Restore. Preserve. Enhance.

At NSG Sash Windows, we specialise in the repair, restoration and installation of traditional sash windows throughout London. We believe original sash windows are an important part of a period property's character, and wherever possible our approach is to repair and restore rather than replace unnecessarily.

From draught-proofing, cords, weights and pulleys to timber repairs, glazing, refurbishment and complete sash-window installations, we provide a sympathetic service designed around the individual property. For period and heritage homes, we pay particular attention to proportions, traditional details and existing architectural features, helping to improve comfort, performance and security without losing the character of the original windows.

Our sash-window services include:
Sash Window Repairs • Restoration & Refurbishment • Timber Repairs • Sash Window Installation • Draught Proofing • Cords, Weights & Pulleys • Glazing • Locks & Furniture • Period Window Restoration • Conservation Work