Looking for a demolition contractor in Janesville, WI? Describe your project once and up to three demolition contractors who work in Janesville and Rock County get back to you with a quote. It's free and there is no obligation.
Janesville is home to about 66,428 people (2024 Census Bureau estimate), a growing community (+1.2% since 2020). With 1,918 people per sq mi, it is a suburban area. Teardowns of older homes and removal of damaged or unused buildings are the usual demolition jobs here.
Janesville at a glance
- Population (Census Bureau estimate, 2024)
- 66,428 (+1.2% since 2020)
- Rank in Wisconsin
- 10th of 607 cities and towns
- Land area
- 35 sq mi
- Population density
- 1,918 people per sq mi (suburban)
- Type
- City (Janesville city)
- Main county
- Rock County
What to check before hiring in Janesville
- Permit: in Wisconsin, demolition permits are issued by the city or county, often after utilities are disconnected.
- Asbestos: have a survey done first and keep the report for the permit.
- Debris: ask about disposal fees and recycling.
- Price drivers: size, materials, foundations, access and disposal.
Useful official resources
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EPA: asbestos
Official information and guidance.
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Call 811
Official information and guidance.
Services available in Janesville
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House or building demolition
Full demolition with permits, utility disconnections, debris removal and site cleanup.
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Interior or partial demolition
Selective demolition before a remodel, or of an outbuilding.
Frequently asked questions in Janesville
How much does demolition cost in Janesville, WI?
It depends on the size and materials of the building, the foundation and disposal. Describe your project: contractors who serve Janesville reply with a quote.
How long does it take?
A house often comes down in a few days once permits are in place.
Who disconnects the utilities?
The utilities themselves, at the owner's or contractor's request, before the permit is issued.
Which demolition contractors will contact me?
Up to three independent demolition contractors who serve Janesville 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.