The Driftless Area, Wisconsin
Know your ground.
Snow load and footings for all 72 Wisconsin counties, permit rules for 30 cities, and the state’s licenses, read at the source with the date we read it, and the pros we’d send you to.
The same ground, cut open
What the code asks of a Wisconsin house
Two rules in the Uniform Dwelling Code shape every house here: how much snow the roof must carry, set by zone, and how deep a footing goes, the same everywhere. Pick a county.
- Roof snow load
- Ask the inspector Map reads Zone 2, 30 lb per sq ft
- Footings
- 48 in. at least or below frost if deeper · SPS 321.16(1)(a)
Snow load read Oct 16, 2026 from UDC Figure 321.02 (Register, Nov 2024); footing rule read Oct 16, 2026. Counties were placed by reading the scanned zone map; the 21 counties the line touches say “ask the inspector” until DSPS confirms. Regions are our own grouping. All 72 counties
Trades
What are you building?
Five trades with a directory of ours behind them, and two we cover with guides while we see who’s searching. Where we have no directory, the guide gives you the hire-it-yourself kit: the license to ask for, your city’s permit rule and the questions to ask.
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Concrete & flatwork
Footings below 48 in., control joints, road salt and freeze-thaw.
Fox Valley Concrete · Badger Flatwork -
Basements & waterproofing
Spring thaw and wet walls.
Badger Basements -
Trees
Oaks, oak wilt and storm damage.
Fox Valley Arborist -
Gutters
Ice dams and downspouts.
Fox Valley Gutters -
Epoxy floors
Road salt, hot tires, cold slabs.
Fox Valley Epoxy -
Roofing
Snow load, ice dams, the permit.
Guide only, no directory yet -
Heating & cooling
The furnace before the cold.
Guide only, no directory yet
Permits
Does it need a permit?
Pick a job and a city. The answer is stamped with the city and the date we read its rules; open any row for what the city’s page says. 30 cities, judged for a single-family home.
I want to in .
Permit needed.
Appleton: five jobsOutagamie County · open a row for what the city’s page says
The tables
Every row has a source and a date
Each table links to the page it was read from. Where we could not confirm a rule, it says so and sends you to the people who can.
- Snow load72 countiesRoof snow load by county, and the one statewide footing rule. 21 counties on the zone line say “ask the inspector”.UDC Figure 321.02 · read Oct 16, 2026
- Permits30 citiesRoof, driveway, deck, basement and fence, each read from the city’s own pages, with the quote.City pages · verified Oct 17, 2026
- Radon72 countiesEPA radon zones (1993 map), county averages. Test your own home.EPA · read Oct 16, 2026
- Licenses11 credentialsWhich trades need a state license, and how to look a contractor up at DSPS.DSPS · read Oct 17, 2026
City pages
There is no county frost-depth table
Wisconsin sets no county frost-depth table. One rule applies everywhere. Footings go at least 48 in. below grade, or below the frost if it goes deeper (SPS 321.16(1)(a)). Anyone quoting “the frost depth for your county” is guessing.
Before you dig, call 811
Wisconsin law asks anyone digging to give the one-call system notice at least 3 working days before the work starts: fence posts, deck footings, a new walk.
Wis. Stat. 182.0175(2)(am)1 · read Oct 17, 2026
The Wisconsin year
Book the work before the season
Each season breaks something different. Tap a month; the triangle marks where we are now.

WinterDec–Feb · now
Ice dams at the eaves, snow on the roof, frozen pipes in outside walls.
- Know what your roof was built to carry: 40 lb of snow per sq ft in Zone 1, 30 in Zone 2. UDC Figure 321.02
- Keep downspouts clear so meltwater runs away from the foundation.

ThawMar–Apr · now
Wet basements, sump pumps running, frost heave on walks and stoops.
- Test the sump pump before the snow melts.
- Leave oaks unpruned from April through July, when oak wilt spreads most. Wisconsin DNR, Oak wilt

Build seasonMay–Sep · now
Footings, driveways, decks and garage floors, while the ground is open.
- Call 811 at least 3 working days before anyone digs. Wis. Stat. 182.0175(2)(am)1
- Footings go at least 48 in. down, or below the frost if deeper. SPS 321.16

Freeze-upOct–Nov · now
Trees before the snow, gutters after the leaves drop, the furnace before the cold.
- Pour footings and slabs before the ground freezes: footings may not go on frozen material. SPS 321.16
- Oaks are safer to prune now than in spring; the high-risk window is April through July. Wisconsin DNR, Oak wilt
- Book the furnace check before the first cold snap.
Field guides
Read before you hire
- GuideFocus on Energy Rebates in Wisconsin: Furnaces and Heat PumpsFocus on Energy rebates in Wisconsin for furnaces, heat pumps and insulation: what the program offers and how to claim, with the checked date.
- GuideFrost Depth in Wisconsin: The 48-Inch Footing RuleFrost depth in Wisconsin is one statewide rule: footings go below frost or at least 48 inches deep. There is no county frost table.
- CostFurnace Replacement Cost in Wisconsin (2026): What Homeowners PayFurnace replacement cost in Wisconsin: what drives the price in a cold climate, the HVAC credentials to ask for, and rebates.
- LicenseGeneral Contractor License in Wisconsin: What You NeedDoes Wisconsin have a general contractor license? What DSPS certifies instead, which trades need a state license, and which do not.