A warmer room - without replacing your windows.

CosyPane adds a magnetic secondary glazing layer to your existing window, helping reduce draughts and softens outside noise in minutes.

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My Story

My office faces the road and I could hear every car going past.

The room also felt colder than the rest of the house.

So I decided to test something myself.

I built a removable magnetic window panel using clear Perspex.

It doesn’t make the room silent —
but it softens the noise and the window feels noticeably warmer.

Still refining it, but the difference is real.

What is CosyPane


CosyPane is a custom-fit magnetic window panel

that attaches to your existing window frame

to improve comfort without replacing your windows.

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Before → cold / exposed
After → sealed / improved

Step 1

Measure your window

Step 2

We cut to size

Step 3

You install in minutes

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Everything is included: from the panel to the fitting materials - so you can install it properly without guesswork.



Frequently asked questions

Does it block all noise?


No — it reduces and softens outside noise

Will it fit my window?


Each panel is cut to your measurements

Is it permanent?


No — fully removable