bespoke sash windows


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

We specialise in manufacturing, fitting and servicing sash windows. 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 fitting / installing (or reinstating) new sash windows through to repairing and replacing existing wooden sash windows. All our new sash windows and box frames are manufactured to order and installed by our own specialists and our work is fully guaranteed for your peace of mind.

Bespoke Front Doors In London By SJB



We’ve mastered our craft over many years of manufacturing & installing a wide range of Sash, Casement, and Doors into a wide variety of homes.

Windows Installed
Doors Installed
Homes Served
Years Of Experience


Each quotation we supply is tailored to our customer’s individual requirements. The replacement windows are bespoke built in order to ensure an authentic reproduction.

Being a family company with a wealth of experience, we believe we can provide our customers with a high quality yet affordable solution for upgrading your timber sash windows.

At SJB Sash Windows our highest priority is satisfied customers. You are important to us and you can expect us to go the extra mile for your business. Superior customer service is the hallmark of SJB Sash Windows. We are proud to serve you and work hard to earn your business.

At SJB Sash Windows our goal is to provide you with a courteous, expedient, professional service of the highest calibre. Before any job commences, we are of course happy to answer any questions you may have about our company or our services.

We offer the highest quality of product and services on the market today. We provide a superior service to our customers and have pride in assisting them achieve their goals. Our years of experience and commitment to excellence have earned us the reputation as the best sash window specialist in the area.


  • Family run business
  • Bespoke, hand-crafted timber sashes
  • Constructed using the original style and design to fit your home
  • Low maintenance and easy to look after
  • Reduce heat loss
  • Effective double-glazing – Multiple Options available
  • Fully Draught Proofed
  • Great Value
  • Free Customer Quotation