what union do builders join?

[Tortington]

my dh not a builder - works for a building company - he's golden boy at the mo - but someone just got suspended - he was a twat - but he didn't get written warning - and i thought you had to have this?

so this has made me think that he needs to join a union in case things go tits up in future.
forever the pessimist me.

ta

i rang my dad to ask him but bless him he couldn't remeber(union man)
pretty sure it's the transport and general workers union.
if not they would know who it is.

thanks 2 shoes
xxx