Sash Windows

Box Sash Windows London
Box Sash Window in London


Original Sash windows are fitted by our specialist, FENSA registered installers. Employed directly by Original Sash, they are all skilled at timber sash installation.

The installation schedule is agreed in advance with the homeowner and our teams work quickly and tidily, ensuring your home’s security isn’t compromised during the day or overnight.

Box Sash Windows Manufacturers London


Original Sash is a family business with a customer focus and a reputation as leading sash window providers across London and the South East.

With over 30 years’ experience in window manufacturing and over 30,000 windows installed, we are proud of what our customers have to say about the quality of our windows and workmanship.


Can you match the style of my existing windows?

I live in a listed building and / or conservation area, are you able to work on my windows?

How do I get an estimate?