Any person who does more than supply furnishings made or constructed by another manufacturer – whether they’re applied inside or outside a residential or commercial property, will require a general building contractor license to avoid being fined for the work; no matter how well it turns out. Although this is a basic and all-encompassing rule that extends nationwide; there are other general contractor requirements with which a builder must become familiar. These can vary from state-to-state. The license isn’t only required to legally build and construct, but also for less-intensive projects such as painting and electrical repairs. Read more.