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How To Repair Double Hung Sash Windows In Reading

If you have double hung sash windows in your home, you may be familiar with some of the common issues that they can encounter over time. From sticking sashes to broken cords, there are a variety of problems that can arise with these types of windows. However, with the right knowledge and tools, it is often possible to repair these issues yourself, without needing to hire a professional.

In this guide, we will provide an overview of some of the most common problems that you may encounter with your double hung sash windows, as well as step-by-step instructions for how to repair them. Whether you are an experienced DIYer or a complete novice, our guide will help you get your windows back in working order.

Sash Windows Berkshire Are A Sash Window Repair Company In Reading

Before we dive into the details of how to repair your double hung sash windows, it is worth mentioning that Sash Windows Berkshire is a sash window repair company based in Reading. Our team of experts has years of experience repairing sash windows of all types, and we offer a range of services to keep your windows in top condition.

Whether you need a simple repair, a full restoration, or a replacement window, we can help. We offer competitive prices, high-quality workmanship, and excellent customer service, so you can trust us to take care of your windows.

Common Issues with Double Hung Sash Windows

As we mentioned earlier, there are a variety of problems that can occur with double hung sash windows. Here are some of the most common issues you may encounter:

Sticking Sashes

If your sashes are difficult to open or close, they may be sticking. This can be caused by a variety of factors, such as paint buildup, warping of the sash, or problems with the tracks.

Broken Cords

The cords that hold the sash in place can become worn or break over time, which can prevent the window from opening or closing properly.

Rotted Wood

If your sashes are made of wood, they can become rotten over time due to exposure to moisture. This can weaken the window frame and make it less secure.

How to Repair Double Hung Sash Windows

Now that we've covered some of the most common issues with double hung sash windows, let's take a look at how to repair them. Here are step-by-step instructions for some of the most common repairs:

Replace Broken Cords

  1. Remove the sash from the window frame by prying off the interior stop with a pry bar, then lifting the sash out of the frame.
  2. Place the sash in a secure location, such as a workbench, and remove any broken cords or weights from the sash.
  3. Cut a new cord to the proper length, then tie it to the weight using a simple knot. Make sure the knot is tight and the cord is secured to the weight.
  4. Insert the weight and cord back into the sash, then feed the cord through the pulley at the top of the frame.
  5. Reinstall the sash in the frame and test it to make sure it moves smoothly.

Replace Rotted Wood

  1. Remove the sash from the window frame as described in the previous section.
  2. Use a flathead screwdriver to remove any old paint or putty from the sash and frame.
  3. Cut a piece of new wood to the proper size and shape, then use carpenter's glue to attach it to the sash or frame.
  4. Use clamps or weights to hold the new wood in place until the glue dries.
  5. Sand the repaired area smooth, then apply new paint or putty as needed.

Freeing Sticking Sashes

  1. Clean any buildup from the tracks using a putty knife or solvent.
  2. Apply a light coat of wax or silicone spray to the tracks.
  3. If the sash is still sticking, check to make sure it is not warped. If it is, you may need to replace the sash or have it repaired by a professional.


Double hung sash windows can be a beautiful and functional addition to any home, but they require regular maintenance to keep them in good condition. By following the tips and instructions provided in this guide, you can keep your windows working properly and avoid the need for costly repairs.

If you do run into problems with your windows that you are unable to fix yourself, do not hesitate to contact Sash Windows Berkshire. Our team of experts can diagnose and repair any issues with your windows, ensuring that they continue to provide you with years of beauty and functionality.

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