D&V Home Design Center is a Kitchen & Bath Remodeling Showroom serving Long Island, with design, materials, and installation available under one roof. In a Nassau County home, that covers anything from a powder room to a primary suite: a designer plans the room, you choose tile, vanity, fixtures and glass on our showroom floor in East Northport, and our crews handle demolition, waterproofing and tile, with licensed trades for the plumbing, under one project manager. A midrange full bathroom starts in the low $20,000s, and a large primary or spa bath can reach six figures. For kitchens and a county-wide overview, see our Nassau County remodeling guide.
Why homeowners choose D&V: 5.0 stars on 144 Google reviews (September 2026), BBB A+ accredited, Best of Houzz 2022 and 2023. Licensed in New York City (2100175-DCA), Nassau County (202187), Suffolk County (HI-71989), Westchester County (WC-38277-H24) and Southampton (L007001). Member of NKBA, LIBI, NAHB and NYSBA (through LIBI), and IDS.
Bathroom Costs in Nassau County, Room by Room
These planning ranges come from our bathroom remodel cost guide; a firm number comes after we measure and write a line-item proposal.
- Powder room. The least expensive bathroom to renovate. With no tub, shower or waterproofing, the money goes to the vanity, faucet, flooring or tile, lighting and mirror.
- Hall or guest bath. A full bath with a tub or shower starts in the low $20,000s. Zonda’s 2025 Cost vs. Value report puts the national midrange full bath at roughly $26,000 ($26,138 job cost), and Long Island work generally lands above it because of local labor rates and permit fees.
- Primary or spa bath. A soaking tub, a large custom-tiled shower, a double vanity and premium fixtures can carry the budget to six figures, especially once heated floors, a steam unit, body sprays or a fully waterproofed wet room are added.
Within any of those rooms, four choices move the price most: a custom vanity instead of a stock unit, floor-to-ceiling porcelain or natural stone instead of a simple tiled floor, frameless custom glass instead of a framed door, and relocating the toilet, tub or vanity. Leaving the plumbing where it is remains the easiest way to control cost. Set aside 10 to 15 percent as a contingency for what turns up once the old tile comes off.
Bathroom Plumbing and Permits in Nassau’s Towns and Villages
Replacing tile, a vanity, a toilet or a faucet in the same spot is often treated as cosmetic, but not everywhere: the Town of Oyster Bay and the Village of Sea Cliff both include fixture work in their permit rules. Moving a drain, relocating the toilet, converting a tub to a shower, or adding a circuit for a heated floor, new lighting or an exhaust fan needs a permit. Nassau County leaves building permits to its towns, cities and villages (nassaucountyny.gov), so the rules depend on where the house sits.
The Town of Oyster Bay, which covers Glen Head, Syosset, Plainview and the hamlet of Oyster Bay, names plumbing fixtures and any interior alterations on its list of work needing a permit, filed with the Building Division at 74 Audrey Avenue or its annex at Town Hall South, 977 Hicksville Road in Massapequa (oysterbaytown.com). Unincorporated Manhasset and Roslyn Heights go to the Town of North Hempstead at 176 Plandome Road, which issues plumbing permits alongside building permits through its online portal (northhempsteadny.gov). Merrick and North Bellmore file with the Town of Hempstead Department of Buildings (hempsteadny.gov).
Village rules can be more specific. The Village of Sea Cliff requires a permit for new wiring, panels or circuits and for plumbing work that cuts, solders or connects pipes or hoses, including PEX; only minor plumbing repairs such as washers, toilet fill valves and flappers are exempt (seacliff-ny.gov). The Village of Roslyn reviews applications against the New York State Building Code and its own village code, and states that work done without a required permit is against the law (historicroslyn.org). Not sure if your street is inside a village? We confirm jurisdiction before anything is filed. D&V determines which building, plumbing or electrical permits your address requires, makes sure each is filed under the proper license and schedules the rough-in inspections, so walls are not closed and tiled over pipes nobody has inspected. Our Long Island permit guide has the full picture.
Tub-to-Shower Conversions and Aging-in-Place Bathrooms
Accessibility work is a common bathroom project on Long Island. A tub-to-shower conversion replaces a hard-to-step-over tub with a low-threshold or curbless shower, usually inside the existing footprint, which is why it often costs less than a full gut renovation. The drain still changes, so the conversion still needs a plumbing permit. For people who prefer to bathe seated, a walk-in tub adds a sealed door and a built-in seat. Grab bars, a comfort-height toilet, slip-resistant tile and a wider doorway can go into the same project, and we price this work individually after seeing the room.
