New Window Install 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.

New window install without removing siding.

For the new windows they cut off the flange from the new window. 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. Insert replacement windows aren t the best option in my case due to the construction of the old aluminum window frames. The most important factor in determining whether existing siding will need to be removed for replacement window installation is the age and condition of the window.

We get it redoing both your siding and all the windows in your home is a huge investment. Proper installation of siding around a window requires lengths of j channel. Because we planned to remove the entire nail fin once the siding was cut out of the way we just bent them down to the sit flush with the window frame with a hammer. How to install new windows with wood siding.

To the edge of the window to about 1 past the outside seam. Caulk any major voids. With window tape cover up all seams. Everything you need to know about diy window installation.

If the window is still in relatively good condition and the frame sill and jambs have not rotted or deteriorated then you may be able to complete the installation without disturbing the siding. Rather than removing the siding installing the windows and re applying the siding over the flanges i am considering cutting the siding such that the opening is large enough to allow the windows to be secured directly to the framing then using 1 1 4 strips of siding over the flanges just as spacers and then applying 1 x 4 smart panel molding around the windows which would hide and overlap the strips. The average double hung window costs between 300 to 700 dollars to replace and that s just for one window. My question is how can i remove the old window without taking off the siding.

The newly installed window will need to be trimmed out with j channel or j molding before the siding can be reinstalled. If you want to fully replace with new construction windows you will have to deal with the siding. 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.