you're right there, a painter/decorator told me today that a builder he works for has a polish guy doing all the trades for him, plumbing , tiling, plastering and electrics, and that's after he finishes his factory job at 2p.m. :yikes:
In my part of the country, most builders have failed to pay all the genuine tradesmen - i.e. they commission work then just dont pay. So many of them are unable to sub-contract genuine plumbers, electricians, plasterer and tilers, because they have all been ripped off by the builders recently. So the builder continues to win contracts(!) but now uses Bobskivana the Lithuanian strawberry picker who once wired a plug for his uncle and dobs and dabs floor tiles over the 2.5mm T & E he used to wire in the 40Amp cooker......