in oz even if your qualified in a building trade like myself a bricklayer, you still have to retrain for there qualifications they have the same H&S crap to put up with as well (hard hats no shorts etc), which is why i dont think any building trade is actually better than window cleaning.
i earn better money
i work less hours
my job is regular and safer
im the boss
i have freinds out in oz and they earn a living but not loads of money as things are biting there too, ive also worked in florida and detroit in usa and found that tradesmen are more repected as skilled workers but again money was ok but not great ($15 an hour in florida, $30in detroit)
once established for its hard to beat this game