About Us

Original Sash is a family business with a customer focus and a reputation as one of London’s leading timber window and door suppliers.

We have over 30 years’ experience in window and door manufacturing, including a great deal of experience working in conservation areas and in Grade II listed buildings, and have installed over 30,000 bespoke timber windows and doors across London and the South East.

Unlike many of our competitors we manufacture, sell and fit all of our windows, which allows us complete control of the process from start to finish.

We use quality timber from sustainable sources and we are well known for our attention to the smallest design and fitting details, thanks to our experienced fitters who work only for Original Sash.

Our complete new windows and doors comply with Document L Building Regulations and we are FENSA registered installers of windows.

As a customer focused business we will work with you, your builder or your architect from the initial specification stage through to final installation and fitting. And we will always ensure that the timing of our installation work is convenient to you.

We look forward to working with you.


Browse our extensive portfolio of window and door installations across London and the South East