Dual Pane / Double Pane Window Glass Facts

Dual pane windows, also known as double pane, insulated, or thermal pane windows, are an excellent investment for your home. These windows feature two panes of glass separated by a spacer filled with air, creating a barrier that effectively blocks heat and cold. This leads to reduced energy costs and minimized noise, making them for those living in bustling areas. In fact, upgrading from single pane windows can provide energy savings of up to 24 percent in cold climates during winter and 18 percent in hot climates during summer.

What is the average cost for a double pane glass replacement?

Replacements can range between $250 and into the 1,000's. The price varies due to square footage, type of glass, thickness of glass, type of low-e, and whether the glass needs to be tempered safety glass or annealed glass.

Signs that your double pane glass needs to be replaced

If you notice condensation or discoloration between the of your double-pane windows, it’s a clear indication that it’s time a replacement. This issue typically arises from a failed or broken seal between the panels. Properly functioning dual-pane windows should remain clear, allowing you to through them seamlessly while benefiting from enhanced insulation. Don't wait too long address these signs, as they can affect your home's energy efficiency.

How to tell if your window has single pane or double pane glass

Are you considering replacing the glass in your windows and unsure whether you have single or double pane? Identifying the type of glass is quite simple. First, check the outside edge of your window where the glass meets the frame; double pane windows will have a visible divider in the center, which can be silver, grey, or black. If you don’t see a divider, you likely have single pane windows. Additionally, if your windows were installed before 1980, they are most likely single pane.

Can you replace single pane glass in a double pane glass unit?

It's crucial to note that replacing a single pane in a double pane window is not feasible. Double-pane windows are designed to function as a single unit, with both panes of glass and the seal together to provide insulation. The inclusion of argon gas also improves their energy efficiency.

Can you put a single pane glass into a double pane window frame?

No. When you need to replace a double pane glass unit you cannot remove the glass unit and replace it with one single pane piece of glass because the frame was manufactured for the thickness of the double pane glass unit and single pane glass would not fit properly.