Gu-Wi Gutters & Windows is a family-owned exterior cleaning company that has been serving clients in the Seattle and Portland area since 2007. With over 16,000 customers served, we are proud to call ourselves one of the very best when it comes to gutter and window cleaning. Contact us today for more information! No charge until you are 100% satisfied! We get rid of the ooey-gooey so you don't have to! Free quotes for the following services: Gutter Clearing, Gutter Repair, Window Cleaning.