Cocoon Window Insulation are magnetic secondary glazing and draught proofing specialists. 

Our award-winning flagship bespoke magnetic secondary glazing InvisiTherm® is an innovative polycarbonate secondary glazing that turns single glazing into double glazing, eliminating the need to replace windows. 

This all-in-one slim glazing solution is the perfect secondary glazing for heritage glass and listed buildings: improving thermal insulation, reducing condensation*and reducing noise as well as so much more! 

Our heritage glazing is slim and virtually invisible: our customers fondly call it the “invisible”  slim glazing system. 

Based in Perth, we can offer our services throughout Scotland, from Aberdeen to Dundee, Glasgow to Edinburgh and throughout the borders.

*in the vast majority of cases, our products completely eradicate condensation, but occasionally, environmental conditions mean that while condensation is greatly reduced, it may not be completely eliminated.

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Bespoke secondary glazing throughout Scotland

Windows
Glasses
A white window
Door
Double glazing window

Enjoy the benefits of double glazing (and more) without losing your beautiful original windows!

At Cocoon Window Insulation, we appreciate the beauty and historical value of listed buildings. Our professional team will install our slim glazing InvisiTherm® in a way that works for your existing windows, without compromise and to an exacting high standard.  

We are Edinburgh Council Trusted Trader approved, and work with councils across Scotland to ensure that your InvisiTherm® bespoke magnetic secondary glazing installation runs smoothly and without the need for any planning permissions.

Visit our Gallery to see our previous installations

Customer testimonial

“ We found Tanya extremely helpful and efficient. The secondary glazing was also fitted in a few hours, by a friendly and competent team. With its magnetic strips disguised behind appropriately coloured wood-effect tape, and matched colours, it is next to invisible.  

All in all, we would very thoroughly recommend Cocoon Window Insulation for anyone seeking a warmer, greener, and quieter home life.”

DF & NF, Edinburgh
Call Us Today to Arrange Your Survey
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To find out more about our  bespoke magnetic secondary glazing, 
give us a call on 01738 562 068 
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