Hi all,

Is there a way of finding a leak under a concrete floor without digging
it up? Is it best to use the visual method of dampness on the concrete
or should I go more high tech and hire someone to detect it? Either way
the floor has to come up I reckon.

Also, my kitchen extension has started to leak where it joins the
original house wall. The lead flashing seems to be joined into the main
house wall although I have noticed the cement covering the flashing is
cracked.

Cheers,
Rory.