About Us

About Us 2017-09-11T15:08:12+00:00

Black Rock Underground LLC - Trenchless Sewer Repair Services

Black Rock Underground, LLC is the expert in trenchless sewer repair and #1 Local Sewer Services Company in all of  the Portland, OR Metropolitan area. Black Rock Underground LLC uses state of the art sewer inspection and repair equipment technology. Our crew are highly skilled and experienced.

We are able to provide affordable, fast and professional sewer services to our valued customers in all of Portland, Oregon Metro. Our advanced equipment and highly experienced crews can handle any size sewer repair jobs for home owners, commercial, industrial, and municipal customers. When you want the job done affordably, quickly, clean, and professionally just pick up the phone and call the experts at Black Rock Underground LLC.

Contact the trusted local experts 1-503-747-9312.


Quality Service Guaranteed

Black Rock Underground

Black Rock Underground, LLC are industry leaders in trenchless technology. Our technicians are highly skilled and trained to get the job done.

We have been helping diagnose, repair and replace sewers in the Portland metro area for over a decade.

We’ll work with you to diagnose and develop plan to help keep your home sewer lines healthy.



Why Choose Us?

  • When you call, you’ll speak with a professional, not a machine.
  • Our technicians are courteous and well-trained. We’ll explain our solutions so you can understand them.
  • We use the latest technology which saves you time and money.
  • Our prices are fair and honest.
  • We have over a decade of experience.
  • We are a Registered Side Sewer Contractor.


Call Black Rock Underground, LLC today 1-503-747-9312.