How do customers find the right tradesmen? Well some people get three or more estimates, and some use people they know. But it all comes down to this ..... most people want a good quality job doing at a fair price, but to add to that I think it also about the person and how you feel about them sometimes it can be the right price but you don’t feel comfortable with the person.  
So right person, right price, good quality of work = the right tradesman.