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
Smithtown, Suffolk County
Bathroom Renovation in Smithtown, NY
Local bathroom remodels, walk-in showers, and full gut renovations for Smithtown homeowners. Schluter-Certified waterproofing. Suffolk permits pulled in-house. 4.9★ from 163+ Long Island reviews.
Suffolk County License #53120-H NKBA Certified 4.9★
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
Serving Smithtown
Bathroom renovations built for the way Smithtown homes are actually built.
Smithtown and the surrounding hamlets (Kings Park, Nesconset, St. James, Hauppauge) have a mix of 1960s splits, 1970s ranches, and newer builds. We work across all of them. The biggest local pattern: aging-in-place renovations for homeowners who've been in the house 30+ years and want to stay.
Our accessible bathroom specialty shows up a lot here. Curbless showers, reinforced grab bar blocking, comfort-height toilets, wider doorways. We design these so they look like high-end master baths, not institutional retrofits.
Suffolk County Building Department requires a permit for any plumbing move, tub removal, or structural alteration. Smithtown permits typically process in 10–14 days from our submission — we file day one of the contract so it doesn't delay your start date.
Typical project costs in Smithtown: a guest bath or hall bath full gut runs $10,000–$22,000. Master bath renovations land between $28,000 and $55,000. Accessible bath with curbless zero-threshold shower, grab bar blocking, and comfort-height toilet: $16,000–$35,000. We complete 4–5 Smithtown projects per year and have NKBA-certified design available on every project at no upcharge.
Looking for a broader view of bathroom remodel options across Long Island? Our full guide covers costs, timelines, and the process we follow from Huntington to Hicksville. Or see all Suffolk County bathroom renovation areas we serve.
Service zip codes
11787 · 11780 · 11725 · 11788
Approximately 20–40 minutes from our Mineola studio.
What we've learned in Smithtown
Local details that matter.
Aging-in-place is the dominant request
A huge share of Smithtown bathrooms we renovate are specifically planned for long-term stay-in-place. We include design details like 36" doorways, curbless showers, grab bar blocking everywhere — even when the client isn't using grab bars today.
Septic system friendly specs
Much of Smithtown runs on septic. We use low-flow fixtures (1.28 gpf toilets, 1.75 gpm showerheads) that reduce septic load without sacrificing performance. Good for the system, good for the water bill.
Suffolk permit turnaround
Suffolk building department in Hauppauge processes Smithtown permits on a predictable schedule. We submit day-one and are rough-inspection-ready within two weeks.
Large lots = material staging
Smithtown lots tend to be larger — we can stage material and set up a proper work zone without crowding neighbors. Makes the demo and rebuild sequence smoother and cheaper.
Live Job Log
Recent Bathroom Jobs in or near Smithtown
Real Suffolk County bathroom projects completed in 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
Services in Smithtown
Everything we build.
Smithtown homeowners
What Smithtown homeowners say.
Accessible bathroom build for my father after his stroke. Curbless shower, grab bars, comfort height toilet, wider doorway. They handled the Suffolk permit. Crew was patient and respectful.
Linda P.
Smithtown, NY · Accessible
Master bathroom remodel in Smithtown: freestanding soaking tub, separate shower, double vanity, heated porcelain floor. Angela's design is gorgeous.
Evan L.
Smithtown, NY · Master Bath
Questions from Smithtown
Most-asked about bathroom remodels in Smithtown.
Most bathroom renovations in Smithtown fall into three tiers. A guest bath or hall bath refresh (tile, vanity, fixtures, no plumbing moves) typically runs $8,000–$18,000. A full hall bath gut-and-rebuild with tub-to-shower conversion lands at $14,000–$28,000. A master bath renovation with double vanity, walk-in shower, and heated floor is usually $30,000–$60,000 depending on fixture selections and stone. Accessible bath builds with zero-threshold shower, grab bar blocking, and ADA hardware run $15,000–$35,000. We give firm, itemized written quotes after an on-site walk.
Suffolk County Building Department requires a permit for any project involving plumbing relocation, electrical upgrades, or structural changes (moving a wall, enlarging the bathroom footprint). Cosmetic refreshes — tile only, vanity swap, fixture replacement with no pipe moves — typically don't need one. We pull the permit on your behalf, coordinate all inspections, and deliver a closed permit card at job completion. This matters for your homeowner's insurance and for resale.
Our current backlog runs 6–10 weeks from contract signing to crew start. If you have a hard deadline — a relative moving in, a home sale, a contractor window — tell us at the estimate stage and we'll do our best to sequence accordingly.
Yes — Island Bath Studio serves all of Suffolk County from our Mineola studio. Smithtown is well within our regular service area and we've completed projects there routinely. No trip fees within Suffolk County.
Standard hall bath full gut-and-rebuild: 3–4 weeks. Master bath renovation: 4–6 weeks. Tub-to-shower conversion only (no full gut): 2–3 weeks. Shower-only tile rebuild: 2–3 weeks including frameless glass. Accessible bath retrofit: 3–4 weeks. Timeline starts the day the permit is in hand.
Yes. Island Bath Studio holds Suffolk County License #53120-H and carries $1,000,000 General Liability plus Workers' Compensation. We are also NKBA Certified and EPA Lead Renovation Certified. We provide our license number and certificate of insurance before any contract is signed.
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
1 day
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Licensed & Insured NKBA Certified On-Time Finish
Get Your Free Bathroom Estimate
On-site quote, firm number, no high-pressure sales. Response within 1 business day.