Ask for referrals: a successful contractor will have many referrals for the type of work that you are requesting that encompass both past and recent projects. Tip
Ask about training, education, and certifications: concrete placement requires a great deal of experience and understanding, as there are many placement and finishing techniques that can compromise the structural integrity of the project. Ongoing education and training provides security that your contractor is well learned on the hazards of improper techniques and that your project will not become a nightmare.