HMV and 19 yr old son. Advice please

Ok so he's 19. Lives is shared accomodation and as you know could well be out of a job by tomorrow. So we are confused, we believe he can claim JSA. But can he get any help for housing as he is under 25 ( i think shared acc is for 25-35). We have no room for him back here (there are four of us in a 2 bed house). No other family.

Any advice please would be most welcome.