There are typically three options when choosing to replace your existing windows: <br /> <br />1. Full Frame Replacement <br />2. Pocket Soultion <br />3. Tilt Sash Replacement <br /> <br />The full frame replacement is exactly what it sounds like. This involves replacing the whole window and frame, taking out the existing window and trim down to the studs. <br /> <br />This solution works well when you don't need to worry about the trim or when you are replacing the existing units with a different shape or size. <br /> <br />The next option, the pocket solution, is one of the least invasive and economical methods of replacing existing windows. The benefits of this solution include: <br />1. The millwork doesn't need to be replaced <br />2. It won't disturb interior trim or external siding <br />3. You will be able to maintain your existing window treatments <br />4. It is more economical since the surrounding window doesn't need to be replaced or repainted. <br /> <br />Tilt sash replacements won't disturb the architecture of the structure, existing interior trim, or exterior siding. <br /> <br />These windows are built to fit existing window frames, and kits are available in a wide range of sizes, options and accessories. <br /> <br />Weathershield Reviews <br />Weather shield Reviews