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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
  • 5 days ago
    ratings 5
    Perfect fit
    Everything arrived as ordered. Fitted easily and looks nice
    Product : Now have 2nd and 3rd window done. Very happy.
  • 3 weeks ago
    ratings 5
    Narrowboat Aslan
    Ease of ordering, telephone assistance where required and prompt delivery
  • 1 month ago
    ratings 5
    A quality product made with care, and looking great!
    Lovely product. Helpful instructions to ensure correct measurements, delivery date as promised, great product, anxious about fitting, but following instructions it was pretty easy. Now we have fitted our first window we can order some more with confidence! The fitted window looks...
    Read more...
    tessa, Wiltshire
  • 1 month ago
    ratings 5
    Nothing to complain about - perfect for the job
    Easy and accurate
    Product : Ideal product and fit and ease of installation
  • 2 months 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...
    Read more...
    Jill Wilson

Extreme Adhesive Test

 

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

Proven to improve

 

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

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Recommended for Listed Buildings

 

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

Read more...
 

DIY Delivery & Installation

 

 

flat surface troubleshoot 1Extraglaze is applied on the inside of any window, never outside. Some windows will only require one panel of Extraglaze. More than 3 panels is unusual, except for bay windows.


When looking at your windows all we need to know is that:

1 there is a flat surface all the way around each window

2 the flat surface is in good condition (good paintwork)

 

 

Flat surfaces absent?

In some situations one or more flat surfaces are missing. An example is shown in the animation to the right. Our fitters are resourceful, and can usually add a very effective instant, white flat surface.

 

Sash Windows – parting beads

On sash windows the flat surface is often interrupted by the parting beads (as shown above).

Our fitters will usually be able to bridge this without modification of the bead.

 

Window painting

If you are painting your windows in advance of Extraglaze it is very important to do this to a professional standard. This would include removal of loose paint, a good sanding down, cleaning with methylated spirits (use white spirit for oil based paints), and primer applied before undercoat or top coats.

 

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

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How to stop condensation

 

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

 

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