Wolff Underground provides trusted sewer repair and replacement services for homeowners and businesses across Appleton, Green Bay, Oshkosh, Clintonville, and the greater Fox Valley. With over 30 years of experience, we deliver cost‑effective solutions that minimize disruption and protect your property.
Pipe bursting is the most advanced and affordable way to replace damaged sewer lines. Instead of digging up your entire yard, we pull a brand‑new pipe through the existing line using 30 tons of pulling force.
Why choose pipe bursting?
How it works:

We pulled a new sewer line through old orange berg and clay tile pipe using pipe bursting method. We dug a small hole and avoided most of the parking lot.
We start with excavating a pit in the street and a pit in the basement. After both are safely excavated and the holes are ready, we fuse 4" HDPE pipe together until we have the right length. Next we run the cable through the sewer and hook it up to our bursting machine. Then the machine uses 30 ton of pulling force to pull the new HDPE pipe through the old sewer. Now we make our connections and backfill the holes.

Not every sewer line needs full replacement. With our advanced camera inspections, we can locate the exact spot of damage and perform a targeted repair.
Benefits of spot repairs:

When excavation isn’t ideal, pipe patching offers a no‑dig solution. This resin‑based product is inserted into the damaged section of pipe and cured in place, forming a smooth, round patch that bonds to the existing pipe.
Advantages of pipe patch repair:
Wolff Underground
Appleton, Wisconsin, United States
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