Building contractor to demolish 6m by 4m garage, remove ruins and the verbs founds for ext total 15m @ .9m? UK Price to include demolition, removal of garage and garage floor and...

UK Price to include demolition, removal of garage and garage floor and garage foundations, all wreckage to be taken away. Extension foundations are 15m in length by .9m low and .9m wide.
How much would it cost (aprox) to build...
Answers:    i would own thought closer to1200 by the time you have accounted for skips,digger hire etc
How much will it cost to hold my...
lb400 to lb600 UK price.