Replacing Your Sash Cord: A Step-by-Step Guide

ByDavid Fenton
Sash Cord Replacement

As a homeowner, you’ve likely encountered a problem with your sash windows at some point. One of the most common issues is a broken sash cord, which can prevent your window from opening and closing smoothly. The good news is that sash cord replacement is a relatively simple and inexpensive repair, and with the right tools and a little patience, you can accomplish it yourself. In this step-by-step guide, we’ll walk you through the process of sash cord repair, from identifying the problem to reinstalling the window sashes.

Identifying the Problem:

The first step in addressing any window repair is to identify the problem. In the case of sash cord replacement, you’ll want to determine whether the issue is with the sash cord itself or another component of the sash window, such as the sash weight or pulley system.

To identify the problem, you’ll need to examine your window closely. If you notice fraying, breaks, or significant wear in the sash cord, it’s likely that a replacement is necessary. Additionally, if your window is difficult to open or close, or if it won’t stay open on its own, this may also indicate a problem with the sash cord.

Gather the Necessary Tools and Materials:

Before you begin your sash cord repair, you’ll need to gather the necessary tools and materials. Here’s a list of what you’ll need:

  • Screwdriver
  • Utility knife
  • Pry bar
  • Pliers
  • Hammer
  • Replacement sash cord (preferably waxed cotton or nylon)
  • Sash weights (if necessary)
  • Paint scraper (optional)
  • Safety glasses and gloves

Removing the Window Sashes:

Once you’ve identified the problem and gathered your tools, it’s time to remove the window sashes. This process will vary slightly depending on the type of sash window you have, but generally, you’ll follow these steps:

  • Remove any window hardware, such as locks or latches, using a screwdriver.
  • Carefully pry off the interior window stops (the thin strips of wood that hold the lower sash in place) using a pry bar or utility knife. Be gentle, as you’ll need to reinstall these later.
  • Lift the lower sash out of the window frame, taking care not to damage the glass.
  • Remove the parting beads (the vertical strips of wood that separate the upper and lower sashes) by carefully prying them away from the frame.
  • Slide the upper sash down and lift it out of the frame.

Replacing the Sash Cord:

With the sashes removed, you can now access the sash cord and pulley system. Follow these steps to replace the sash cord:

  • Remove the old sash cords from the sashes and pulleys. You may need to use pliers to grip the cord and pull it free.
  • Cut a new length of sash cord that is approximately twice the height of the window, plus an additional 12 inches for knotting and attaching the weight.
  • Feed the new sash cord over the sash pulley and into the weight pocket.
  • Attach the sash weight to the end of the cord by tying a secure knot. If necessary, replace the sash weight with a new one.
  • Thread the other end of the sash cord through the hole in the side of the sash and secure it with a knot.
  • Repeat this process for the other sash cord and sash weight.

Reinstalling the Sashes and Final Touches:

After replacing the sash cords and reattaching the sash weights, it’s time to reinstall the window sashes and finish the project. Follow these steps:

  • Slide the upper sash back into the window frame, making sure the sash cord is properly positioned in the pulley system.
  • Reinstall the parting beads by gently tapping them back into place with a hammer.
  • Place the lower sash back into the window frame, ensuring the sash cord is properly positioned in the pulley system.
  • Reattach the interior window stops by gently tapping them back into place with a hammer.
  • Reinstall any window hardware, such as locks or latches.
  • Test the window to ensure it opens and closes smoothly and stays open on its own.

Conclusion:

With a bit of time and effort, sash cord replacement is a manageable DIY project that can save you money on window repair costs. By following this step-by-step guide, you’ll be able to successfully replace your sash cords and enjoy smooth, functional sash windows once again. Remember, regular maintenance and inspection of your sash windows can help prevent future issues and prolong the life of your windows.