Quote for front lawn and rear garden overhaul

G3ralt

Hello,
In need of advice regarding a quote we have received for work in our front lawn and rear garden.
Our rear garden is about 350 -370 square metres and front lawn is about 35 square metres. The work involves removal of shrubs, old sheds and some rubbish, laying new grass turf, planting conifer hedging, new flower beds, rockery, decorative and flowering plants, jet washing and de-mossing patio etc. The work requires a digger as some areas had a LOT of brambles which have been cut to ground level by the tree surgeon and now need to be completely cleared out and prepped for new turf.
We have received a quote of £17000 for everything including removals. We live in Surrey, London travel zone 6.
How does this quote sound? 

Thanks in advance.