Washington’s Leading Expert on Trees and Tree Roots

Brian Holers is the Founder of Root Cause Seattle. He has been providing tree services since 1987. He has been an ISA Certified Arborist since 1997. Root Cause specializes in underground tree services. We provide tree protection on construction sites, root pruning for sidewalk repair, and are certified porous pavement installers. If you have any issues related to trees and their roots, we be happy to help solve your problem. Root Cause Seattle, tree care above and below ground.