So you're faced with a re-wire and the ground floor is a concrete one...

[Mr.Si]

...what would you do?

I am faced with this for my own place and as the time gets closer to when I will be carrying this out, I am fishing for ideas.


My initial thoughts were to channel out the floor and chase up the walls to the socket points, lay steel conduit in it and wire in singles. Once done, I'd then fill the floor (except I don't know what you'd fill the gaps with, so there lies another question!).

However, would there equally be value in taking the cables via the ceiling instead of the floor (Twin and CPC) and just chasing all the way down the wall to the socket points instead?

I don't want surface mount.

What would your choice be?

Downstairs there's a kitchen and a lounge and a cupboard under the stairs, which is accessed via the lounge.

Your thoughts, ideas, experience and advice would be much appreciated.

Thank you in advance.

Si

 

[rocker]

Just do everything under the first floor and channel down the walls, surely. Am I missing something here? Channelling out a concrete floor would be madness!

 

[bugsy]

From the first floor down

 

[telectrix]

agree with both^^. why make hard work when chasing plaster is easy. and more conventional.

 

[RWJ]

Again as per previous posts....... Chase out walls unless you really like the challenge!

 

[telectrix]

and if you want it rewireable, use oval tube, not capping.

 

[elektrisien]

What is the difference between oval tubing and capping ? excuse my ignorance.

 

[PC Electrics]

'from above' seems to get the popular vote! gets mine too.

 

[telectrix]

capping is what it says. capping over the cable. oval tube is conduit thats flattish so as to fit plaster depth without cutting into the brick, as you would have to do with round conduit. and you can fish new cables in tube. with capping it's not that easy esp. if the wall is uneven.

 

[rocker]

The difference is oval is good and capping is tosh.

 

[Electricalserv]

Just do everything under the first floor and channel down the walls, surely. Am I missing something here? Channelling out a concrete floor would be madness!

What about the new builds with concrete gound floors and first floors....going to be an absolute headache in the future.....

Obviously from above...no brainer really

 

[brucelee]

Hi mate there are a lot of existing flats which have concrete floors for both flats so they are done in trunking around the top of the wall and then chased into walls from ceiling to switch or socket
if the ceiling is not concrete then deffo above if its is still above but with trunking forget channelling the concrete floor

 

[RWJ]

Coving Trunking.... MK do it

 

[Mr.Si]

Thank you all for that.
As you probably understand, I'm still fairly new to it all and so was intrigued as the best options. The first floor is joists, so I'll route the cabling through them.

Has anyone ever had no choice but to actually channel the concrete floor before? if so, how did you do it? angle grinder?

 

[Electricalserv]

Thank you all for that.
As you probably understand, I'm still fairly new to it all and so was intrigued as the best options. The first floor is joists, so I'll route the cabling through them.

Has anyone ever had no choice but to actually channel the concrete floor before? if so, how did you do it? angle grinder?

I was in the wholesalers and a guy came in saying he was channeling floor out. He was using a breaker, said it was a nightmare.