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Sash Windows Berkshire: How to Repair Sash Cords in Windows in Reading

Sash windows are a popular choice in Reading, Berkshire, and the surrounding South East England area. They are known for their aesthetic appeal, energy efficiency, and durability. However, like any window, the sash cords in sash windows can wear out over time and need to be repaired.

If you are experiencing difficulty opening or closing your sash windows, it may be time to repair the sash cords. In this guide, we will walk you through the process of repairing sash cords in windows.

What are Sash Windows?

Sash windows are a type of window that features two sashes that slide up and down vertically within the frame. This design allows for easy ventilation and makes them ideal for areas with limited space, such as urban environments.

Sash windows consist of four main parts: the sash, the weights, the bead, and the cord. The sash is the movable part of the window that slides up and down. The weights are typically made of cast iron and balance the sash. The bead is a strip of wood that holds the glass in place. And the cord connects the sash to the weights.

Why Repair Sash Cords in Windows?

Sash cords are an essential component of sash windows. Over time, however, they can wear out and need to be replaced. When sash cords break or become slack, it can make it difficult to open or close the window. This can cause air leaks, which can result in higher energy bills.

Repairing sash cords in windows is a cost-effective way to improve the efficiency and durability of your windows. It can also improve the appearance of your windows and increase the value of your home.

How to Repair Sash Cords in Windows

Repairing sash cords in windows may seem like a daunting task, but it is a relatively simple process that can be completed in a few hours.

Tools and Materials

Before you begin, you will need the following tools and materials:

  • Ladder
  • Screwdriver
  • Pliers
  • Hammer
  • Chisel
  • Glazing putty
  • Pointing trowel
  • Sandpaper
  • Sash cord
  • Weights

Step-by-Step Guide to Repairing Sash Cords in Windows

  1. Remove the Sash

The first step in repairing sash cords in windows is to remove the sash. Begin by opening the window and removing any pegs or locks that may be holding the sash in place. Then, carefully slide the sash up and out of the frame.

  1. Remove the Parting Bead

Next, remove the parting bead. The parting bead is a small strip of wood that separates the sash from the frame. Use a screwdriver or chisel to remove the bead, being careful not to damage the window frame.

  1. Remove the Lower Sash

Once the parting bead is removed, you can remove the lower sash. Carefully lift the sash and take note of the sash cord's location and the weight's position within the frame.

  1. Remove the Sash Cord

With the sash removed, you can now remove the sash cord. Use pliers to grab the cord and pull it out of the frame. Be sure to remove any remaining cord remnants, as they can cause the sash to become stuck.

  1. Install the New Sash Cord

With the old cord removed, it's time to install the new sash cord. Attach one end of the new cord to the sash and thread it through the pulley or weight pocket towards the top of the frame. Tie the other end to the weight and pull it to the top of the frame. Make sure the weight is secure and that the sash slides up and down smoothly.

  1. Reinstall the Sash

With the new cord installed, you can now reinstall the sash. Slide the sash back into the frame and replace any pegs or locks. Check to make sure the sash operates smoothly.

  1. Install the Parting Bead

With the sash installed, you can now replace the parting bead. Apply glazing putty along the edge of the bead and press it back into place. Use a pointing trowel to smooth out the putty.

  1. Test the Window

Finally, test the window to make sure it opens and closes smoothly. If necessary, adjust the weight or cord tension to ensure the sash operates smoothly.


Repairing sash cords in windows is a straightforward process that can be completed in a few hours. While it may seem daunting at first, following these steps will help you repair your sash windows and increase the energy efficiency and value of your home.

At Sash Windows Berkshire, we pride ourselves on providing the highest quality sash window repairs and replacements in Reading, Berkshire, and the surrounding South East England area. If you need help repairing sash cords in your windows, give us a call at 0118 449 2798, and we'll be happy to assist you. You can also visit our website at for more information.

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