Seattle Underground Sewer is a side sewer contractor registered in Maple Valley. It repairs damaged sections of side sewer, replaces lines that are too far gone to patch, and lines pipes from the inside where the situation allows. It explains that excavation is right for some lines and lining for others. It also addresses water line problems between the street and the house.
It works anywhere within 25 miles of central Seattle, naming Seattle, Bellevue, Renton, Kirkland, Redmond, Shoreline, Kent and Burien. Service hours are Monday to Saturday, 7 am to 7 pm, with 24/7 emergency response. It publishes its contractor registration number on its site.