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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
  • 5 days ago
    ratings 5
    This is my second purchase of Extraglaze panels, The first panel has been of a real benefit dealing with condensation and I trust these will be as good.
    The service was excellent from order to delivery
    A R Day, Ipswich
  • 1 month ago
    ratings 5
    Ordering and delivery went very smoothly. No complaints. Quality of glazing is yet to be determined. Please send further questionnaire in second half of |June. W H Raybould
    William H Raybould
  • 3 months ago
    ratings 5
    Excellent service by Extraglaze Ltd
    Service rating : Great product, well made, good service and rapid delivery.
    Product : Neat, well made and effective
  • 3 months ago
    ratings 5
    Excellent product, does what it says
    Service rating : Great customer service.
    Product : Good quality product. Really clear and looks very neat on my old windows. No more wiping moisture of my windows.
  • 4 months ago
    ratings 5
    Excellent service by Extraglaze Ltd
    Service rating : Good service and friendly team
    Product : Great cost effective product, noticeable difference since the install.

Extreme Adhesive Test



We wanted to prove our adhesive is 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.


Extraglaze for casement windows




Simple and elegant

The Extraglaze System uses a specialist, light weight, shatter resistant acrylic material for the glazing panels. This is substantially the same material used for the lenses in spectacles and for aircraft windscreens and has exceptional optical clarity.

Our discrete panels are edged with very slender, precisely polarised magnetic strips* that automatically align themselves when removed and replaced. There are no frames as such.

The video guides, on the right hand side of this page, will help explain how the system works in more detail.

*Magnets and panel edges can be coloured to match your windows making Extraglaze almost invisible.


To make an enquiry use the Contact Us page or email using This email address is being protected from spambots. You need JavaScript enabled to view it..

Help & Guides

measuring icon


How to stop condensation


For sash windows
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For casement windows
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Easy Open System
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