Original Windows Logo

Original Windows

Preserving, Conserving, Restoring


Double Glazed Sash Windows North London – Original Windows

Renovation is our installation service that meets the need for replacement Georgian, Victorian and Edwardian period box sash windows. The service includes an assessment of the important and historic details to your existing windows and their faithful or close reproduction. Options include single or double glazing with the thermal performance to meet current demands for domestic energy efficiency. We renovate box sash window throughout North London and Islington.

Operating in Islington

Our renovation service aims to install elegant period box sash windows to original design in Georgian, Victorian and Edwardian homes.


  • Preservation of original detailing
  • Conservation of existing style
  • Restoration of former charm

Operating in Islington

Our sash windows are constructed in accordance with the guidance contained in The British Woodworking Federation: Industry Standard for Double Hung Sash Windows 1989. As standard they are workshop primed before installation.


Timber: quality hard and softwood

  • Sash cord: reinforced cotton
  • Sash weights: cast iron or lead
  • Brush seals: polypropylene filaments to PVC carrier
  • Glazing: single or double glazed

All of the materials and workmanship are guaranteed for ten years. To start getting your box sash windows back to their former glory, get in touch today.

Renovation Diagram