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.

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.
We have the right tools to get the job done efficiently and safely:
Wolff Underground
Appleton, Wisconsin, United States
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