Sliding Sash Windows

Both our box and spiral balance sliding sash windows can be single, double or even triple-glazed. For customers living in conservation areas or in listed properties who want to have the best thermal performance, we can offer vacuum glazing, which can perform as well as triple glazing but is as thin as a single piece of glass. Alternatively, we offer narrow double-glazed units for period properties. If you choose our historic range, glass can be fitted using a modern-day, high-performance putty alternative, which makes them ideal for listed properties if required.

Sliding sash windows can cost more than casement windows, but you can keep the cost down by choosing spiral balance sash windows, however, the investment is always worth it. Sliding sash windows are highly sought after, and ours will last at least twice as long as uPVC alternatives.

We also offer the Tilting Spiral Balance design, which enables the window to tilt inwards to allow cleaning from the inside. These are great for those hard-to-reach windows.

If our traditional sliding sash window (vertical sliding sash window) does not meet your needs, we also offer the Yorkshire Sash, (horizontal sash window). Whichever option you go for, our attention to detail is second to none.

View our designs and contact us to discuss your ideas further.

At George Barnsdale, we prioritise your safety and security while maintaining the timelessness of our sliding sash bay windows. Each window is designed with advanced security features, including multipoint locking systems, reinforced timber frames, and quality hardware. 

These elements work together to provide resistance against forced entry, giving you peace of mind. Our windows also are crafted to meet modern security standards without compromising their traditional charm.

Getting a quote for sliding sash bay windows with George Barnsdale is simple and hassle-free. Our dedicated team is here to guide you every step of the way. Whether you prefer to reach out by phone, email, or through our online contact form, we’re ready to discuss your project in detail. 

Share your specific requirements, including design preferences, dimensions, and any additional features you’re looking for, and our experts will provide tailored advice to help you make the best decision. Once we understand your needs, we’ll prepare a transparent quote that outlines the options available to you.

Yes, sliding sash bay windows can be installed in listed and heritage properties, and they are an excellent choice for maintaining the traditional character of such buildings. We understand the importance of adhering to strict conservation requirements while ensuring the aesthetic of historic properties is preserved. 

Our timber sliding sash bay windows are designed to replicate the authentic details of period architecture, such as slim sightlines, traditional joints, and period-accurate glazing bars.