MaxB wrote:
Despite Thames Water's claim to be replacing so much of our water
mains, it is very noticeable that major road works generally
involve GAS main repair/replacement.

In parts of West London, it's wall-to-wall Thames Water at the moment.

I can't help thinking that if Transco adopted the same approach as
Thames Water to waiting for things to go bang before you mend them,
London would be a very dangerous place to live! And if Transco can
(usually) stop leaks before they happen, why can't Thames Water?

Because they left it too late to start the mains replacement programme.
--
Richard J.
(to e-mail me, swap uk and yon in address)