We've just had the prices in for a small extension one storey, and taking out old attic stairs and putting in proper stairs. Also outside paving.
£120K.....
The cheapest quote was £10K less than that from a builder who'll be doing 8 to 10 extensions at once. The £120K quote was a builder who'll be doing ours and maybe one other. Smaller team - but they'll be on our job. 6 weeks shorter time as well.
I'm tempted to go for the second one as we know work he's done.