But the Australians aren't stupid and have also set limits
> on hourly rates and mark up profits on supplying materials.
> Or in other words, they are all the same at doing the job,
> but if one is more expensive than another, they don't stay
> in business very long because they don't get any work to do.
My underlying question was whether the need to be qualified had generated a shortage thus leading to a rise in prices. In London because there's more than enough work you can pay £45 (A$120) per hour for a decent plumber or electrician, whether formally qualified or not. For the most part they are not really competing on price: how soon they can do it tends to be more significant.