This is one important factor that should be at the forefront of your search. You want someone that has what it takes in terms of education, licensing and experience to be a contractor. "License and permit demonstrate that the contractor is qualified to handle the job and in compliance with the local building requirements. While unlicensed contractors might tend to charge less, don't fall for it. It might end up making you happy and even lead to fines if the building doesn't meet the requirements code, Luiz Phillippe Gommez says. You want someone that is trustworthy, licensed and insured, skilled and experienced. If your contractor meets all the requirements, it's time to go ahead.