Looking for a basement contractor in Bath, IL? Describe your project once and up to three basement contractors who work in Bath and Mason County get back to you with a quote. It's free and there is no obligation.
Bath is home to about 265 people (2024 Census Bureau estimate), a shrinking community (−4.0% since 2020). With 727 people per sq mi, it is a semi-rural area. Full basements are common here and often the cheapest way to add living space.
Bath at a glance
- Population (Census Bureau estimate, 2024)
- 265 (−4.0% since 2020)
- Rank in Illinois
- 1,040th of 1,294 cities and towns
- Land area
- 0.4 sq mi
- Population density
- 727 people per sq mi (semi-rural)
- Type
- Village (Bath village)
- Main county
- Mason County
What to check before hiring in Bath
- Moisture first: waterproof before finishing.
- Egress: in Illinois, 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 Bath
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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 Bath
How much does basement finishing cost in Bath, IL?
It depends on size, bathroom and finishes. Describe your basement: contractors who serve Bath 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 Bath 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.