Usually there are three options to choose from when replacing existing windows:
1. Full Frame Replacement
2. Pocket Solution
3. Tilt Sash Replacement
Full frame replacement involves removing and installing a whole new window and frame. You must take out the existing window and trim everything down to the studs.
This first way works well if you don’t have to worry about trim or if the already installed unites are a different shape or size.
The second way, the pocket solution, is the least intrusive and a much more economical method of replacing windows. The benefits to you are:
1. The millwork doesn’t need to be replaced
2. It won’t disturb interior trim or external siding
3. You will be able to maintain your existing window treatments
4. It is more economical since the surrounding window doesn’t need to be replaced or repainted.
Tilt sash replacements won’t disturb the architecture of the structure, existing interior trim, or exterior siding.
These windows are built to fit existing window frames, and kits are available in a wide range of sizes, options and accessories.