Tile, Vanities and Glass: Choosing at the Showroom
Lead times drive a bathroom schedule more than construction does, so every finish is picked before demolition, in our showroom of about 6,200 square feet. Tile in porcelain, ceramic, stone and mosaic is on the floor with vanities from stock units through custom pieces, and vanity tops come in quartz, granite, marble and porcelain. Shower doors run from framed sliders to frameless custom glass, which we measure after the tile is set. Fixtures from Kohler, Grohe, Delta, Brizo, Rubinet and Watermark Designs are displayed with tubs, toilets and lighting.
Without traffic, the showroom is about 20 minutes from Syosset, Woodbury and Plainview and about half an hour from Oyster Bay, East Hills and Roslyn, while Glen Head, Manhasset, Merrick and Bellmore are roughly 30 to 40 minutes away. We are open Saturday and Sunday 10 AM to 5 PM and weekdays 9 AM to 6 PM. Find directions and showroom details.
Nassau Bathrooms We Have Completed
Our Nassau bathroom portfolio is concentrated on the North Shore. Recent examples, with photos:
- Bathroom Remodel, Old Brookville, NY 2026: dramatic marble and warm brass accents for a spa-like feel.
- Bathroom Remodel, Glen Head, NY 2025: soft textures, natural materials and warm lighting.
- Bathroom Remodel, East Hills, NY 2025: calming neutrals and soft lighting.
- Bathroom Remodel, Manhasset, NY 2024: modern style balanced with everyday practicality.
- Bathroom Remodel, Great Neck, NY 2024: one of two Great Neck projects in our portfolio, alongside a 2025 kitchen.
The portfolio also includes a 2023 bathroom in Manhasset, two in Oyster Bay Cove (2022 and 2023), one in Muttontown (2022) and one in Roslyn Harbor (2022), plus a 2026 first-floor remodel in North Bellmore that included a bathroom. Browse them all in our project portfolio.
How Long a Nassau Bathroom Remodel Takes
Expect roughly 2 to 6 weeks of design and selections, then 2 to 4 weeks of construction once materials are on site. Orders go in while the permit is being filed, so the room is not opened until everything is in hand. On site, the sequence is demolition, rough-in plumbing and electrical with inspections, waterproofing, tile, vanity and fixtures, and finally the shower glass, templated after the tile is done. A same-footprint hall bath sits at the short end; relocated plumbing or a steam shower runs longer. Our bathroom remodeling service page details the full scope of work.
Frequently Asked Questions
How much does a bathroom remodel cost in Nassau County?
A midrange full bathroom starts in the low $20,000s, and Long Island work generally runs above the national midrange figure of roughly $26,000 in Zonda’s 2025 Cost vs. Value report. Powder rooms cost less; a large primary or spa bath can reach six figures.
Do I need a permit for a bathroom remodel in Nassau County?
Usually, yes. Moving a drain or toilet, converting a tub to a shower, or adding electrical circuits requires a permit from your town, city or village building department. Replacing fixtures and tile in the same location often does not, but the Town of Oyster Bay and the Village of Sea Cliff include fixture work, so we confirm the rule for your address. D&V handles the permits as part of the project.
How long will my bathroom be out of service?
Construction usually takes 2 to 4 weeks once materials are on site. Because selections and ordering come first, over roughly 2 to 6 weeks, the room stays usable until everything has arrived.
Is a tub-to-shower conversion less expensive than a full bathroom remodel?
Often. A conversion usually stays inside the existing footprint, so it skips much of the demolition and rerouting of a gut renovation. It still needs a plumbing permit because the drain changes, and the final cost depends on the shower size, tile and glass.
Which Nassau communities has D&V completed bathrooms in?
Our portfolio shows Nassau bathrooms in Old Brookville, Glen Head, East Hills, Manhasset, Great Neck, Oyster Bay Cove, Muttontown and Roslyn Harbor, plus a first-floor remodel with a bathroom in North Bellmore.
Does D&V install the bathroom, or only supply the materials?
Both, under one roof. Our designers plan the room, you select materials at the East Northport showroom, and our crews handle demolition, waterproofing, tile and fixtures, with licensed plumbing and electrical trades, under a dedicated project manager.
Planning a bathroom in Nassau County? Start with a free consultation that includes a general estimate. Call (631) 486-8388, book online, or stop by the showroom at 2095 Jericho Turnpike, East Northport, NY 11731, open seven days a week.