Installing cables in a drywall after construction.

Hello,

I would like to retroactively install LAN cables in every house. The walls on the upper floor are made of drywall. Is it possible to lay a LAN cable to the attic and from there push the cables into the walls?
So far, there is no covering in the attic. If the insulation is removed, you should actually be able to reach the drywall wall, right?
There are 3 rooms, and each room should have 2 LAN cables. However, I would prefer that the wallpaper does not need to be removed; instead, only a hole is drilled next to an existing socket and the cable is pushed in from the attic.
Thanks in advance for the answers.

Depends on how the frame of the drywall is constructed. If there are continuous steel beams running vertically, you cannot push anything through.

So what I can say is that first the ceiling was clad and then the walls were installed under the ceiling. Is it possible that if I remove the insulation in the attic, measure where the wall is, and then simply drill a hole from above through the drywall into the UW profile? Because then you could push a cable through the hole, right?

don't be mad..

but as long as no one here has your exact house construction plan and the installation plan of your house provider,
no one here can tell you what is where.

If you want to know that, you either have to have a plan that shows exactly where in the wall which beam runs how..
Or you have to ask your house company.

Ok thanks anyway for the answer

If the walls are not yet plastered, you can simply unscrew the drywall panels.

best regards

K.Brodbeck