DeRosier Excavation is a family owned excavating company in Kelso, WA that specializes in all foundation, drainage, and earth-moving projects. We have been in business for several years and are confident that our service will surpass your expectations, and deliver the kind of work that will make you a lifetime customer.Our exceptional work includes:? Site preparation? Road building? Land clearing? Slide repair? Rock walls? Dump trucking* DrainageAll our work is guaranteed, so if you aren't satisfied with our job, we will work hard to make it right for you. Please feel free to contact us for a list of references to suit all your building and work needs and see how satisfied our clients are. We offer free estimates, so give us a call today.