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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.


Stacking strip per metre


Stacking strip per metre

Parking steel
Parking steelWatch a Sash upper panel being parked onto parking stripsLaminate Colours
£2.39 each
Colour-matched (laminated)


Please order as follows:
- Steel, by the metre
- Stainless steel strips, specify a quantity
NOTE: The stainless steel version is essential for damp and wet rooms. This is supplied in lengths of 950mm. They will very neatly butt up together if you require a longer length.


Simply peel away the pink/red protective coating then apply the steel tape to the left and right sides of the panel you have chosen to stack onto. Click on the window image above to see an animation of how this works. The green highlights show the position of the strips.


This is a steel (or stainless steel) self adhesive tape which can be fixed to the front of an Extraglaze panel. This allows an adjacent panel of the same width to be safely 'stacked' on top, giving you unobstructed access to the window so that it can be opened. The panel can be kept there for the duration of the warmer months, so your window can be opened at any time without having to handle the panel regularly.


Help & Guides

measuring icon


How to stop condensation


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