Looking for a basement contractor in North Topsail Beach, NC? Describe your project once and up to three basement contractors who work in North Topsail Beach and Onslow County get back to you with a quote. It's free and there is no obligation.
North Topsail Beach is home to about 1,081 people (2024 Census Bureau estimate), a growing community (+7.5% since 2020). With 174 people per sq mi, it is a semi-rural area. Full basements are common here and often the cheapest way to add living space.
North Topsail Beach at a glance
- Population (Census Bureau estimate, 2024)
- 1,081 (+7.5% since 2020)
- Rank in North Carolina
- 328th of 549 cities and towns
- Land area
- 6.2 sq mi
- Population density
- 174 people per sq mi (semi-rural)
- Type
- Town (North Topsail Beach town)
- Main county
- Onslow County
What to check before hiring in North Topsail Beach
- Moisture first: waterproof before finishing.
- Egress: in North Carolina, 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 North Topsail Beach
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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 North Topsail Beach
How much does basement finishing cost in North Topsail Beach, NC?
It depends on size, bathroom and finishes. Describe your basement: contractors who serve North Topsail Beach 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 North Topsail Beach 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.