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insulation sound proofing draught proofing stop condensation
elegant secondary glazing
ExtraGlaze contact details
Instant quote
Extraglaze Explained
Measuring Guidelines
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order free sample
  • 2 weeks ago
    ratings 4
    Excellent result
    Service rating : Extraglaze offer a great service and made a wonderful job of installing secondary glazing on our stained glass windows. They were very patient with me going backwards and forwards to ask for different variations on the quote. However, despite having given as much information in...
  • 2 weeks ago
    ratings 5
    Service rating : Have used extraglaze several times great service as always !!!
    Product : excellent service and support
  • 3 weeks ago
    ratings 5
    Service rating : Excellent level of communication, explanation and general contact. Nic was always there to discuss, answer questions or clarify any query.
    Product : The panels are excellent, and the magnetic fixings have worked a treat. They are virtually invisible and have cut our condensation...
    Dr Martin Toms, Herefordshire
  • 3 weeks ago
    ratings 5
    Outstanding product, 5 star service
    Service rating : Nic Irvine provided fantastic service from start to finish. He was happy to spend time on the phone answering numerous questions about the product initially. He then took time doing a detailed survey of our windows, established recommendation from someone I was able to visit, and...
    Rebecca Burrell
  • 4 weeks ago
    ratings 4
    Service rating : Delivered what and when was required
    Product : same as previously ordered
    George Tillier

Extreme Adhesive Test



We wanted to prove to ourselves our adhesive is as good as if not the best!

Proven to improve


coventry university logo bre logo


The Building Research Establishment and Coventry University complete tests of the Extraglaze system
Soundproofing and thermal test results...


Recommended for Listed Buildings


Telford and Wrekin Conservation Department encourage the use of secondary glazing, where possible, to increase thermal efficiency.


Suction cup


Suction cup

A very powerful suction cup ideal for lifting Extraglaze
£12.95 each


Use this excellent quality suction cup to handle your Extraglaze panels. Uses: a) in tight window apertures where your fingers cannot grip and pull panel edges, and b) when a panel is awkward to lift because of its size.


Simply wet the pad, press it against the panel close to one side, squeeze the handles together and it will stick very securely. You can then lift the panel off the foundation magnets. Even our largest panel size can be carried around with one suction cup, without fear of it coming free. To release the panel you just prise the handles apart, with very little effort.


Order two for extra ease of handling.


Help & Guides

measuring icon


How to stop condensation


For sash windows
sash up
For casement windows
casement up
Easy Open System
easyopen up