Its all very well if you got bundles of work.There is good money in the building trade.The bloke i used to work for is minted,he takes on large projects,new builds etc.But he is constantly stressed out.On the other side of the coin is my mate mick,who takes home £100 a day working for a company bricklaying.He works hard all day for that.To make it in building means constantly seeking new work,forking large amounts on materials,the chance of being knocked for your money,and at times stress.Windows are easy,and you can earn a few quid out of it if you make the effort.