Insulation around consumer unit

Our consumer unit is set back in the wall and was recently changed for a newer, smaller unit which has left a gaping hole in the wall/plasterboard around the new unit. How can I safely fill/insulate this hole to stop the draft that is now pouring in? Can provide pictures if required.

7 Answers

PowerOn
0 Reviews
Will still need to call electrician to isolated any sours of electricity as wall can be done by yourself or another tradesman but usually electrician will e able to complete this task as well
6th Feb 2024
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Samlighting
1 Reviews, 100% Positive
You can fill the gap around the consumer unit with expanding foam insulation. Ensure the foam is suitable for electrical applications and follow the manufacturer's instructions for safe usage. Once it expands and cures, trim any excess foam for a neat finish.
19th Feb 2024
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When cables run through insulating material they need to be thicker to be able to handle the same current.

I have seen some old installations with under size cables to start with so I would advise you to get some one on site to advise rather than remote on a forum.
11th Mar 2024
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Lk&sons
2 Reviews, 100% Positive
You would have to Cut it out re-plasterboard and fill with expansion foam hope this helps
12th Mar 2024
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IP rating for over the top of CU should be at least IP4X and for the side and bottom of CU should be at least IP2X
26th Mar 2024
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Have you thought of making a box to cover the unit. That's what I have down and it looks lovely now. If you want to close the hole, I would put buttons across and make a false wall before filling the gaps. If you would like some help I can do this for you.
25th Mar 2024
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This could be patched with more plasterboard.
And sealed with iridescent (fire resistant sealant)
But to also allow the fuse board cover to be removed and maintained .
18th Apr 2024
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