Information to help you ...

Window/door styles

Please click on the link below for the window diagrams and codes. The arrows where shown, denote the hinge when viewed from outside of the property. You will need Acrobat Reader which is free to download here.


Please use these codes:

  • Fit into original timbers - I/E
  • Fit direct to brick or stone - DTB
  • Supply with new timber frames - HWF

This will be Sapele or similar with one protective basecoat unless an alternative is preferred and stated on the estimate schedule.

Window framing colour

  • Black - BL - standard
  • White - W - standard
  • Black/white (inside) - BW - standard
  • Single RAL colour - SR - non-standard
  • Dual RAL colour - DR - non standard

    RAL is the European standard for paint colours.

Request a FREE Quotation

The Heritage Window Company are specialists in slimline aluminium replacement windows for period steel and 1930s style windows. Because the originals were supplied in standard sizes, we are able to provide an accurate estimate of their replacement with slimline BenendenTM products. Please complete the details for all windows/doors in your property.

Due to high levels of demand we can only provide our Full Installation Service in the following counties: Kent, Surrey, Bucks, Herts, Bedfordshire, Hampshire, Sussex, Essex, Oxfordshire, Northamptonshire, Cambridgeshire, Suffolk, Norfolk and Peterborough.

A Supply and Delivery service is available to any part of the UK that includes full measuring/fitting instructions. This form will accommodate the specifications of 10 windows. If multiple windows of the same size and style are required, please indicate this by using the “Number of windows/doors” box. Alternatively, details of products required may be emailed to If you would like any further information, or if you are having difficulty with this form, please call us on 0208 695 0055 – we will be happy to help.


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