I do the form work and the dirt work. I dig the footers, and I pour the concrete. There is no subcontracting. This prevents you from having to pay two or three different people for one project.
I have over 35 years of experience doing concrete work. I guarantee all my work. If there is a problem, I will fix it. I can't think of any time I've really seen a problem with my work. But, if there was a problem, I would take care of it.
I don't like problems, so I do my best to do it right the first time. It always turns out better when it's done right the first time.