How to Replace Metal Frame Windows


Replacing metal frame windows can save money on energy bills, eliminate broken existing windows and improve the appearance of a room or home exterior. Replacing metal frame windows is generally an easy task and new windows can last for decades if installed properly. Replacement metal windows typically are installed using the existing window frame.

Things You'll Need

  • Screwdriver
  • Hammer
  • Remove the sliding window from the frame. Partially open the window, then lift and pull out. Loosen screws on any sliders with a screwdriver that are preventing the window from sliding out. It may also be necessary to remove a small piece of rubber acting as a wedge to easily remove the sliding window.

  • Remove the screen window in the same manner. The screen window should come out easily.

  • Remove the fixed window. Unscrew and remove any screws holding the fixed window in place. Screws are generally found along the vertical bar in the center or the top and bottom. Remove the vertical bar. Tap the bar with a hammer to loosen if necessary. Once the bar is removed, the fixed window can be removed in the same way as the sliding window.

  • Install the replacement windows. Lift the fixed window into the slider and slide it to the end. Screw it to the frame to fasten. Secure the vertical bar. Install the screen window on the opposite side and then install the sliding window, securing it to the frame with screws as necessary.

Tips & Warnings

  • Follow manufacturer's instructions for window installation. Some windows have extra instructions. If you want to replace the sliding frame as well as the windows, you will have to remove any screws holding the frame in place as well. If the frame is sealed in the window opening with silicone, use a knife to cut away some of the silicone, then pull on the frame until it comes loose. Once the old window pieces are completely removed and you have cleaned up any extra debris, you can install a new metal slide frame.
  • If you are having difficulty removing or installing a window, do not try to force it. You may crack or break the window glass.

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  • Photo Credit house image by Greg Pickens from
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