Your Local

Portland Excavation Company

Superior Underground is your local choice for professional excavation services! We provide a number of different services in regards to meeting different excavation needs, including trench-less options to address existing obstacles. We specialize in residential and commercial sewer repair and replacement, water line replacement, and other services. If you have roots, a break, separation, or need a full replacement of your sewer lines, we can handle it all. With plenty of experience and the right equipment, we can handle any job, big or small. We work weekly on residential homeowners’ properties, large commercial properties, and on both city and county streets. Our services also offer freshwater line installations for new and existing homes or businesses, which can be trenched but most of these are installed via directional drilling. We can drill all different sizes of water lines depending on what you are looking for. Have questions for us about any of our services? Just give us a call and ask how we can help you today!

Drainage System Services

Superior Underground are the local experts in drainage systems and achieving the maximum water flow you need for your residential or commercial property. We handle all types of systems, and we’re happy to discuss the best options for your individual drainage issues. Some of our specialties include:

  • French Drains

  • StormTech

  • Catch Basins

  • Dry Wells

  • Grease Interceptors


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Not Your Average

Excavation Contractor

We wont forget the Site Prep & Cleanup

Superior Underground does new construction dig-outs for homes, ADU’s, shops, small commercial buildings, and more. We provide these services based on plans provided by your general contractor or individual homeowners. We have laser level technology to ensure proper grading and leveling is achieved every time. We also offer light demo work and removal of debris from residential and commercial properties. We can handle sheds, outhouses, garages, and small buildings, as well as small hauls of yard debris, wood, metal, misc. material. We also do minor grading and sloping on properties for all kinds of situations. New home builds, property clearing and leveling, drainage issues, and parking lot prep and extensions.