If you need to install a new window in a concrete wall cut a hole that s large enough to hold your new window.
How to install a new window in a concrete wall.
Install a new window that fits the space and caulk around the frame to waterproof it.
In a concrete wall without wood framing install the window framework by fastening it into the concrete wall with self tapping concrete screws.
How to install a window in a concrete wall.
Install window in the flashed opening and leave adequate space all around the window for insulation.
Then make a custom frame and push the window in place.
Windows are installed in cinder blocks in much the same way as they are installed in wood framed walls but they need to be held in place with concrete.
Use of a wood buck inside of the concrete opening allows for easier installation of exterior and interior trim and also ensures a square opening for the window installation.
Some preparations to the window opening can make the job much easier and leave the window prepared for interior and exterior finishing.
Replace any damaged areas before installing windows.
For a block wall installation fasten with rust resistant screws using a toe nail method through the jambs into the head and sill boards at each corner.
Make sure the window is plumb and level and adjust the shims if necessary.
Enlarging a basement window or putting a new window where there were only cinder blocks can bring natural light into a formerly dingy basement and transform it into a pleasant living area.
Center the new window in the opening supporting it with wood blocks and shims placed below the horizontal jambs.