• Welcome to the new forum. We're now hosted on ElectriciansForums.net rather than ElectriciansForums.co.uk - Chat about the forum upgrade by CLICKING HERE

Welcome to our Electrical Forum - We started out providing electrical advice just for the UK - But now we have specific advice for the USA too! - Register for free and share American Electrical Advice.

Discuss Rewire house using existing cable runs? in the Electrical Forum area at ElectriciansForums.net

Pete999

Forum Mentor
Electrician's Arms
Trainee Access
When rewiring a house is it necessary for electricians to chase walls and ceilings, can't they existing cables runs to pull new cables through?
If the existing cables are in conduit etc then there is no reason why not, providing the new cables are within the approved zones.
 

Andy78

Respected Member
Forum Mentor
Electrician's Arms
Trainee Access
Yes they can where possible, but some degree of disruption is inevitable.
 

Murdoch

Electrician's Arms
When rewiring a house is it necessary for electricians to chase walls and ceilings, can't they existing cables runs to pull new cables through?
why do you ask?

Most rewires involve changes and additions - so some runs may be useful...........
 

happyhippydad

Member
Electrician's Arms
DIY
It's not as simple as that. Floorboards will almost definitely need to come up. New chases are very likely even if they are in the same place (as very, very few cables are in conduit) as you cant pull cables through plaster. A rewire usually causes lots of mess and lots of disruption. Best to move out and come back a week or 2 later to a lovely clean house when it's finished, albeit full of chases to fill!
 
  • Like
Reactions: DPG

ipf

Forum Mentor
Electrician's Arms
Trainee Access
DIY
A rewire usually causes lots of mess and lots of disruption. Best to move out and come back a week or 2 later to a lovely clean house when it's finished, albeit full of chases to fill!
Only to be full of more mess after plastering....
 

Wes1000

Regular EF Member
when chasing walls for cable runs I always put in flat plastic conduit when possible so as to allow changes later on. doesn't really cost more and costumers are happy with it when I explain that it could avoid chasing walls again in the future.
 

Midwest

Electrician's Arms
when chasing walls for cable runs I always put in flat plastic conduit when possible so as to allow changes later on. doesn't really cost more and costumers are happy with it when I explain that it could avoid chasing walls again in the future.
The sparks in fifty years time will thank you for that; thats if electrickery flows in cables then :)
 

Pete999

Forum Mentor
Electrician's Arms
Trainee Access
When rewiring a house is it necessary for electricians to chase walls and ceilings, can't they existing cables runs to pull new cables through?
If the existing cables are in conduit etc then there is no reason why not, providing the new cables are within the approved zones.
 

Murdoch

Electrician's Arms
seen a couple of new builds with just clips holding the cables in place - hope the plasterer didn't damage the cables.......
 
Last edited:

123

Electrician's Arms
This side of the pond we use conduit tracked into the walls. Will it be any use if you are rewiring a house? Unlikely right now as unless it was a horror install the electrical installation will be from the 80's (at best) or much older. In which case the location and number of socket outlets will not really be suitable for modern living.

Lighting is a bit different, if they aren't going full refurb and changing the doors and keeping them hinged as they are then conduit drops could be reused, but if an older installation then back box would need replaced (have come across round conduit boxes, wooden "backboxes", no backboxes, plastic back boxes, and in some of the more recent rewires silly 16mm depth 1 gang back boxes.
 

Pete999

Forum Mentor
Electrician's Arms
Trainee Access
It's not as simple as that. Floorboards will almost definitely need to come up. New chases are very likely even if they are in the same place (as very, very few cables are in conduit) as you cant pull cables through plaster. A rewire usually causes lots of mess and lots of disruption. Best to move out and come back a week or 2 later to a lovely clean house when it's finished, albeit full of chases to fill!
You obviously haven't done that many Social Housing rewires Mate lots of switch drops done in split metal conduits, as well as Sockets, difficult to rewire but not impossible if you know what you are about, something they don't teach, only experience will provide that skill set.
 

ipf

Forum Mentor
Electrician's Arms
Trainee Access
DIY
You obviously haven't done that many Social Housing rewires Mate lots of switch drops done in split metal conduits, as well as Sockets, difficult to rewire but not impossible if you know what you are about, something they don't teach, only experience will provide that skill set.
Once found this on a rewire, Pete. Innovative or what?
latest photos 194.jpg latest photos 196.jpg
 

Electrician Talk

Electrical Forum

Welcome to the Electrical Forum at ElectriciansForums.net. The friendliest electrical forum online. General electrical questions and answers can be found in the electrical forum.
Electrical 2 Go - Electrical Supplier and Electrical Wholesalers
Electrical Insurance
ElectriciansForums.net (formerly known as ElectriciansForums.co.uk) was setup in April 2006 to provide free electrical advice to both professional and DIY electricians. Whether seeking advice for auto electrics, trying to find electrical installation condition reports (EICR) form downloads, or whether you're here just to talk to other electricians; we've been a first-choice website for tens of thousands of sparkies for well over a decade.
Top