Master Bathroom Renovation
Completed full master bathroom remodel: curbless walk-in shower, Schluter Kerdi waterproofing, 12x24 porcelain floor, freestanding tub, double vanity with quartz.
Garden City Apr 2026
Full gut to final walkthrough
Full Bathroom Remodel on Long Island
Down-to-the-studs bathroom renovation across Nassau and Suffolk. New plumbing, new layout, Schluter-Certified waterproofing, firm quote, one dedicated crew.
Licensed Nassau & Suffolk NKBA Certified 4.9★ / 163+ Mon–Sat 7–6
Get Your Free Bathroom Estimate
On-site quote, firm number, no high-pressure sales. Response within 1 business day.
Licensed & Insured
Nassau County & Suffolk
NKBA Certified
Certified Bath Designer
4.9 / 5.0
163+ reviews
640+ Bathrooms
Since 2012
A proper full remodel
Gut it properly. Build it once. Walk away clean.
A full bathroom remodel isn't a cosmetic refresh. It's a demolition, a new plumbing rough-in, new framing as needed, waterproofing, tile, fixtures, and trim — all sequenced so the finish work actually lasts. Done right on a Long Island hall bath, a full remodel takes 3–4 weeks and outlives its installers.
Most Long Island bathrooms we remodel were built in the 1950s–1990s. Cast iron drains, galvanized supply lines, cement-board-behind-tile with no real waterproofing. We strip all of that out, replace drain stacks with PVC, supply with PEX, waterproof with Schluter Kerdi or Kerdi-Board, and rebuild the room from the subfloor up.
We don't pack three projects and run between them. One Island Bath crew lives in your house from demo day to final walkthrough. Your project manager texts photo updates every evening. Firm number in the contract — no change-order theater.
See all of our Long Island bathroom renovation services — from full gut remodels to accessible baths, tub-to-shower conversions, and master suite builds across Nassau and Suffolk County.
What's included
Every bathroom remodel project includes:
- On-site measurement and design consultation
- Nassau or Suffolk permit pulled and managed
- Full demo, debris haul-off, dust containment
- New PVC drain stack + PEX supply lines
- Schluter Kerdi or Kerdi-Board waterproofing
- Schluter Ditra underlayment on floor
- Subfloor/joist reinforcement as needed
- New venting, GFCI outlets, bath fan
- Tile layout, dry-fit, installation
- Vanity, toilet, tub/shower fixtures install
- Glass shower doors / frameless enclosure
- Paint, trim, final punch-list walkthrough
Our Process
How the project actually runs.
No mystery. No surprise delays. Here's the exact sequence.
01
On-site walk
Angela or a project manager walks your bathroom, measures, reviews layout options, talks scope and tile preferences.
02
Firm quote
Itemized, firm, 48-hour turnaround. Every line item, every material brand, every labor cost spelled out.
03
Build week
Permit pulled, demo day scheduled, one crew moves in. Daily photo updates. Floor protection every day.
04
Final walk
Inspection signed off, punch list completed, grout sealed, caulk cured. We don't leave until the last tile is perfect.
Materials We Trust
The brands and systems we spec.
We only install systems we can stand behind for twenty years. No brand bait-and-switch mid-job.
Schluter-Systems Kerdi / Kerdi-Board
Sheet-membrane waterproofing for walls and pan. We're Schluter-Certified installers. Industry-standard life-of-bathroom waterproof layer.
Schluter Ditra
Uncoupling membrane under every tile floor. Stops subfloor movement from cracking grout or tile.
Kohler, TOTO, Delta, Moen
Fixtures and valves with parts availability and solid warranty. No big-box mystery brands.
Porcelain tile: Daltile, Marazzi, Florida Tile
Large-format porcelain (12x24, 24x24, 24x48) plus mosaic accents. Samples on-site before the order.
PEX supply + PVC drain
Modern plumbing that won't scale or corrode like 60-year-old galvanized. Permit-friendly with NY code.
Quartz counters: Cambria, Caesarstone, MSI Q
Non-porous, no sealing, built for moisture. Undermount sinks installed with proper silicone gaskets.
Worth knowing first
Things most contractors won't tell you.
Your joist bay matters
Heavy tile floors (big-format porcelain, especially stone) need a subfloor stiffer than code. We check deflection on day one and sister joists before tile goes down if needed. Skipping this step is why tile floors crack two winters later.
Waterproofing is not caulk
Caulk and grout fail within a few years. The waterproof layer under the tile is what actually keeps water out of your framing. We spec Schluter sheet membrane on every shower. No paint-on 'waterproofing', no mesh-tape-at-corners shortcuts.
