Basement Renovation · NYC
Basements built for real life below grade.
Turn a damp, unused basement into your favorite room in the house — waterproofed, permitted, and finished by one licensed team.
What's included
Every basement project starts with moisture control and ends with finishes that feel like the rest of your home.
- Interior & exterior waterproofing with lifetime membranes
- Egress windows and code-compliant bedrooms
- Framing, insulation, drywall, and moisture-resistant flooring
- Home theaters, gyms, guest suites, and in-law apartments
- Wet bars, kitchenettes, and full basement bathrooms
- Sump pumps, dehumidification, and radon mitigation
Popular basement builds
Home theater & lounge
Sound-treated walls, projector wiring, tiered seating, and wet-bar rough-ins.
Guest suite or in-law apartment
Egress bedroom, full bath, and kitchenette — configured for legal accessory dwelling use.
Home gym & wellness room
Impact flooring, ventilation, mirror walls, and dedicated electrical for equipment and sauna.
Kids' playroom & family room
Warm LVP flooring, built-in storage, and layered LED lighting the whole family enjoys.
How we work
Site assessment
We inspect moisture, ceiling height, egress, and utilities to design a plan that meets NYC code.
Fixed-price quote
Detailed scope with materials, finishes, and a firm timeline — approved before demo begins.
Build & warranty
Waterproofing systems and workmanship covered by a 7-year written warranty.
Basement renovation FAQ
How much does a basement renovation cost in NYC?
Finished basements in NYC and the tri-state typically range from $40,000 for a simple rec room to $180,000+ for a full guest suite with bath, kitchenette, and waterproofing.
Do I need a permit to finish my basement?
In most cases yes. NYC requires DOB permits for framing, electrical, plumbing, and any egress or bedroom conversion. We handle every filing.
My basement gets water. Can it still be finished?
Almost always. We start with interior/exterior waterproofing, sump systems, and vapor barriers before any framing. That work is warrantied.
How long does a basement remodel take?
Most basement renovations take 6–12 weeks depending on waterproofing scope, bathroom additions, and finish level.
Request your free basement quote
Tell us about your basement. We'll call within one business day to schedule your free in-home consultation.