Looking for a basement contractor in Chambersburg, PA? Describe your project once and up to three basement contractors who work in Chambersburg and Franklin County get back to you with a quote. It's free and there is no obligation.
Chambersburg is home to about 23,041 people (2024 Census Bureau estimate), a growing community (+5.2% since 2020). With 3,327 people per sq mi, it is a suburban area. Full basements are common here and often the cheapest way to add living space.
Chambersburg at a glance
- Population (Census Bureau estimate, 2024)
- 23,041 (+5.2% since 2020)
- Rank in Pennsylvania
- 24th of 1,013 cities and towns
- Land area
- 6.9 sq mi
- Population density
- 3,327 people per sq mi (suburban)
- Type
- Borough (Chambersburg borough)
- Main county
- Franklin County
What to check before hiring in Chambersburg
- Moisture first: waterproof before finishing.
- Egress: in Pennsylvania, 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 Chambersburg
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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 Chambersburg
How much does basement finishing cost in Chambersburg, PA?
It depends on size, bathroom and finishes. Describe your basement: contractors who serve Chambersburg 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 Chambersburg 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.