Hi bambam
Welcome to Poms in Oz.
It is not crusial to have formal qualifictions in bricklaying in order to get aan employer-sponsored visa as a bricklayer.
However, without the formal qualifications it is not possible to obtain a positive skills assessment. Without the skills assessment, the only route to eventual
PR would be to spend 2 years on a temporary subclass 457 visa first.
Because the s/c 457 visa only grants Temporary Residence in Oz, 457 visa holders are excluded from a lot of "perks" which Permanent Residents can take for granted.
Please see this article by Alan Collett of Go Matilda:
Go Matilda - Your Gateway to Australia - News
Study both the article and the links contained in it
carefully and thoroughly, I suggest.
At 33, Hubby would have plenty of time in which to get the necessaru formal qualifications etc before considering applying for a visa. If he gets the qualifications etc in the UK, he would have a wider range of visa-options at the end of the day.
Best wishes
Gill