The wooden frame is also called a jamb while a metal frame is also called a buck. If the metal frame isn’t rusted, you can typically leave it in place and replace just the window pieces.
If you didn’t take the frame out, you can simply measure the size of the window. If you can’t get an exact size, order a slightly smaller window that you can fill in with mortar.
If you don’t want to chip away mortar ridges, consider buying a window that’s smaller and won’t need to be installed over the ridge.
If you’re screwing the window into concrete, you’ll have to screw double-threaded concrete screws using a hammer drill. Check to see if your replacement window came with screw cover plugs and put them on if so.
Mortar Mortar and brick or stone Caulk for the sides or top of the frame Urethane spray foam for under the will Custom-cut pipe insulation
Read the mortar or caulk package to determine how long it needs to dry. Depending on the product, it may take a few hours to a few days to dry.
Once the primer is dry, decide if you want to paint the wooden frame to match your home’s trim.
The bottom of the window can’t be more than 44 in (1. 1 m) from the floor. This ensures that the window is easy to use as an emergency entrance or exit.
Make the outline 3 1/2 in (8 cm) wider and 1 3/4 in (4 cm) higher to account for the wooden frame. Obstacles for installation include buried utilities, plants growing on the exterior, wiring for the house, and ductwork. If you aren’t sure if you have buried utilities or wiring, call your utility company before starting the project.
If the joists aren’t perpendicular to the window wall or the window will be less than 48 in (1. 2 m) wide, you can skip this step.
The plastic will contain the dust and debris from cutting which will make clean up easier.
Use a level to ensure that you’re marking the window accurately. Use the measuring lines as guides when you drill.
If the saw is making too much dust as it cuts the concrete, wet the blade.
At this point you can check to ensure that the rough frame and window will fit the opening you just made.
The newspapers will prevent the concrete from falling down through the blocks. The plastic sheeting will prevent the water from the concrete from warping the window frame sill.
The frame sides will support the header.
If you want the screws to be flush to the frame, countersink them so they don’t extend past the frame. If the gaps are wider than 1/4 in (6 mm), install a foam backer rod into the gap. Then seal with the caulking.
Check your specific nailing fin to see if it’s supposed to be nailed in place instead screwed in place.
It may take longer for your window to set if your basement is very damp or humid.
