Thread bump, I've just had a quote and need to sense check. Initially it felt very expensive but looking online and breaking it down it does seem fine in the end? It's being done by the grounds team who did the foundations for our extension so they've already been on site and we're happy with the quality of work.
100m2 of porcelain slabs (supply and fit)
Foundations and retaining walls for steps and 1 side of the garden
Fit channel drains along the new extension
Concrete base for a shed (8x6ft)
About 5m of sleepers
Remove about 15 tree stumps, bring up to flat level, rotavate garden (roughly 30sqm), supply 20 tonnes of topsoil, lay new turf
£17.5k+VAT
Based on £100sqm for the slabs, plus £40sqm for ground prep that's £14k, then all the other garden bits, sleepers and the shed base it feels okay now thinking about it.
Slabs are £25sqm as we've picked them, based in the SE so an expensive area.
They said it would take about 3 weeks and there are 3 of them, so that's why the costs initially seemed high - I was thinking £1k each a week would be £9k, plus materials at about £4k but looking at the price per sqm and the overall work it now seems okay?