Send message to Selectaglaze Ltd
Ask a question
List of suppliers/where can I buy
Sample request
I have read and agree to the terms and conditions of usage and The Building Centre's Privacy Policy. Your request will be sent and shared to the selected manufacturers you submit a request to.

Find products

Use our product finder to search for products and materials

Subscribe to our newsletter to receive news about events and exhibitions, innovation and materials on the latest building product innovations, case studies and more.
I have read and agree to the terms and conditions of usage and The Building Centre's Privacy Policy.

Founded in 1966, and Royal Warrant holder’s since 2004, Selectaglaze has over 50 years of experience in providing bespoke Secondary Glazing to buildings of all styles. From Listed heritage buildings, to new-build hospitals, hotels to school classrooms, museums to private homes; modern and sympathetic secondary glazing can be used to enhance their environment.


‘Measuring carbon footprint’ and ‘becoming more sustainable’ are just two phrases that we regularly hear. There is also a growing awareness that a high ranking Energy Performance Certificate (EPC) will ensure that buildings meet acceptable standards for letting and enhance their market value.

Purpose designed frames with thermally efficient glass can reduce heat loss by more than half and advanced seals will minimise losses though air leakage almost eliminating draughts. Secondary glazing can achieve U-values of between 1.9 – 1. This not only creates a more comfortable living or working environment but can help reduce energy bills.


High noise levels can be very disturbing leading to problems with sleep, concentration and wellbeing. If you create a cavity between the primary and secondary glazing, the separation decouples the panes, markedly reducing sound transmission. Well-designed secondary glazing set 150mm apart from the outer window will achieve 45dB reduction compared with about 34dB for standard double glazed units. 


Improved security provides peace of mind and simple secondary glazing with locks and strengthened glass offers an unobtrusive second barrier to entry, deterring the opportunist thief. However, many buildings will need much higher levels of protection both for people and for high value artefacts or sensitive data. In these cases secondary glazing with certified levels of protection against determined intruders, bomb blast or even a ballistic attack are available.


Throughout the UK there is a wealth of buildings with architectural or historic interest. As a result the buildings are generally cold, draughty, noisy and un-secured. Most of the UK’s heritage bodies accept that secondary glazing is a reversible adaptation and, when sensitively designed, can provide real benefits that ensure the building continues in use and is well looked after.

Selectaglaze offers technical advice on projects as well as assistance in selecting the right product for your specification. Also if you want to learn more about what Secondary Glazing can do for your future projects, please contact us to arrange a RIBA approved CPD seminar in “Understanding and Specifying Secondary Glazing” or “Window Protection Through Secondary Glazing Systems”.


News and Case Studies


Selectaglaze Ltd

  • Alban Park
  • Hatfield Road
  • St. Albans
  • Herts
  • AL4 0JJ
  • 01727 837271
Find products