The first thing we do when fitting skirts is try and locate any electrics and plumbing prior to fixing. Kitchen fitters do the same thing.No chippy is gonna start faffing around with one of those to find pipes.
Not unless someone points out to him that a pipe run is behind the plaster board and even then he'll probably just get the glue out.
I have that thing in the image and its useless.
Try this mebbe.. http://www.youtube.com/watch?v=QNHZH0egIfU
I use miniature neodymium magnets to find studs.
There should have been a conversation between the chippy and homeowner about services prior to him getting his hammer out the van.
Jeepers Norcs you are uber-naive about domestic building. You stick to civils boyo.
Carpenters here in the province don't have too faff around finding electrics or pipework as the previous tradesman did his job properly!
You stick to house bashing and bodging.