Basement Remodeling

Turn unused square
footage into living space.

Full basement finishing and remodeling for Nassau County and Long Island homes — family rooms, home offices, guest suites, and wet bars, built dry, code-compliant, and ready to actually live in.

Basement Remodeling Finished basement with family lounge and wet bar by Nassau Roofing and Remodeling
★★★★★ 5.0 Homeowner Rated
Licensed & insured general contractor
Moisture & egress code compliance
Serving Nassau County + Long Island

Basement Remodeling Long Island

The most affordable square footage in your home.

An unfinished basement is often the cheapest way to add real living space to a Long Island home, but it’s also one of the easiest projects to get wrong — moisture, egress requirements, and ceiling height all need to be handled correctly from day one. As a licensed general contractor, we start every basement project with a moisture and structural assessment before any finishing work begins.

Whether you want a simple family room, a home office, a guest suite with a full bathroom, or a basement built for entertaining with a wet bar, we design and build basement remodels that are dry, code-compliant, and genuinely comfortable to spend time in — not just a finished-looking room over a damp slab.

What’s Included

Basement remodeling services.

01

Full Basement Finishing

Framing, insulation, moisture control, flooring, lighting, and drywall to turn a raw basement into finished living space.

Includes moisture & structural assessment.

02

Egress Windows & Code Compliance

Egress window installation and code-compliant ceiling height, exits, and smoke detection for legal living or bedroom space.

Required for basement bedrooms in most cases.

03

Basement Bathrooms & Wet Bars

Full and half-bathroom additions, wet bars, and mini-kitchens with new plumbing and drainage sized for below-grade installation.

Includes sump & ejector pump systems as needed.

04

Home Offices, Gyms & Guest Suites

Purpose-built basement rooms — home offices, home gyms, media rooms, and guest suites — designed around how you’ll actually use the space.

Sound insulation available for media rooms.

Materials & Style

Built dry, finished right.

Moisture-Resistant Flooring

Luxury vinyl plank and other moisture-tolerant flooring options built for below-grade conditions.

Proper Insulation & Vapor Barriers

Rigid foam insulation and vapor barrier systems that keep the space dry and comfortable year-round.

Built-In Storage & Shelving

Custom shelving, media built-ins, and closet storage that make the most of every square foot.

Layered & Recessed Lighting

Recessed lighting, LED under-shelf accents, and layered fixtures that brighten a naturally darker space.

Budgeting

What affects the cost of a basement remodel?

Basement pricing depends heavily on existing conditions — moisture, ceiling height, and what’s already down there. These are the biggest factors, and we’ll walk through them during your free consultation.

01

Moisture & waterproofing needs

Addressing existing leaks or moisture issues before finishing adds cost but protects the investment.

02

Bathroom or wet bar plumbing

Below-grade plumbing often requires an ejector or sump pump system, adding to the scope.

03

Egress windows & ceiling height

Cutting in egress windows or addressing low ceiling height adds excavation and structural work.

04

Finish level

A simple painted family room costs less than a basement with a full bathroom, wet bar, and built-ins.

Service Area

Basement remodeling across Nassau County & Long Island.

We finish and remodel basements for homeowners throughout Nassau County and the surrounding Long Island communities, with every project backed by licensed, insured craftsmanship.

Westbury
Merrick
Great Neck
Glen Cove
Huntington
East Meadow
Garden City
Massapequa Park

Basement Remodeling FAQ

Common questions about basement remodels.

How do you keep a finished basement from getting damp or moldy?

We start with a moisture and structural assessment, address any existing water issues first, and use vapor barriers, rigid foam insulation, and moisture-tolerant flooring throughout — not just paint over a problem.

Do I need an egress window to finish my basement?

If you’re adding a bedroom, most New York building codes require an egress window as a secondary escape route. We handle the excavation, window well, and installation as part of the project.

Can you add a bathroom to my basement?

Yes. Below-grade bathrooms typically need an ejector or sump pump system to move waste up to the main sewer line, which we size and install as part of the plumbing scope.

How long does a basement remodel take?

A straightforward finished basement without plumbing usually takes four to six weeks. Adding a bathroom, wet bar, or egress window typically extends the timeline to eight to twelve weeks.

Ready When You Are

Let’s put your basement to work.

Request a free consultation and we’ll assess your basement, talk through what’s possible, and put together a clear, no-pressure estimate.

Request My Free Estimate