Permits are worth pulling
For plumbing or electrical work in Nassau or Suffolk, a permit protects you — inspected work means clean disclosure when you sell, and known-good hidden infrastructure. We handle the paperwork.
Layout changes = big-time cost lever
Moving the toilet 8 inches means cutting into the subfloor and rerouting a 3-inch drain. We'll always tell you whether a layout change is worth the cost. Sometimes it is. Often it isn't.
Live Job Log
Recent Bathroom Remodel Jobs on Long Island
Real bathroom remodel projects finished in Nassau & Suffolk over the last few months.
Tub to Shower Conversion
Tub-to-shower conversion in Hicksville colonial: pulled cast iron tub, rebuilt framing, Kerdi-Line drain, large format porcelain tile, frameless glass.
Hicksville Mar 2026
Full Bathroom Remodel
Full gut remodel in 1960s Huntington cape: new plumbing rough-in, Schluter Ditra underlayment, herringbone marble floor, shaker vanity.
Huntington Mar 2026
Accessible Bathroom Remodel
ADA / aging-in-place remodel in Smithtown: curbless shower, grab bars, comfort height toilet, slip-resistant porcelain, wider 36" doorway.
Smithtown Mar 2026
Walk-In Shower Installation
Walk-in shower install in Massapequa hall bath: Kerdi-Board walls, linear drain, Calacatta subway tile, bench seat, thermostatic valve.
Massapequa Mar 2026
Shower Renovation
Shower renovation in Commack: new Schluter pan, rebuilt shower curb, mosaic floor, subway walls, brushed nickel trim kit.
Commack Feb 2026
Master Bathroom Renovation
Master bath remodel in Great Neck: relocated plumbing for freestanding tub, double vanity, floor-to-ceiling tile, Nassau permit pulled.
Great Neck Feb 2026
Bathroom Tile Installation
Full bathroom tile installation in Levittown: 24x48 large format walls, herringbone floor, schluter profile edge trim.
Levittown Feb 2026
What homeowners say
Reviews from bathroom remodel clients.
Angela's team gutted our 1970s hall bath and turned it into a spa. Zero-threshold shower, Schluter waterproofing, linear drain, perfect tile lines. They hit the schedule and stayed on budget.
Jennifer M.
Hicksville, NY · Full Remodel
Small hall bath felt three times larger when they finished. Floating vanity, 12x24 large-format tile up the wall, frameless glass. Quoted three, they came in on the low end.
Daniel K.
Massapequa, NY · Full Remodel
Hall bath remodel done while we were upstate. Came back to a finished room and a spotless house. Angela texted daily updates with photos.
Marie B.
Mineola, NY · Full Remodel
Questions
Most-asked about bathroom remodel.
Most Long Island hall baths take 3–4 weeks demo-to-walkthrough. Master baths with plumbing relocations or custom tile run 4–6 weeks. We dedicate one crew to your project.
Yes. Island Bath Studio pulls the permit, schedules inspections, and submits the drawings. Your only role is approving the scope.
Yes, unless it's your only bathroom. We install dust containment, protect floors, and keep utility shutoffs to predictable windows you can plan around.
Very common on 1950s–1970s Long Island baths. Our contract includes an allowance for hidden conditions. If we find framing rot or mold, we show you the photos, explain the fix, and document the added cost before doing the work.
Angela is an NKBA Certified Bath Designer — design is included with every full remodel. We walk your bathroom, review inspiration images, and hand you a design package with layout, tile selections, and fixture spec within a week.
We don't use rotating subs. Our plumber and electrician are licensed in both Nassau and Suffolk and work with Island Bath on every job. Same faces in your house every day.
Nassau County bathroom remodel costs run slightly above the national average due to higher labor rates and permit fees. A hall bath full gut-and-rebuild — PVC drain, PEX supply, Schluter waterproofing, tile, vanity, toilet, fixture — typically costs $11,000–$24,000 depending on tile grade. A master bath renovation with walk-in shower, double vanity, heated floor, and no major plumbing relocation runs $26,000–$55,000. If you're relocating the toilet or tub, add $4,000–$8,000 for the subfloor work and drain reroute. We break every line item in writing before you sign.
Yes — if your project involves moving any plumbing (toilet, drain, supply lines), upgrading electrical (GFCI, new circuit for a heated floor or exhaust fan), or structural work (enlarging the bathroom, moving a wall). Nassau County and Suffolk County both require a Home Improvement Contractor license and a building permit for these scopes. Cosmetic work — replacing a vanity in place, swapping fixtures without moving pipes, installing new tile over existing backer — can often be done without a permit. We tell you exactly which category your project falls in at the estimate appointment. We pull all permits ourselves.
