That’s a good question — and the answer is, it depends. If you’re upgrading from an old-fashioned, inefficient single-hung window to an energy-efficient newer model, your window frame might take up more room, leaving less room for blinds or other window treatments. And if you’re changing frame size, your old blinds won’t cover the new frame space the same way. When in doubt, call our team; we can determine if your old blinds will fit your new windows.