Increasingly, projects in the DMV require permitting and engineering, particularly if they involve walls at a certain height and sediment control. All permitting and engineering is the responsibility of the client. Johnson’s does offer permitting and engineering assistance for a fee because it is so challenging for homeowners. We work with specific permitting companies and engineers to get your project done. If you get another contractor who says your walls or sediment control won’t involve permitting, it’s a red flag.