Hiring an excavation contractor in Wisconsin
Gradeline lists 1,607 excavating and site work contractors in Wisconsin across 70 counties. This guide covers the Wisconsin rules that affect a dig: frost depth and 811 notice through Diggers Hotline (Wisconsin).
What to know before you hire in Wisconsin
4.5★
Know what a good rating looks like here
Wisconsin contractors average 4.5 stars on Google. Shortlist crews at 4.5 or better with a solid review count (247 qualify), and treat anything under 4.0 as a red flag.
60 in
Footings go below the frost line
Frost reaches about 60 inches in Wisconsin. Any bid for footings, foundations, or buried lines should dig at least that deep. If the depth is not written in the quote, ask.
2 days
Utilities get marked before digging
Wisconsin law requires 2 business days notice to 811 (Diggers Hotline (Wisconsin)) before any digging. Ask whether your contractor files the request, and plan the start date around the wait.
32%
Most listed contractors have no website
Only 32% of listed Wisconsin contractors run their own site. Judge them on reviews, photos, and years in business rather than web polish, and get at least three written quotes.
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Get free quotesArea-specific FAQ
How far in advance do I need to call before digging in Wisconsin?
At least 2 working days. Diggers Hotline (Wisconsin) takes locate requests statewide and has underground utilities marked before any excavation. Hitting an unmarked gas or power line can injure the crew and lead to costly repairs.
How deep do footings need to be in Wisconsin?
In Wisconsin, footings typically need to extend below the frost line, which is around 60 inches here. A local contractor will confirm the code requirement for your site.
When is the best time of year to dig in Wisconsin?
The frost line in Wisconsin is around 60 inches, so the ground freezes hard in winter. Most digging happens from spring through fall, once the thaw dries sites out.
