920-738-1880

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    • Water Lines
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  • Trenching + Boring
    • Horizontal Boring
    • Trenching
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  • More
    • Home
    • Pipe & Sewer Services
      • Residential Cleaning
      • Commercial / Industrial
      • Agricultural
    • Excavating
      • Sewer Repairs
      • Water Lines
      • Hydro Excavation
      • Excavating
    • Trenching + Boring
      • Horizontal Boring
      • Trenching
      • Underground Drainage
    • Project Gallery
    • About Us
    • Contact Us
    • Careers

920-738-1880

  • Home
  • Pipe & Sewer Services
    • Residential Cleaning
    • Commercial / Industrial
    • Agricultural
  • Excavating
    • Sewer Repairs
    • Water Lines
    • Hydro Excavation
    • Excavating
  • Trenching + Boring
    • Horizontal Boring
    • Trenching
    • Underground Drainage
  • Project Gallery
  • About Us
  • Contact Us
  • Careers

Trenching Services in Northeast Wisconsin

Wolff Underground provides reliable trenching services for residential, commercial, industrial, and agricultural projects across Appleton, Green Bay, Oshkosh, Clintonville, and the greater Fox Valley. With over 30 years of experience, we deliver safe, precise trenching solutions for water lines, sewer systems, and utility installations.

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Trenching Services for Contractors & Utilities

At Wolff Underground, we handle all types of trenching projects — from electrical and gas lines to cable, conduit, and more. If it needs to be trenched, we can do it.


We’re looking to partner with electrical, plumbing, heating and cooling, and other contractors who need reliable trenching support. Let us take care of the underground work so you can stay focused on your specialty.

What We Can Trench

  • Electrical lines
  • Gas lines
  • Cable and internet lines
  • Conduit systems
  • Any other underground utility or service line


Our EquipMENT

We have the right tools to get the job done efficiently and safely:

  • Skid steer with 48" trencher attachment — perfect for larger utility runs
  • Walk‑behind trencher with 30" bar — ideal for tighter spaces and smaller projects
  • Mini excavators (various sizes) — versatile for residential, commercial, and agricultural sites
  • Hydro excavator — non‑destructive option for sensitive utility exposure
  • Horizontal boring machine — trench‑less solution for boring under driveways, sidewalks, patios, and barns

  • Home
  • Residential Cleaning
  • Commercial / Industrial
  • Agricultural
  • Sewer Repairs
  • Water Lines
  • Horizontal Boring
  • Trenching
  • Underground Drainage
  • Project Gallery
  • About Us
  • Contact Us

Wolff Underground

Appleton, Wisconsin, United States

920-738-1880

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