Install New Windows Without Removing Siding

It s my understanding that new construction style windows can have the nailing fins removed and installed without removing the surrounding siding and j channel.

Install new windows without removing siding.

Insert replacement windows aren t the best option in my case due to the construction of the old aluminum window frames. Sometimes there are little pieces of wood between the window and the wooden studs that hold the window tight. Caulk any major voids. If you want to fully replace with new construction windows you will have to deal with the siding.

1 full frame or prime replacement window where you tear out the entire existing window frames and all down to the rough stud opening and insert a whole new window with exterior frame and header and sill and all into the rough opening totally replacing the existing unit except sometimes reusing the interior trim to retain a match with other windows. Capping a window correctly is important as this aluminum or vinyl framing helps direct water away from the frame and the interior of your walls. I had windows done for me once professionally years ago and somehow they cut the old flange from the old window and were able to remove the window leaving the flange and without disturbing the siding. Attach new pieces with screws and wood glue.

Fill any holes with wood filler and make sure you have solid wood where you ll screw the new window into the frame for stability. Replacing both at the same time allows your contractor to set the windows and then install the siding which can end up saving you money in the long run as well. Nail into place either new siding ripped to size with your table saw or the existing siding if not overly damaged and install over the new window s flange to the edge of the existing siding. Use a hammer or a drill to take out any nails or screws that are holding the window in place.

To the edge of the window to about 1 past the outside seam. With window tape cover up all seams. If you find damaged or rotten wood remove it and cut new wood to replace it. Replacement windows fit into the existing opening and do not require removing any siding.

For the new windows they cut off the flange from the new window. The pieces of siding being installed adjacent to the new window should be held in place marked and then cut allowing 1 4 inch of space for expansion. Installing siding once it s been cut to.