SJB Sash Windows is a family-run business specialising in the manufacture and installation of traditional timber sash windows & doors, serving the London area since 2001. Our range of products and services are designed to improve energy efficiency whilst maintaining curb appeal & architectural integrity.

We specialise in the manufacturing, installing and servicing of sash windows & doors. You can count on our expert and experienced staff to provide a trustworthy service that will go beyond your expectations. Whether you need new sash windows or your existing windows repairing we have exactly what you need at prices you can afford.

At SJB Sash Windows we cover all stages of sash window ownership, from installing or reinstating new sash windows through to repairing and replacing existing wooden sash windows. Your new sash windows and box frames are bespoke and manufactured to order. They are installed by our own specialists and are fully guaranteed for your peace of mind.