How to fix this hole in the wall?

[mariaria]

The electrician has gone wild on the wall when he was supposed to install underfloor heating, how do I repair this hole about 7x7 cm? It's a studded wall with particle board on both sides, no insulation.

 

[it-snubben]

The best option, if possible, is to add a drywall sheet on top of the chipboard. This way you get a perfect surface for wallpapering and still have a stable wall to hang things on.

 

[mariaria]

Well, thanks for the answer, but isn't there an easier way? To the left, there is an arch, it's tedious to plaster in arches...

 

[mariaria]

I forgot to mention that a baseboard will be put up later which will cover about half.

 

[kimpo]

Saw a slightly larger square, reinforce it with some boards, and install a new panel. Just be careful with the pipes when you cut out the hole!

 

[JanneL]

Fill with foam sealant, cut off the excess when it has hardened. You may sand a little if necessary. Glue over with fiberglass tape and apply some filler.

 

[verktygsgurun]

Cut out a slightly larger square, brace it with some boards, and install a new piece. Just be careful of the pipes when you cut the hole!

That's how I would have done it too! Much more work to patch, sand, and glue fiberglass etc.

 

[Mats]

And a piece of board becomes a bit sturdier as well

 

[5.2 racing]

There is something called One strike filler. It weighs nothing, builds as much as needed, dries in an hour regardless of the size of the repair, and is sold as a ready-made product in 1-liter cans. We use it when something deep needs to be filled. Like an empty electrical box. Apply regular filler once after that.

 

[torparnorpan]

No filler and stuff... The easiest is the suggestion above with kottlingen... and it holds up without risk of cracking or anything like that.

 

[JanneL]

Yes, the ways are apparently many, but why overwork. In plain Swedish, a lousy hole down by the floor partially hidden by the baseboard and talk about kottla.

 

[Apprentice]

The simplest solution - an A-doslock with a snap fastener - bang, done.

 

[Peter2400]

There is something called One strike filler. It weighs nothing, builds up as much as you want, dries in an hour regardless of the size of the repair, and is sold as a ready-made product in 1-liter cans. We use it when something deep needs to be filled. Like an empty electrical box. Then apply regular filler once afterward.

I can only agree with 5.2 racing, One strike filler is superb for filling such holes and it doesn't crack.

 

[5.2 racing]

no filler and crap.... The simplest is the suggestion above with kottlingen...and it holds up without the risk of cracking or anything like that.

He will undeniably have to do some filling anyway...

 

[danieldanieldaniel]

gypsum mortar then putty