Island Bath Studio
Bathroom renovation in Great River

Great River, Suffolk County

Bathroom Renovation in Great River, NY

Local bathroom remodels, walk-in showers, and full gut renovations for Great River homeowners. Schluter waterproofing. Suffolk permits pulled in-house. 4.9★ from 163+ Long Island reviews.

Suffolk HIC #HI-69024 Fully Insured 4.9★

Get Your Free Bathroom Estimate

On-site quote, firm number, no high-pressure sales. Response within 1 business day.

No spam. No high pressure. We call once, answer your questions, schedule the on-site if you want.

Licensed & Insured

Nassau #198901 · Suffolk #HI-69024

NYC Licensed

HIC #2110690-DCA

4.9 / 5.0

163+ reviews

640+ Bathrooms

Since 2007

Serving Great River

Bathroom renovations built for the way Great River homes are actually built.

Great River housing is mostly 1920s–1970s: larger homes on wooded riverside lots. That sets what a bathroom here actually is, from the size of the room to what is behind the walls.

Bigger primary baths where the layout can genuinely change, rather than the fixed 5x8 boxes common further inland.

Permits go through the Town of Islip Building Division. We file, schedule the rough and final inspections, and close the permit out at completion. A full hall bath rebuild in Great River typically runs $11,000 to $22,000; a primary bath typically runs $20,000 to $38,000. We quote a fixed number after seeing the room.

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.

Great River bathroom remodel

Service zip codes

Approximately 20–40 minutes from our Mineola studio.

What we've learned in Great River

Local details that matter.

1920s–1970s housing stock

Bigger primary baths where the layout can genuinely change, rather than the fixed 5x8 boxes common further inland.

Permits go through Town of Islip

We file on your behalf and schedule both inspections. You get a closed permit card at completion, which matters when you sell.

Waterproofing is the whole job

Tile is the part you see. Schluter Kerdi membrane behind it is the part that decides whether the shower is still sound in fifteen years. We do not build a shower without it.

Ventilation sized for Long Island humidity

We spec a humidity-sensing exhaust fan that runs until moisture actually drops rather than shutting off on a timer. It is a small line item that decides how long the finish lasts.

Live Job Log

Recent Bathroom Jobs in or near Great River

Real Suffolk County bathroom projects completed in the last few months.

Master Bathroom Renovation

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
Tub to Shower Conversion

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 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

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 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

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 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

Bathroom Tile Installation

Full bathroom tile installation in Levittown: 24x48 large format walls, herringbone floor, schluter profile edge trim.

Levittown Feb 2026

Questions from Great River

Most-asked about bathroom remodels in Great River.

Most bathroom renovations in Great River 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 typically 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. Great River 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 HIC #HI-69024 and carries $1,000,000 General Liability plus Workers' Compensation. We are also EPA Lead Renovation Certified. We provide our license number and certificate of insurance before any contract is signed.

Usually yes. Anything that moves a drain, adds a circuit, or changes structure needs a permit from the Town of Islip Building Division. A like-for-like cosmetic refresh with no pipe moves generally does not. We pull the permit, schedule the rough and final inspections, and hand you a closed permit card at completion, which matters at resale.

A full hall bath gut and rebuild in Great River typically runs $11,000 to $22,000 including PEX supply, PVC drain, Schluter waterproofing, tile, vanity and fixtures. A primary bath with a walk-in shower and double vanity typically runs $20,000 to $38,000. A tub-to-shower conversion on its own typically runs $8,500 to $16,000. We give you a fixed number after an on-site walk, not before.

Most hall bath rebuilds run three to four weeks on site. Primary baths with plumbing relocations or stone work run four to six weeks. Shower-only rebuilds run two to three weeks including frameless glass lead time. Permit approval is separate and typically adds one to two weeks before the crew can start, so we file straight after contract signing.

On any bathroom built before about 1990 we recommend it. Older supply lines scale and corrode from the inside, and a hidden pipe failing behind brand new tile is the worst outcome in this trade. During a full remodel we replace in-wall supply with PEX and the in-wall drain section with PVC, and we show it as a separate line item so you can see exactly what it costs.

Porcelain, in almost every case. It is non-porous, needs no sealing, and handles Long Island's humidity swings year-round. Natural stone is workable but we seal it at install and give you a maintenance schedule. The bigger issue in older Great River bathrooms is never the tile itself, it is the waterproofing behind it. We use Schluter Kerdi sheet membrane on every shower without exception.

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 Homeowner Reviews

1 day

Callback Window

Licensed & Insured Certified On-Time Finish

Get Your Free Bathroom Estimate

On-site quote, firm number, no high-pressure sales. Response within 1 business day.

No spam. No high pressure. We call once, answer your questions, schedule the on-site if you want.