How To Make Hole Bigger Concrete Wall For A Window

Allow the foam to cure for at least one hour before trimming the excess.

How to make hole bigger concrete wall for a window.

Once the concrete had dried at least 24 hours later i removed the forms and cut the wire as close as possible to the concrete. Start at the top of the opening and cut carefully along the lines you made on the wall. Hung drills on walls manholes floors about any config you can think of. Next i caulked the outside of the window cutting down the shims if needed with a razor and adding spray foam to some areas of the inside.

Take care not to damage the window with excessive shim pressure. Measure and cut each stud for a tight fit. If the window is less than 6 inches smaller on all four sides cut two by fours to fit the opening. I ve core drilled hundreds of holes.

It seems like in a lot of these windows that were cut in concrete the top left and the top right corner edges start to develop cracks. Measure the size of your window so you know how large of a well you need. Back from the concrete wall. I have noticed that one of the windows on the side see side view has a crack going from top right corner edge to the top of cement foundation crack length is about 4 5 inches.

Lower the window into the framed opening inserting the bottom window edge first then tipping in the top. Stack them on top of each other to make the opening smaller. Place it 3 ft. Line up the blade of a concrete saw over the marks on one side of the wall.

Apply expanding foam to the window frame gap created by the shims. They will show up punch those hole in and hour clean up the mess charge you 100 00 or so and everyone is happy. Measure the height and width of your window with a tape measure so you know the dimensions. Erect a temporary 2x4 support wall if the joists are perpendicular to the wall you ll be cutting.

Add 8 inches 20 cm to the height and 6 inches 15 cm to the width measurement you took so the well can fit around the outside of the window. Shim the window from both the interior and exterior sides until it is level square and flush with the exterior side of the basement wall.