Looking for a basement contractor in Wisconsin Dells, WI? Describe your project once and up to three basement contractors who work in Wisconsin Dells and Columbia County get back to you with a quote. It's free and there is no obligation.
Wisconsin Dells is home to about 3,157 people (2024 Census Bureau estimate), a growing community (+7.1% since 2020). With 403 people per sq mi, it is a semi-rural area. Full basements are common here and often the cheapest way to add living space.
Wisconsin Dells at a glance
- Population (Census Bureau estimate, 2024)
- 3,157 (+7.1% since 2020)
- Rank in Wisconsin
- 211th of 607 cities and towns
- Land area
- 7.8 sq mi
- Population density
- 403 people per sq mi (semi-rural)
- Type
- City (Wisconsin Dells city)
- Main county
- Columbia County
What to check before hiring in Wisconsin Dells
- Moisture first: waterproof before finishing.
- Egress: in Wisconsin, a basement bedroom needs an escape opening.
- Radon: test before you finish.
- Price drivers: size, bathroom, ceiling height, finishes and egress.
Useful official resources
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ICC: International Code Council
Official information and guidance.
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EPA: radon
Official information and guidance.
Services available in Wisconsin Dells
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Basement finishing
Framing, insulation, electrical, drywall and flooring of a basement, with permit.
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Basement bathroom or rental unit
Bathroom, kitchenette or legal basement unit with egress and plumbing.
Frequently asked questions in Wisconsin Dells
How much does basement finishing cost in Wisconsin Dells, WI?
It depends on size, bathroom and finishes. Describe your basement: contractors who serve Wisconsin Dells reply with a quote.
How long does it take?
Often several weeks.
Can I rent it out?
Only if local rules allow an accessory unit; check zoning.
Which basement contractors will contact me?
Up to three independent basement contractors who serve Wisconsin Dells and the surrounding area, chosen for the service you need. Your details are shared only with your consent.
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2024) and Gazetteer Files (public domain), imported on 10/31/2026. Figures describe the incorporated place or county as published; they are shown for information only.