Basement Finishing in South Jersey
Turn an unfinished basement into a family room, home office, gym or guest suite. MatrixGC finishes basements across Camden, Burlington and Gloucester counties, starting with moisture control and ending with a basement that passes inspection.
- Licensed & insured
- NJ permits handled
- Design-build, one team
- 203(k) & renovation financing
Dry first: moisture comes before finishes
Many South Jersey basements sit in sandy soil with a high water table, especially in low-lying parts of Camden and Burlington counties. Before we frame a wall, we check for moisture and fix it, because finished walls over a damp foundation grow mold.
- Moisture check on walls and slab before design.
- Sump pump and drainage where water collects.
- Vapor barrier and insulation rated for below-grade walls.
- Moisture-tolerant flooring such as luxury vinyl plank.
What basement finishing costs
A typical contractor-led basement finish runs about $30 to $75 per square foot. A basic finish (framing, insulation, drywall and flooring) can start around $15 per square foot, while a full living suite with a bathroom and kitchenette can reach $75 to $120 or more. Adding a bathroom usually adds $10,000 to $25,000.
Basement finishing cost calculator
Choose your options for an instant ballpark price, then ask us for a free written estimate.
Popular basement layouts
- Family and media rooms with recessed lighting and built-ins.
- Guest or in-law suites with a bedroom, egress window and full bath.
- Home office and gym with sound insulation.
- Wet bar or kitchenette for entertaining.
Code basics for a finished basement in New Jersey
- Egress: a sleeping room needs an emergency escape window or door.
- Ceiling height: habitable space needs enough headroom, with allowances for beams and ducts.
- Smoke and CO alarms: required, and interconnected in many cases.
- Permits: framing, electrical and plumbing work need a construction permit from your town.
Our basement process
Free estimate
We check moisture, measure and talk layout.
Design
Layout and finishes you approve.
Permits
Filed with your town's construction office.
Build
Framing, systems, drywall and flooring, usually 4 to 8 weeks.
Final inspection
Certificate of approval.
Permits and sales tax in New Jersey
In New Jersey, work that touches structure, electrical, plumbing or mechanical systems generally needs a permit from your town's construction office under the NJ Uniform Construction Code. We prepare the drawings, file the permit and schedule the building, electrical and plumbing inspections.
New Jersey treats most permanent home improvements as capital improvements, which are exempt from sales tax on the labor when the homeowner signs Form ST-8. We give you the form with your contract.
Towns we serve in South Jersey
Cherry Hill
Haddonfield
Collingswood
Voorhees
Marlton
Moorestown
Mount Laurel
We also work in Pennsauken, Haddon Township, Audubon, Washington Township, Deptford and nearby towns, usually within about 30 minutes of the Ben Franklin and Walt Whitman bridges. See all South Jersey remodeling services.
Get a free basement estimate
Tell us about your project. We reply within one business day to set up a free visit.
Basement Finishing FAQ
How much does it cost to finish a basement in South Jersey?
Most basement finishes cost about $30 to $75 per square foot, so an 800 sq ft basement is about $24,000 to $60,000. Bathrooms, egress windows and waterproofing add to that.
Do I need a permit to finish a basement in NJ?
Yes. Framing, electrical and plumbing work in a basement need a construction permit from your town. We file it and schedule the inspections.
How long does basement finishing take?
Most basements take 4 to 8 weeks of construction after permits are issued.
Can you add a bathroom in my basement?
Yes. If your main sewer line is above the basement floor, we use an upflush or ejector system.
Do you finish basements in Philadelphia too?
Yes. See Philadelphia basement remodeling.
Related South Jersey services
203k contractor · Home additions · Basement finishing · Deck builders · Kitchen remodeling · Bathroom remodeling · All South Jersey services