I couldn't agree more with what Ken has told you. Keep knocking, and sooner or later you will get lucky. It takes on average 11 no's to get 1 yes, so badger the local contractors till you are blue in the face but don't overdo it, once a month or so will suffice. At least they will get to know your name they will have the impression that you are keen and eager, its just a matter of getting the lucky break. If they are aware that you are available for work, and they know of you then it may well save them a fortune in advertising and interviewing when a position comes available. Once you do get work then do the polite thing and contact all the other companies you have been in touch with just out of curtesy to let them know you have found employment.
Cheers...........Howard
Cheers..........Howard