Installing a basement window in concrete block wall on april 15 2020 by amik how to install basement windows with cinder block walls vs poured how to waterproof a cinderblock wall basement window replacement learn.
How to install a window in a concrete block wall.
Measure the concrete opening and cut a 2x4 to fit across the lower sill.
In this video i demonstrate how i replaced old aluminum windows in this cement foundation with new vinyl sliding windows.
Use wood shims and a level to make sure this piece is level.
Score the outside surface of the cinder blocks with a circular saw fitted with a masonry blade then knock the cinder blocks out of the window opening with a small sledgehammer.
Step 2 fit the window into the rough opening.
Anchor this 2x4 to the concrete with screws or anchors.
Cut a hole in the cinder block wall if you are enlarging an existing wall or putting in a new window.
Flash the entire wood casing using the proper primer.
This will give you a wood buck to install the window inside of.
Frame the bottom shelf with an angle so that the water striking the window will run away from it.
Follow the same steps for the other 3 sides of the concrete opening.
Go step by step for adding a new construction window.
Install window in the flashed opening and leave adequate space all around the window for insulation.
Build a wood casing screwed to the concrete opening.
Discover how it differs from frame construction.