You may find that your local Age Concern office has a list of reputable trades and handymen. Our local one does, and I think they are pretty reliable. We dont personally use them, though I was once instrumental in selecting such persons. I seem to be the resident one in our household. My constant list indicates I will be 'kept on' for sometime yet! Get a price for any work to be done, and don't pay 'up front'. You know this anyway.