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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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  • 2 weeks ago
    ratings 5
    Service rating : I spoke with the team at Extraglaze and they were brilliant explaining everything I needed to know
    Product : Amazing product easy to fit and works brilliantly
    Andrew Eaton
  • 2 weeks ago
    ratings 5
    Absolutely brilliant.
    Having an old house with beautiful sash windows, we didn't want to replace them with plastic. We now have unobtrusive secondary double glazing at a fraction of the price. Already, the house is warmer and so much quieter. We live on a main road. They are easy to fit. Fitted 4 windows in an afternoon....
    Glynn Roberts-Morgan
  • 1 month ago
    ratings 5
    Canal boat condensation
    Service rating : I live on a canal boat and condensation is a problem. I have 13 windows now fitted and absolutely delighted.

    No condensation and warmer air. The sealing tape is excellent.

    Can't wait for winter.

    I wholeheartedly recommend Extraglaze.
    Product : I live on a...
    Steve Brown, Hemel Hempstead
  • 1 month ago
    ratings 5
    Extraglaze is a superior first class product.
    Service rating : I ordered Extraglaze for one large bay window which has four stained glass panels at the top. Nic from Extraglaze came to measure up and gave advice and detailed information on the whole process. He returned to fit the eight panels in all on two more occasions and throughout the...
    Angela Jones, Coventry
  • 2 months ago
    ratings 5
    Excellent product and service.
    Service rating : The service was excellent. Very helpful staff who gave you useful advice. Panels fitted perfectly and matched surrounding woodwork in honey oak. The magnetic strips and panels are hardly noticeable. I'm very pleased with the secondary glazing eliminating draught and condensation and have...
    Beryl Watkins

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.


Magnetic tape - adhesive backed per metre


Magnetic tape - adhesive backed per metre

Magnet with foam adhesive on the back
Magnet with foam adhesive on the backLaminate Colours
£12.00 each
Colour-matched (laminated)



Please order by the metre (always sold as a pair*). Note: this is offered here as a "spare part" because it is already included with every panel you purchase.


Self adhesive magnetic tape. An incredibly strong, white adhesive on the back. Overall thickness approx. 2.5mm.


Use this on the window frame. Please select the best colour match (an effective camouflage) or this will be visible as a thick line around the window frame unless Extraglaze panels are installed over it.


The pink you see in the picture is the disposable release film, which protects the adhesive until you fix it.


This can also be stuck to acrylic sheet: when looking through the plastic, you will see the colour of the adhesive foam i.e. white.


*Sold as a pair

You will always receive a matching pair, one magnet to be stuck to the panel, one magnet to be stuck to the window frame. When you order a colour-matched length then the magnet intended for the window frame will be laminated in your choice of colour, however the magnet intended for the panel will be natural (never laminated).


Help & Guides

measuring icon


How to stop condensation


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