How to Repair a Hole in the Stucco Where an Old Window Was

Measure the height and width of the opening where the window was. Cut two pieces of 2-by-4 lumber to the height measurement and two pieces of 2-by-4 lumber to the width measurement, minus 3 inches.

Assemble the four pieces of 2-by-4 lumber that you cut in Step 1 into a frame with exterior dimensions that match the size of the hole in the wall. Drive 3-inch-long screws through the faces of the vertical members and into the ends of the horizontal members to form a rectangle.

Place the frame into the wall opening and position it so that its outside face is inset 1 inch from the exterior face of the wall. Secure the frame by driving 3-inch-long screws through it and into the existing studs in the wall.

Cut a piece of 3/4-inch-thick plywood to the dimensions of the hole in the wall. Place the piece of plywood into the hole and screw it onto the frame that you installed, using 1 1/2-inch-long screws.

Cut a piece of wire mesh to the same size as the piece of plywood. Attach the wire mesh to the plywood by nailing it on with roofing nails.

Mix up a batch of stucco and spread it over the wire mesh. Cover the entire area and try to match the pattern of the surrounding stucco.