Hi Shaun, thought I'd give you an update, I got a quote for the work & I was shocked at the price , here's the quote.So that would mean digging down & adding a run of pipe which would run 9ft left to get to the new WC , that's a lot of digging , looks like a no go for me , anyway Shaun thanks for all your help much appreciated .
For us to excavate the ground to allow installation of a new underground pipework, core 110mm hole through the wall and leave pipework inside to allow a plumber to connect to will take us four days to dig the ground and reinstate the monoblock
Labour per day £760.00 + vat x four days
Materials pipe work £60.00 + vat
Materials fittings £200 + vat
Concrete £40.00 + vat
Sand £30.00 + vat
£3370.00 + vat
£4044.00 Inc Vat