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insulation sound proofing draught proofing stop condensation
elegant secondary glazing
ExtraGlaze contact details
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Extraglaze Explained
Measuring Guidelines
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  • 7 days ago
    ratings 5
    Fantastic for original single glazed windows
    This product is truly amazing for any property that has an original single glazed window fitting, such as wood or metal crittal. As an award winning estate agent covering the wider Bromley area in Kent, we are approached by Landlords and property owners in need of adding some form of insulation to...
    Tracey Cannon, Vincent Chandler Estate Agents, Bromley, Kent
  • 1 week ago
    ratings 5
    Very straightforward, no problems and just as ordered.
    Barry Hunt
  • 2 weeks ago
    ratings 3
    Smooth transaction
    Service rating : ordered and delivered as expected
    Product : awaiting to see reduction in my heating bills
    Thank you for your review submitted on Feefo.

    I believe you gave it fewer stars than any other customer, so we are disappointed that you are disappointed with Extraglaze.

    We expect your windows will last longer as a result of the Extraglaze, be free from condensation and also need...
    George Tillier
  • 2 weeks ago
    ratings 5
    Service rating : We didn't fit the panels straight away so I hadn't noticed the fitting instructions were missing. Richard Greenland, the director, sent these a few days later with an apology that they had been left out of the parcel.

    We were kept informed of the progress of our order,...
    Anne Dean, Enfield
  • 1 month 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

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

 

coventry university logo bre logo

 

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

Read more...

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

measuring icon

 

How to stop condensation

 

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

 

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