Things You'll Need
Replacing the screen in your Andersen window is not complicated. Andersen windows come in four different styles -- double hung, awning, gliding, or casement. The double hung and gliding windows have two window sashes. In the double hung window, one sash moves up and down, while in the gliding window, one sash moves back and forth. A casement window and awning have one window panel. The casement window panel has hinges on its side and the awning has hinges on its top . You can order replacement screens for any of these windows online from Andersen. However, your local hardware store also has window screens that you can use.
Open your Andersen window as wide as it goes. If your window has two sashes, this means lifting or sliding one of the slashes all the way open. If you have a casement or awning window, crank the window panel open as far as possible with the spinning knob handle.
Grasp the screen's bottom edge and lift up. Pull the bottom edge towards you. Lower the edge slowly as you pull the screen out of the window opening. Lay the screen on a hard, flat surface, such as a table or floor, with the grooved side up.
Insert a utility knife's tip into the groove and remove the thin, black spline. This spline is what is holding the screen on the window. Pull the spline out from the groove around the entire window.
Remove the old screen from the window and set the window aside. Unroll the new screen on the hard, flat surface. Lay the window on top of the new screen. Use a utility knife to cut the screen about 1/2-inch past the window's edges. The cut does not need to be perfectly straight.
Flip the window over so the groove side is facing up, if necessary. Lay the new screen over the window. Hang the new screen over the window's edges 1/2-inch all the way around.
Cut a 45-degree angle into each of the new screen's four corners using scissors. Stop cutting once the cut reaches the groove's corner.
Place a piece of spline into the groove. Start the spline in one corner. Push the spline down into the groove using a spline roller. A spline roller looks like a pizza cutter. Roll it along the groove, forcing the spline into the groove. Use scissors to cut the spline once you reach the opposite corner. Repeat on the three remaining sides.
Push the spline firmly into each corner using a flat-head screwdriver. Use a utility knife to cut off the screen extending past the groove. Use the groove's outer edge as a guide when making the cut.
Place the screen's top edge into the window opening. Slide the screen up as far as it can go, then push the bottom edge in.
Order screens online from Andersen that are already mounted in the frame, if you wish.