How to Rebuild a Window

By Gene and Katie Hamilton

Tools Required
  • Utility knife
  • Measuring tape
  • Hammer
  • Pry bar
  • Screwdriver
  • Hacksaw
  • Paint scraper
  • Bevel guage
Materials Required
  • Replacement channels
  • Scrap fiberglass insulation
  • Nails or screws

Before You Begin

What follows is the instructions to rebuild a window. Don't want to do the job? Click here to get to Home Advisor, a free referral service that connects homeowners with local prescreened contractors.

  • Step 1 : Remove the sashes

    Remove the sashes

    Use a pry bar to remove the parting bead that holds the sashes in place.

    Use a pry bar

    If the window has layers of paint you may need a wide putty knife and hammer to separate the parting bead from the window frame. Carefully remove the two sashes and store them in a safe place.

  • Step 2 : Clean up the window frame

    Clean up the window frame

    Scrape off any loose paint and sand the surface smooth. Cut the sash cord and let the sash weight pull them through. Back out the screw or nail at the top of the sash-weight door. Then remove the door and take out the sash weights.

    Remove loose paint

    Remove the screws that hold the sash weight pulleys and pry the pulleys from the jamb using a screwdriver. Fill the holes in the weight cavity with scraps of fiberglass insulation.

  • Step 3 : Scrape the window frame

    Scrape off any loose paint or rough surfaces so the surface of the window jamb is smooth.

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