit of triple pane windows, but it is something we offer for our triple pane windows.

Home Value

St. Louis winters can be rather intense, and in these climates, triple pane windows offer the best energy efficiency, keeping your home warm and draft free no matter how cold outside. This, in turn, will boost your home value. Home comfort and energy efficiency are major factors in this area, and homebuyers will be willing to pay more for windows that offer just that. Thus the extra investment of triple pane windows will eventually pay off.

Interested in triple pane new or replacement windows for your home? Contact XteriorPRO today for more information or to get started with a free estimate.