Looking for a basement contractor in Gratis, OH? Describe your project once and up to three basement contractors who work in Gratis and Preble County get back to you with a quote. It's free and there is no obligation.
Gratis is home to about 835 people (2024 Census Bureau estimate), a stable community (−0.6% since 2020). With 860 people per sq mi, it is a semi-rural area. Full basements are common here and often the cheapest way to add living space.
Gratis at a glance
- Population (Census Bureau estimate, 2024)
- 835 (−0.6% since 2020)
- Rank in Ohio
- 561st of 923 cities and towns
- Land area
- 1.0 sq mi
- Population density
- 860 people per sq mi (semi-rural)
- Type
- Village (Gratis village)
- Main county
- Preble County
What to check before hiring in Gratis
- Moisture first: waterproof before finishing.
- Egress: in Ohio, 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 Gratis
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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 Gratis
How much does basement finishing cost in Gratis, OH?
It depends on size, bathroom and finishes. Describe your basement: contractors who serve Gratis 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 Gratis 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.