06/24/2026
Quick way to figure out how old your windows are:
Check for a manufacturer label or stamp (usually on the jamb liner or bottom of the sash). It often includes a date code or manufacturing year.
No label? Look at your home's build date. Original windows are usually the same age as the house.
Why does this matter? Knowing your window's age helps you identify the brand and model, which makes ordering the right replacement parts way easier!
📸 Pro tip: Take a photo of any labels before you start your project. You'll thank yourself later.