How to Open Sash Windows?

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Welcome to Sash Window Refurbish

Experts in Sash Windows Repair & Restoration, Timber Windows & Timber Doors in east midlands

Why Trust Sash Window Refurbish?

Sash Windows Refurbish specializes in providing repair and restoration services for wooden windows and doors in the UK, as well as various types of carpentry. During the process of fulfilling orders, we utilize a range of tools and paints, including saws, sprays, primers, resins, and adhesives. With more than 20 years of experience in carpentry, we have tested and used various brands and types of work tools, making us well-equipped to offer helpful advice on selecting the right tools and paints for your needs. Read more ...

Mechanics of Sash Windows

To open sash windows effectively, it’s crucial to comprehend their mechanism. Sash windows consist of two movable panels, or sashes, that slide vertically within the frame. One sash is typically fixed while the other can be moved up or down. The key components include pulleys, cords, weights, and stops.

Opening Sash Windows from Inside

Opening sash windows from inside your home is a straightforward process. Start by locating the window stops on the inside frame; these are small strips that prevent the window from sliding down too far. Carefully lift the lower sash while supporting the weight to avoid sudden movements. Once the window is open, you can adjust the height by engaging with the sash cords.

Can Sash Windows Be Opened from Outside?

A common misconception is that sash windows can be easily manipulated from outside, leading to security concerns among homeowners. However, the design of sash windows, with internal cords and weights, makes it nearly impossible to open them from the outside without specialized tools. When properly maintained, sash windows provide a high level of security.

Introducing the Sash Window Jack

For enhanced security and peace of mind, consider investing in a sash window jack. This ingenious device fits into the window track, preventing the window from being forced open. Sash window jacks are discreet, easy to install, and provide an additional layer of protection against intruders.

Proper Maintenance for Smooth Operation

Regular maintenance is the key to ensuring smooth operation of sash windows. Clean the tracks and lubricate pulleys and cords to prevent friction. Check for any signs of wear and tear, such as frayed cords or damaged pulleys, and replace them promptly. Keeping your sash windows in top condition not only facilitates easy operation but also prolongs their lifespan.

Upgrading to Modern Convenience: Sash Window Alternatives

While traditional sash windows exude charm, modern advancements offer alternatives that combine aesthetics with convenience. Some contemporary sash windows are designed with counterbalance mechanisms, eliminating the need for weights and cords. These windows are easy to operate and maintain, making them a popular choice for homeowners seeking a blend of classic style and modern functionality.

About the author

Glen Ramsey, who presently holds the positions of customer support and content manager, is a cherished member of the Sash Window Refurbish team. He is in a unique position to provide advice on all questions pertaining to the renovation of historic windows because he has a wealth of experience in all elements of window renovation, dealing with clients regularly and assisting them in choosing the best window-related course of action. He oversees the creation of information for all of our platforms in his capacity as content manager, including web content and other materials. Glen has witnessed the whole gamut of Sash Window Refurbish's window restoration activities, from our work on significant listed Georgian homes to a wide variety of smaller-scale private residential projects.


My technician Andrew replaced all my sash windows that had rotten sills. Accessing the rotten sills was not an easy task. He explained to me what needed to be done in order to fix the problem. He is a great person and I’m happy that he was the one who did the job. He is reliable, tidy, friendly and very professional. I highly recommend him.



I hired Andrew and Alex a while back to repair my damaged sash windows. They were was very considerate and very patient as he did his job. A few days ago, I had another problem with one of my sash lock keys and I called him again to come and fix the problem. I’m very impressed that Liam responded quickly and he not only fixed the problem but he also gave me a spare key. What a great after sales service!

Alan W.


I’m very impressed with the new windows that Andrew installed and also the reconditioning job that he did on other sash windows. The quality of his work is by far more superior than what we got when we hired another company a few years back. We will certainly hire him again if any window work arises

Kelly (Sleaford)


Our decorator referred us to Andrew because some of the work needed a window expert. Andrew together with our decorator did a fantastic job. The work was done efficiently and to the highest standards. Andrew is understanding, committed and very professional. I recommend him without any hesitation.

Steaven Reader


Alex did a great job in fixing windows in our terraced house. The windows were broken, frames damaged and the wood was also rotten. Alex's job was high quality and he did it pretty fast. I was also very impressed that he was considerate of my son’s asthma condition and maintained cleanliness. Top work.



Andrew just recently replaced three sash windows in my Edwardian house. He also repaired and replaced some sills and draught proofed three windows. In addition to that, he also did some carpentry work. What I like the most about Liam is that he did a clean job. He is very professional and always updated me about the timescales and costs. He also did his job with minimal disruptions. I highly recommend him.

Cris M.