How to Replace Windows in a Brick and Steel Frame

Remove the Old Window

• 1

  Open the window and locate the sash stops, which are thin strips of wood or metal that sit along the frame sides and hold the window to the frame.

• 2

  Cut through the paint along the edge with a utility knife and then detach the stop using a pry bar to remove the nails. If the strip is metal, remove the screws using a screwdriver.

• 3

  Look at the side of the window frame to determine if a cord is present. If so, cut it using a utility knife or shears. Slide the lower sash back down and pull it out of the frame.

• 4

  Look at the side of the window frame where the lower sash previously covered. You will see a thin center strip of wood called the parting sash that sits in between the upper and lower window panels. Pry this sash off using the pry bar as well. Then remove the one on the opposite it side of the widow frame.

• 5

  Pull the top sash down and cut the cord along the sides, if applicable. Pull the top sash out of the frame.

Install the New Window

• 6

  Examine the perimeter of the window opening to determine if old caulk or sealant remains in place. If so, remove it using a hammer and chisel until you have a clean window opening.

• 7

  Locate the sill adapter strip that comes with the replacement window and snap into the groove at the bottom of the window.

• 8

  Pick up the window and insert it into the wall opening from the interior of the home. The sill adapter should face the exterior or the home.

• 9

  Walk outside of the home while another person holds the window in place. Insert a 1/4-inch bit into a drill and create a hole at the lower left and right corner of the sill adapter. These holes, approximately 1 inch from the sides, allow excess moisture to drain out and prevent condensation buildup.

• 10

  Pull the window out of the opening and apply a 1/2-inch bead of silicone sealant around the entire perimeter of the window frame opening.

• 11

  Place the window back into the hole and look at the sides to locate the screw holes. Insert a wooden shim between the window and the frame until it is straight, aligning the shims over the screw holes.

• 12

  Insert the provided screws through the window frame using a power drill until it extends through the shims and the window frame. Repeat the process on all remaining screw holes locations. Cut off the excess shim wood using a utility knife.

• 13

  Seal around the entire frame on the exterior of the house using a 1/4-inch bead of silicone caulk.

• 14

  Seal the side gaps inside of the home using expandable spray foam and filling the gaps by half. Wait until the foam expands and then cut the excess off using a utility knife.

• 15

  Reinstall the sash stops around the inside perimeter of the window opening using finishing nails and a hammer, spacing the nails four to five inches apart.