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insulation sound proofing draught proofing stop condensation
ExtraGlaze contact details
Instant quote
Extraglaze Explained
Measuring Guidelines
Solutions for listed buildings
order free sample
  • 6 days ago
    ratings 5
    Nothing to complain about - perfect for the job
    Easy and accurate
    Product : Ideal product and fit and ease of installation
  • 2 weeks ago
    ratings 5
    Excellent service throughout
    Very helpful advice over the phone prior to placing order and they responded quickly when we found we had missed one panel from our order - they went out of their way to complete the order promptly so that we were able to install before Christmas. Felt confident in their...
    Jill Wilson
  • 4 weeks ago
    ratings 5
    Excellent secondary glazing
    Easy to use website, delivery was in a very well packed box protected well from any potential damage.
    Product : It works extremely well reducing noise and cutting out all the draught. It makes an amazing difference to the room . The frames blend into the window and you hardly...
  • 1 month ago
    ratings 5
    Very efficient service and precise ordering details to ensure correct measurement of glazing. Also pleased with the comprehensive fitting instruction - process was easy to follow and went well.
    Product : Fitting has been fine - panel hasn’t been in place long enough yet to see if...
  • 1 month ago
    ratings 5
    Product delivered on time and to exact measurements. They look so good you hardly see them
    Paul Robinson, West Sussex

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


A typical installation
For sash windows
For casement windows
Easy Open System