Repair/fill large holes in drywall

[Lagerlasse]

Hello,

I have had an electrician here in our 70s house who has redone all the wiring.
Throughout the ground floor, he has made large holes in the wall under all the electrical outlets to run the wiring inside the wall instead of on the outside as it was before.

How do I best repair these holes?

 

[Kurtivan]

Gypsum plaster maybe?

 

[useless]

The easiest way is probably to place a standing piece of planed white-painted trim that is as wide as the gap over the hole?

 

[Dublin]

Now it's a bit difficult to see in the picture, but if the flexible hoses are completely inside the plaster, you make straight cuts on the hole and bevel them, then you cut a new piece of plaster in suitable size and glue it. Something like this https://www.gyproc.se/gör-det-själv/laga-hål-i-gipsvägg

 

[Lagerlasse]

Plaster mix maybe?

I've never worked with plaster mix before, but it might work.
Do you have any tips on a good plaster mix?

 

[Lagerlasse]

The easiest way is probably to place a standing piece of planed, white-painted cover strip that is as wide as the opening over the hole?

That's roughly how it looked before, except with a plastic cover strip, but it didn't go over well with the wife in the house

 

[useless]

Then perhaps the missus can present a better solution?
Even if you patch up the hole in the drywall, you still have a green square where the wallpaper is missing.

 

[Lagerlasse]

Now it's a bit hard to see in the picture, but if the flexible pipes are entirely within the gypsum, you cut straight edges on the hole and bevel them, then cut a new piece of gypsum to the appropriate size and glue it in place. Like this [link]

In some of the holes, unfortunately, the flexible pipes are at the same level as the gypsum and they're very rigid. But in places where they lie within, your suggestion sounds like a good option.

 

[Lagerlasse]

Then the wife should present a better solution?
Even if you fill the hole in the drywall, you still have a green square where the wallpaper is missing.

All the walls are going to be painted and wallpapered again, therefore I need to fix the holes first.

 

[useless]

Ok. In that case, it's just a matter of filling in the holes.
https://www.k-rauta.se/produkt/wallfiller-casco-10kg/7612895470160