re-use concrete foundations?
We're planning to replace our existing conservatory with a more modern
"glass box". The conservatory has some fairly major concrete
foundations, but the box would be a different size and therefore the
foundations won't do. Is it possible simply to extend those foundations
by a metre or two (horizontally - the height/depth needn't change), or
do they need to be complete dug up and replaced?
Vince.
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