Sash windows have become one of the most popular types of windows globally because of their beauty and simplicity. Their distinctive styling has made them instantly recognizable and highly practical. However, an array of things can damage these windows. Thankfully, most of these problems can be easy to fix. Let’s look at how to repair sash windows.

Purchase proper parts

One of the most common problems on a sash window is a broken sash cord. Over time, these cords can wear down. This can reduce their effectiveness or eventually break the cord. If this occurs, the window will become harder to open and close. While many people assume that this problem will be difficult to solve, this isn’t actually the case. The first step is to purchase the correct parts. You might want to consult with the manufacturer to see if they have stock replacements. Alternatively, you may be able to purchase them at a hardware store. Once you’ve got these parts, you can start repairing the window.

Insert link: Finding the appropriate repair parts for your sash window

Remove the sash cords

When learning how to repair sash windows, you will need to make sure that you have the right equipment. In this case, you will only need a screwdriver and a tack lifter. Initially, you should remove the casing around the upper window using a screwdriver. This should allow you to gently slide out the lower portion on the window. As you do this, use the tack lifter to grab the chains that connect the lower window with the upper window. There should be a cord on either side of the window. Cut these cords; you will want to replace them anyway. Before doing so, make sure that you secure the weight. This ensures that it will not fall and damage the frame. Remember to make sure that the old pulley sections aren’t blocked before installing the new cords. You may need to scrape old paint from these passages. You may also take advantage of this opportunity and add some oil to the pulleys.

Reassemble the window

Afterwards, you need to reassemble the window. Slide the new cord through the weights, then tie a stop knot at the end. This should prevent the rope from sliding back through. You should now be able to cut off any excess rope from the cords. Once you’ve done this, you can re-attach the window. It may take a little adjusting to make sure that you put it in the right place. You can also opt to re-paint the window to make it look more appealing. Once finished, the window should be able to slide up and down more easily.

Sash windows are one of the most popular types of windows available on the market. However, sash cords may require replacing from time to time. This will ensure that the window slides up and down easy. Thankfully, this is a simple task and we have discussed how to replace sash cords on your own. Use these newly acquired skills to repair your sash window and ensure that operates smoothly.

This article was written on behalf of Fix a Sash by Pieter Boyce. Pieter has an intense passion for English Architectural history and has been specialising in the conservation of original wooden windows and doors for decades. His exceptional knowledge of timber windows and doors, both listed or non-listed, is attributed to his hands-on approach to learning all aspects of the complete restoration of original features as well as having personally surveyed thousands of items throughout his long tenure as a head surveyor for one of the largest window and door restoration companies in the UK. He now runs a boutique wooden window and door consultancy and fervently champions the retention of original windows and doors. To learn more of Pieter’s services, visit his website at