Sewer Line Repair & Installation

Whether you are trying to connect your pipes to the public sewer system or have sprung a leak in your septic system, we are ready and available to help you. Hillis Construction and Septic, LLC is proud to offer years of experience in the industry towards repairing and installing sewer lines for your home or commercial space. Busted pipes can cause a world of trouble and safety issues, so please be sure to contact us right away the moment you are experiencing a problem. Our sewer line services include the following and more:


  • Inspections
  • Repairs
  • Replacements / Installations
  • Chemical Root Treatment
  • Trenching


For a complete list of services available, or to schedule services for sewer line repairs or installations in Portland, OR, give us a call today.

Excavation Services

Hillis Construction and Septic, LLC is eager to provide professional services for your excavation service needs. This work involves advanced equipment and professional knowledge, so leave the task to us. We will help you with the following:

  • Dig outs
  • Sewer Hook Ups
  • Drain Systems
  • Trenching
  • Hole Drilling
  • Parking & RV Pads
  • Land Clearing
  • Grading
  • Retaining Walls
  • Concrete REmoval
  • Sidewalk Repair
  • Basic Landscaping
  • Salvage/Recycle
  • Sewer Line Video Inspection
  • Septic System Installs and Repairs

Contact us today if you live in or near Portland and are looking for professional excavation services.

Building Additions

For your home, office, barn or other structure

Hillis Construction and Septic, LLC is a team of professional contractors and technicians who can’t wait to help you fulfill your home expansion visions. Our building additions are fast, professional, and will always exceed your expectations. We are experienced and available to help you with the following aspects of your next addition project:


  • General Contracting
  • Build-outs
  • Flooring
  • Piping
  • Excavations
  • Drywall Installation
  • Plumbing
  • And More


We are fully licensed and insured, as well as committed to providing you a wonderful expansion service with a seamless finish, so contact us today for services in or near Portland, Oregon.

Pole Barns, Horse Arenas, & More

Finding a great contractor is no easy feat. Finding a great contractor for specific construction projects, such as for pole barns and horse arenas, is ever harder. Luckily, Hillis Construction and Septic, LLC specializes in the construction of post-frame buildings. Over the years, our team has found that these buildings are great for:

  • Storage
  • Workshops
  • Garages
  • Horse or Cow Barns
  • Horse Arenas
  • And More


If you live in Portland and are seeking a professional contractor for a post-frame building, contact Hillis Construction and Septic, LLC today.

Eco Friendly Services

We Do Our Part

Now more than ever, it is so important to work with environmental caution. We at Hillis Construction understand this, and do our part to practice eco-friendly techniques in the workplace.


Some of these practices include:


  • Recycling metals and other materials
  • Reusing materials where possible
  • Use sustainable materials
  • Installation of water-saving fixtures


If you have any questions about our company and its green techniques, then don’t hesitate to give us a call.