Check the references of the trades people and check if the work has been done the standard you expect. The rating model of Thai Do It is a great tool to compare references of trades people.We ask each of the pincipals to – upon completion of the job – provide a reference via a series of each questions. In addition they are able to enter a motivation for their rating. When you need to have a big job done, it sure pays to visit one or two of the jobs that have been given as a reference. That way you will have a crystal clear idea about the trades person you would like to use.