I’ve been doing some site work recently. Site managers are hardly there. They juggle as many jobs as they can to make the money. If it’s crap weather they will rarely come out and check things. Not sure what it’s like on the bigger sites. Lad I work for checks everything we do so there’s no come back. On the bigger sites the lads have to be quick to make money so the only thing that can give is standards. On the other hand, I have seen people who are getting paid way over the odds but they just don’t care about their quality of work. The quality of some of the new builds both design and constr