Question How to run cables in walls with solid insulation?

MIghtyG

Well-known Member
Im looking to wall mount my new TV so need to run a couple of HDMI cables and the power lead for the TV - I have done this is the past easily enough in walls with fiberglass insulation but this is going to be my first go at solid foam insulation.

the room is being mounted in is a recent build so I know I dont have any noggins to contend with, I just need a way to cleanly get past the sold foam insulation.

Any one done this? Any tips/tricks/pointers?

At the moment I am considering just using a set of flexible cable running rods and poke and prod my way through but I can imagine that being a pretty tedious way to do things and will do alot of damage to the insulation.

TV is going in the middle of this wall......X marks the spot:

upload_2018-7-24_12-15-47.png
 

MIghtyG

Well-known Member
I take it the photo isn't the wall in it's current state?
Probably should have clarified that :)

Photo is about +12 weeks ago - since then its been plastered and painted.

EDIT:

Current state of the room:

upload_2018-7-24_12-46-10.png
 
Last edited:

Navvie

Member
:smashin: Brute force and ignorance with those rods might be your best bet. How destructive are you prepared to be?

Looks great! Is that a Neato robot hoover? Wouldn't be without mine now.
 

MIghtyG

Well-known Member
:smashin: Brute force and ignorance with those rods might be your best bet. How destructive are you prepared to be?

Looks great! Is that a Neato robot hoover? Wouldn't be without mine now.
Thats what I was thinking, im just a little worried about trying to poke through the insulation and the rod coming out the other side of the foam rather than skimming down between the plaster board and the foam.

I think I need something wide and narrow (duck bill type shape) to run in front of the rods - being wide and narrow it should keep the rod between the plaster board and the foam and it will leave the rod to do the damage to the foam but all in the right place at least......I hope!

Regarding destruction wise, my initial plan was to cut out a channel in the plaster board and foam, stick in a small conduit and then run the cables, then plaster over, sand and paint. But having just finished taking down a room full of coving, plastering holes, sanding and painting.......not sure I have it in me again so soon! :)

And yes, a Neato Botvac, absolutely loved the thing until I changed furniture in the room. Now the clearance between the top of the Botvac and the TV unit is such that it can manage to wedge itself in below it and get stuck so it cant back out! Need to come up with something to sort that one out, I can use a magnet strip infront of that TV unit but I have a side board the exact same height with no rug to hide a magnet strip.
 

nickolp1974

Active Member
If there is any room between foilboard and Plaster board you could use a bit of 30mm bit of trim such as this Wickes PVCu White Cloaking Profile 30 x 2500mm | Wickes.co.uk
Just cut a slot top and bottom, tape on wire and go fishing! If you are near a window installers they would probably give you a couple of meters.
To add the trim is usually 6mm thick.
 

mcbainne

Distinguished Member
Looking at the first pic there's the twin and earth for the socket running down the RHS of the framing behind the TV. I'd cut a single gang hole in the top location and try and locate that. Then disconnect the socket and pull the cable back to the top location with a draw wire attached then pull the T&E back down with the new cables taped on. It'll probably be tight but hopefully there is the space to get them down
 

MIghtyG

Well-known Member
Looking at the first pic there's the twin and earth for the socket running down the RHS of the framing behind the TV. I'd cut a single gang hole in the top location and try and locate that. Then disconnect the socket and pull the cable back to the top location with a draw wire attached then pull the T&E back down with the new cables taped on. It'll probably be tight but hopefully there is the space to get them down
Good spot, I think there is power running up there for my ceiling light and smoke detector. Will have a bash at trying to find it without electrocuting myself and see if I have enough space to pull a few extra cables along with it.
 

MIghtyG

Well-known Member
Well, got half a job done so far at least:

upload_2018-7-30_10-42-44.png


Seriously tempted to just go for a short section of D-Line trunking......I need to buy some to hide some cables along the skirting board anyway, might just pick some up and see if it annoys me too much.
 

MIghtyG

Well-known Member
Move the centre speaker to the top of the unit and it would hide them even more ;)
Yeah thats what I was thinking, the centre speaker only went into the unit as the TV was sat ontop. Might move that and that will free up some space for a blu-ray player or something in the unit.

Its an Ikea unit so would be nice and easy to get a new door on the front of it to hide stuff inside :)
 

mcbainne

Distinguished Member
You might find an improvement in the sound as well with the speaker higher up and closer to the TV so win win
 

Ronski

Well-known Member
And yes, a Neato Botvac, absolutely loved the thing until I changed furniture in the room. Now the clearance between the top of the Botvac and the TV unit is such that it can manage to wedge itself in below it and get stuck so it cant back out! Need to come up with something to sort that one out, I can use a magnet strip infront of that TV unit but I have a side board the exact same height with no rug to hide a magnet strip.
Surely just a case of making the TV unit slightly higher, can you fit some felt pads to the legs, it might be enough?
 

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