Island Bath Studio
Master Bathroom Renovation on Long Island

The one you enjoy every morning

Master Bathroom Renovation on Long Island

Full master bathroom renovations across Nassau and Suffolk. Freestanding tubs, double vanities, heated porcelain floors, frameless-glass showers, tile to ceiling.

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.

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

Licensed & Insured

Nassau County & Suffolk

NKBA Certified

Certified Bath Designer

4.9 / 5.0

163+ reviews

640+ Bathrooms

Since 2012

Master bath specialists

A master bath that looks custom and runs right.

A master bathroom is a twenty-year room. It should feel like a hotel you don't want to leave and run without a plumbing mystery for decades. That's a design question, a plumbing question, and a waterproofing question — we handle all three.

Angela is an NKBA Certified Bath Designer, and master bathrooms are her specialty. She'll design a layout that flows — toilet, tub, shower, vanity in a sequence that works — and spec materials you actually want to live with.

Behind the tile we install modern plumbing (PEX supply, PVC drain), Schluter waterproofing on every wet surface, Ditra uncoupling membrane under the floor, and joist reinforcement where deflection calls for it. The luxurious finish lasts because the boring stuff underneath is right.

Master Bathroom Renovation on Long Island

What's included

Every master bath project includes:

  • Design package with 3D layout
  • Full permit handling
  • Plumbing relocation for freestanding tub
  • Double vanity with quartz counter
  • Heated porcelain floor (optional)
  • Frameless walk-in shower with Kerdi waterproofing
  • Freestanding soaking tub + freestanding filler
  • Smart lighting, dimmers, LED mirror
  • Bath fan with humidity sensor
  • Floor-to-ceiling large-format or mosaic tile
  • Custom niche, bench, or built-in shelving
  • Final punch, sealing, walkthrough

Our Process

How the project actually runs.

No mystery. No surprise delays. Here's the exact sequence.

01

Design

Angela walks the bathroom, measures, talks lifestyle and wish-list. Delivers a 3D layout with fixture and material spec within a week.

02

Selection

Tile samples, fixture showroom visits (if desired), quartz samples. We help edit choices to avoid 50-option paralysis.

03

Build

Permit, demo, plumbing rough, framing, waterproof, tile, cabinets, glass, fixtures, paint, trim. Typically 4–6 weeks.

04

Final

Inspection, punch list, final sealing, final walkthrough. One crew from day one. Daily photo updates the whole way.

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.

Premium bathroom materials

Schluter Kerdi + Kerdi-Board

Shower and tub-deck waterproofing. Industry standard.

Schluter Ditra-Heat

Uncoupling membrane + integrated electric floor heating. Comfortable floors without the cost of a full hydronic system.

Freestanding tubs: Kohler Memoirs, TOTO Neorest, Victoria + Albert

Cast iron, acrylic, or volcanic limestone. We level and secure every tub properly — no wobble.

Floor tile: porcelain or marble

Large-format porcelain (24x48) or natural stone. Natural stone gets sealed and sealed again.

Quartz vanity: Cambria, Silestone, Caesarstone, MSI Q

Non-porous, heat and stain resistant, lifetime look.

Fixtures: Kohler, TOTO, Brizo, Waterworks

All-metal construction, parts-for-life brands. No plastic valve bodies.

Worth knowing first

Things most contractors won't tell you.

Freestanding tubs need serious floor

A filled cast-iron freestanding tub with a person in it is 800+ pounds in one spot. We verify joist capacity before ordering. Sometimes the joist bay needs a sister. Sometimes a blocked bay. We check first.

Double vanities = plumbing work

Most Long Island master baths were built with a single vanity. Going to a double means teeing off the existing supply and adding a drain branch — we permit it and run it properly. Not a two-hour job.

Heated floors are cheaper to install now than later

Ditra-Heat goes under the tile. Adding it after tile is already down is a full floor tear-out. If you're remodeling, we always price both options and let you decide with full information.

Tile to the ceiling looks expensive because it costs more

Adding tile from standard 48" to full ceiling roughly doubles the tile labor on the walls. Worth it on master baths. Feels custom; not an upcharge we recommend on every bath.

Live Job Log

Recent Master Bath Jobs on Long Island

Real master bath projects finished in Nassau & Suffolk over 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

What homeowners say

Reviews from master bath clients.

Master bath renovation with double vanity, freestanding tub and a frameless glass shower. Their tile specialist laid herringbone floor perfectly. Crew cleaned up every single day.

Priya S.

Garden City, NY · Master Bath

Beautiful craftsmanship. They redid the master bath including plumbing rough-in relocation for the freestanding tub. No corners cut on the waterproofing.

Rachel T.

Great Neck, NY · Master Bath

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

Most-asked about master bath.

4–6 weeks for a standard master with plumbing relocation. 6–8 weeks if we're reconfiguring walls, adding square footage, or doing custom stone tile.

Sometimes, by taking closet space or reworking adjacent walls. We handle the architectural drawings for permit and engineering sign-off where structural.

Both. Angela is an NKBA Certified Bath Designer and we include design with every master project. We also happily execute a design from your interior designer or architect.

Yes on both. Steam adds 10–15 days to the schedule and requires full-ceiling waterproofing. Sauna adds a prefab room or custom build-out; we sub the Cedar carpenter for the room but handle the electrical and connection.

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.

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