Help with wiring please

[hardcastlephil]

Good evening,

I was hoping for some simple wiring advice. We're currently renovating our house and one of the jobs is to remove the cabling from the outside. Lots is sky/old tv etc. but one line is power to an outside light. The power comes from the back of a socket on the 1st floor to some kind of fused spur box. From then it runs right round the outside of the house (in a lovely light gray which is very obvious) before dropping down to 1st floor switch height - through the wall to the switch then back out again before continuing round the house to the outside light. The pic below might help a little - it's the power line in blue. It looks even more of a mess in real life!



I was going to just remove the wire and do without a light as we don't use that door, but Mrs. H has now suggested that she would like a light still. We're just about to decorate the front hall so best to do anything before than after!

My question is - could I go from the 1st floor above the entrance hall and take power from the light in there (Red switch and light on my pic), chase it down the wall to the switch, back up the wall and then out at floor joist level to the front where the light is. The house was re-wired circa 2002 - will there be a constant supply at the light in the entrance hall?

Sorry for what may be an obvious question. I'm happy to do the donkey work then get a spark in to wire it all - I just need to know if it's possible before I start the decorating! If it is I can't understand why the electricians didn't just do it first time around. We've got the same issue at the back of the house.

Cheers, Phil

[hardcastlephil]

Evening - thanks very much for all the replies.

I was hoping this would be the case - I'll have a look tomorrow at the light and see what's there.

At least it means I can start chasing a channel from the switch now before decorating!

Cheers,

Phil