Bathroom Remodeling in Nassau County, NY

Bathroom Remodels We've Built in Nassau County

Nassau bathrooms lean toward larger primary suites and more elaborate wet-room builds than the Queens bathrooms we renovate, mostly because the houses have the square footage to support them.

The other pattern we see more often in Nassau than Queens: older houses with original cast-iron or galvanized supply lines feeding the bathroom. Before we open any wall, we inspect the existing plumbing and flag anything that needs updating as part of the project rather than leaving 60-year-old pipe behind new tile. It's a conversation we have on nearly every Nassau bathroom over 40 years old, and it's better to have it during the estimate than after demo.

Old Westbury primary suite, 210 sq ft with separate wet room

An estate-scale primary bath with a freestanding soaking tub, a curbless walk-in shower with a linear drain, and a separate water closet. The wet room required a fully sloped mud-set floor under a large-format porcelain tile, with waterproofing membrane run up the walls to shower-head height and behind the tub surround — there's no tolerance for shortcuts on a room this size, since a failure means tearing out tile across the whole floor to find and fix a leak. In-floor radiant heat throughout, plus a linear drain that keeps the entire floor as one continuous plane with no visible curb. Twelve weeks.

Garden City Tudor powder room and guest bath, two rooms

Part of a broader Garden City Tudor renovation, this project updated a cramped powder room and an adjacent guest bath that hadn't been touched since the house was built. The powder room got a pedestal sink replaced with a furniture-style vanity and picture-frame wainscoting to match the home's prewar detailing. The guest bath's cast-iron tub was reglazed rather than replaced — it was in good structural shape and matched the era of the house, and reglazing saved the client roughly $2,000 versus a full tub replacement with comparable style. New tile, vanity, and fixtures around it. Six weeks for both rooms.

Manhasset hall bath renovation, 85 sq ft

A dated hall bathroom with a fiberglass tub surround and failing grout throughout. We gutted to the studs, found active water damage in the subfloor beneath the toilet flange (a common discovery once tile comes off older bathrooms), replaced the subfloor section, and rebuilt with a tiled shower-tub combo, a comfort-height toilet, and a wall-mounted vanity to make the small room feel more open. Five weeks, including the unplanned subfloor repair, which we handled under a documented change order rather than a surprise invoice.

What does a bathroom remodel cost in Nassau County?

Nassau bathroom pricing runs slightly higher on average than Queens due to larger typical square footage and more frequent wet-room and radiant-heat requests:

Fixtures and tile selection swing the budget more than almost anything else in a bathroom. A freestanding tub can run anywhere from $1,800 to $8,000 depending on material and brand; large-format porcelain tile costs more per square foot than standard ceramic but requires less grout maintenance over time; and a quality frameless glass shower enclosure typically adds $2,000–$4,000 over a framed unit. We walk through these choices with actual product options during design, not vague allowances that turn into disputes at selection time.

• Basic refresh ($40K–$60K): Same footprint, new fixtures, tile, and vanity, standard shower or tub.
• Mid-range remodel ($70K–$120K): Layout changes, curbless shower, radiant floor heat, custom vanity.
• Luxury build ($150K–$350K+): Full primary suite with separate wet room, freestanding tub, premium stone, integrated millwork.

Timeline: design (2–4 weeks), permitting (4–8 weeks depending on township), demo and rough plumbing (3–6 weeks), tile and finish (4–8 weeks). Wet-room builds with custom mud-set floors and linear drains typically add 1–2 weeks to the tile and finish phase versus a standard tub-shower combo.

Permits for a Nassau County bathroom remodel

Any bathroom remodel that touches plumbing — moving a toilet, relocating a shower drain, adding a second sink — requires a permit from the local township or village building department. Great Neck, Manhasset, and Roslyn typically file through Town of North Hempstead; Garden City through Town of Hempstead or its own village department; Old Westbury through its own village building department. A straight fixture swap in the same location sometimes doesn't require a filing, but we confirm with the specific township before starting rather than assuming based on a different town's rules. See our Queens DOB permits guide for the NYC-side equivalent, and our design-build page for how permitting fits into our overall process.

Waterproofing inspections matter as much as the permit itself. Even where a village doesn't require a formal inspection sign-off on waterproofing specifically, we document every membrane and mud-set application with photos before tile goes down, because it's the one part of a bathroom you can never see again once the job is finished — and it's the one thing that causes real damage if it's wrong.

We use a sheet membrane or liquid-applied waterproofing system over cement board on every shower and wet-room build, never just a tile-over-drywall approach with a coat of paint-on sealant. It costs more upfront than the minimum code allows in some cases, but it's the difference between a bathroom that lasts 25 years and one that needs the shower rebuilt in five because moisture got behind the tile.

Bathroom Remodeling FAQ — Nassau County