Porcelain tile is the top choice for Long Island bathrooms because it's completely non-porous and unaffected by the seasonal humidity swings we get from June through September. Large-format porcelain (12×24 or 24×24) is especially popular right now — fewer grout lines, easier to clean, and reads upscale. For floors we use a slip-rated porcelain or textured mosaic to meet code. Natural stone (marble, travertine) is beautiful but needs sealing every 1–3 years in a shower environment. We install it with proper penetrating sealer and give you a maintenance schedule if you go that route. The non-negotiable for any Long Island bathroom: a properly sized humidity-sensing exhaust fan. Timers shut off too early and leave moisture in the walls. We spec humidity sensors on every project.
Related services
Other bathroom projects we handle.
Ready when you are
Let's start your bathroom.
Free on-site estimate. Firm quote within 48 hours. No high pressure, ever.
640+
Bathrooms Completed
4.9★
163 Google Reviews
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Suffolk County NY
Bathroom Remodel Suffolk County — Town by Town
A bathroom remodel in Suffolk County NYinvolves more than just picking tile. Each of Suffolk County's six western towns — Islip, Babylon, Huntington, Smithtown, Brookhaven, and Southold — has its own building department, permit process, and inspection schedule. Our crew navigates all of them, pulling permits under our Suffolk County Home Improvement Contractor license and managing every inspection through final sign-off.
Here is what homeowners in each town should know before starting a bathroom remodel in Suffolk County:
Town of Islip
Islip bathrooms — Bay Shore, East Islip, West Islip, Bohemia, Brentwood — are frequently on slab foundations or with low crawl space clearance, which makes drain rerouting more labor-intensive. Permit fees in Islip run $150–$300 for a standard bathroom remodel. Typical full-gut cost: $16,000–$32,000.
Town of Babylon
Babylon homes (West Babylon, North Babylon, Lindenhurst, Deer Park, Copiague) were largely built 1950s–1970s with galvanized supply lines. We replace galvanized with PEX on every full remodel. Town of Babylon permit processing averages 5–10 business days. Typical remodel cost: $14,000–$30,000.
Town of Huntington
Huntington township (Commack, Dix Hills, East Northport, Melville, Northport) has a busy building department — plan on 10–15 business days for permit issuance. Cast iron waste stacks and two-pipe steam heating systems are common in older Huntington homes and must be coordinated around. Typical cost: $17,000–$38,000.
Town of Smithtown
Smithtown (Kings Park, Hauppauge, Nesconset, St. James) homes range from 1950s ranches to 1990s colonials. The building department is known for straightforward permit reviews. Most full bathroom remodels in Smithtown receive permits within 7–10 days. Typical cost: $15,000–$33,000.
Town of Brookhaven
Brookhaven is Suffolk's largest town by area — covering Patchogue, Ronkonkoma, Lake Ronkonkoma, Port Jefferson, and Stony Brook. Many Brookhaven homes are on septic, so we specify WaterSense low-flow fixtures as standard. Permit fees vary by hamlet. Typical remodel cost: $15,000–$35,000.
Town of Southold
Southold (Greenport, Mattituck, Cutchogue, Southold Village) is North Fork wine country — many homes are second residences or historic properties. Work scheduling must account for seasonal access. Southold building permits for bathroom work typically take 2–3 weeks. Typical cost: $18,000–$40,000.
Bathroom remodel permits in Suffolk County
Any bathroom remodel in Suffolk County NY that involves moving plumbing, adding electrical circuits (heated floors, new exhaust fan wiring), or structural changes requires a building permit from the applicable town building department. Cosmetic-only work — swapping a vanity in place, new tile over existing backer — typically does not. We assess permit requirements at your free on-site estimate and pull all permits ourselves. You never have to deal with the building department.
Guest Bath (Suffolk County)
$8,000–$18,000
Vanity, toilet, tile, fixtures. Same footprint. No plumbing relocation.
Full Gut Remodel (Suffolk)
$14,000–$33,000
Down to studs. PVC drain, PEX supply, Schluter waterproofing, full tile, permit.
Master Bath (Suffolk County)
$28,000–$60,000+
Walk-in shower, double vanity, heated floor, layout changes if needed.
Looking for a complete overview of what it takes to do a bathroom remodel Suffolk County NY — including town-by-town permit details, cost breakdowns by scope, and our full service area? Our homepage covers everything Nassau and Suffolk homeowners need to know before starting a renovation.