
Master Bathroom Renovation
Completed full master bathroom remodel: curbless walk-in shower, Schluter Kerdi waterproofing, 12x24 porcelain floor, freestanding tub, double vanity with quartz.

Commack, Suffolk County
Local bathroom remodels, walk-in showers, and full gut renovations for Commack homeowners. Schluter-Certified waterproofing. Suffolk permits pulled in-house. 4.9★ from 163+ Long Island reviews.
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 Commack
Commack has deep 1960s–1980s subdivision inventory — four-bedroom colonials, hi-ranches, and splits on half-acre lots. Bathrooms are usually two-per-house (hall + master) and usually the original build-out with one refresh somewhere in the 90s. Plenty of good bones; plenty of hidden plumbing we should replace.
We do a lot of shower rebuilds and tile replacements in Commack — the 1990s fiberglass surrounds are failing, the cultured-marble vanity tops look dated, and the plumbing in the walls is well past warranty. We rebuild properly with Schluter, PEX supply, PVC drain, modern fixtures.
Suffolk County permits are routine. Commack hi-ranches sometimes need structural inspection if we reroute plumbing through the lower-level ceiling — we coordinate with the engineer if it's required.
Tile choices in Commack run practical and durable: large-format porcelain in 12×24 or 24×24 for walls, slip-resistant mosaic or textured porcelain for floors. We see a lot of wood-look planks on floors paired with white or gray subway on the walls — a combination that photographs well and holds up under the daily punishment of a busy household. Long Island's humidity swings mean we always spec a humidity-sensing exhaust fan that runs until moisture drops below set point rather than shutting off on a timer.
A full hall bath gut-and-rebuild in Commack — PEX supply, PVC drain, Schluter waterproofing, new tile, vanity, and fixtures — typically runs $11,000–$22,000. A master bath with walk-in shower, double vanity, and no plumbing relocation lands at $20,000–$38,000. Tub-to-shower conversion only: $8,500–$16,000. All pricing includes permit, inspections, and haul-off.
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
11725
Approximately 20–40 minutes from our Mineola studio.
What we've learned in Commack
Commack hi-ranches are ideal for plumbing work — second-floor bathroom drains run through an accessible first-floor ceiling. We can reroute drains, relocate toilets and tubs, and fix sins-of-the-past without major ceiling demo.
The fiberglass tub surrounds from the 90s are almost all failing — discolored, caulk-hopeful, cracked at pan-to-wall joint. Don't replace one with another. Rebuild properly with Schluter and tile.
Commack schools run tight morning and afternoon windows. We align our loud-work start times and dumpster deliveries to avoid bus traffic.
Almost every 1980s–1990s Commack vanity has a cultured-marble top with integrated sink that's yellowing and chip-scarred. Modern quartz + undermount sink upgrade costs less than people think. We quote it in every refresh.
Live Job Log
Real Suffolk County bathroom projects completed in the last few months.

Master Bathroom Renovation
Completed full master bathroom remodel: curbless walk-in shower, Schluter Kerdi waterproofing, 12x24 porcelain floor, freestanding tub, double vanity with quartz.

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.

Full Bathroom Remodel
Full gut remodel in 1960s Huntington cape: new plumbing rough-in, Schluter Ditra underlayment, herringbone marble floor, shaker vanity.

Accessible Bathroom Remodel
ADA / aging-in-place remodel in Smithtown: curbless shower, grab bars, comfort height toilet, slip-resistant porcelain, wider 36" doorway.

Walk-In Shower Installation
Walk-in shower install in Massapequa hall bath: Kerdi-Board walls, linear drain, Calacatta subway tile, bench seat, thermostatic valve.

Shower Renovation
Shower renovation in Commack: new Schluter pan, rebuilt shower curb, mosaic floor, subway walls, brushed nickel trim kit.

Master Bathroom Renovation
Master bath remodel in Great Neck: relocated plumbing for freestanding tub, double vanity, floor-to-ceiling tile, Nassau permit pulled.

Bathroom Tile Installation
Full bathroom tile installation in Levittown: 24x48 large format walls, herringbone floor, schluter profile edge trim.
Services in Commack
Commack homeowners
Shower renovation in Commack: new Schluter pan, rebuilt shower curb, mosaic floor, subway walls, brushed nickel trim kit.
Greg O.
Commack, NY · Shower Reno
Tile work is art with these guys. Calacatta mosaic floor, Carrara subway walls, all perfect lines. Two full days of dry-fit before any thinset hit the board.
Greg O.
Commack, NY · Tile
Shower renovation Commack: full Kerdi waterproofing, Calacatta marble walls, linear drain, frameless glass, new valve.
Amy P.
Commack, NY · Shower Reno
Questions from Commack
Most bathroom renovations in Commack 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. Commack 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.
Commack is in the Town of Huntington, so bathroom permits go through the Town of Huntington Building Division. Any project involving plumbing relocation (moving the toilet, tub, or shower drain), electrical upgrades (GFCI, new circuit for heated floor), or structural changes requires a permit. A cosmetic refresh — tile replacement with no pipe moves, vanity swap, fixture change — generally doesn't need one. We pull the permit on your behalf, schedule the rough and final inspections, and hand you a closed permit card at job completion, which matters for resale disclosure in Suffolk County.
A shower-only rebuild in a Commack home — demo, Schluter Kerdi waterproofing, new tile walls and floor, linear or point drain, frameless glass, and valve/trim kit — typically runs $8,500–$16,000. If the old fiberglass surround has compromised the framing behind it (very common on 30-year-old fiberglass), add $1,500–$3,000 for framing repair. A full bathroom rebuild including shower, new vanity, toilet, and all tile runs $14,000–$28,000. We'll tell you exactly where your project lands on that range after an on-site walk, not before.
We strongly recommend it on any Commack bathroom built before 1990. The galvanized steel supply lines in older Commack homes scale on the inside over time, reducing water pressure and eventually corroding through. During a full remodel we replace all in-wall supply lines with PEX and the in-wall drain section with PVC as part of the standard scope — it adds about half a day of labor but eliminates the scenario where a hidden pipe fails two years after a beautiful new tile job. We note it as a separate line item in every estimate so you can see exactly what it costs.
Most Commack hall bath full remodels run 3–4 weeks from crew start to walkthrough. Master baths with plumbing relocations or custom stone work run 4–6 weeks. Shower-only rebuilds take 2–3 weeks including frameless glass lead time. The permit process in the Town of Huntington typically adds 7–14 days before crew can start — we file immediately after contract signing to minimize the wait. We build the permit timeline into your schedule from day one so there are no surprises.
Porcelain tile is the right call for most Commack bathrooms. It's non-porous, impervious to moisture, doesn't require sealing, and holds up to the humidity swings Long Island gets year-round. We typically use large-format (12×24 on walls, 12×12 or 3×6 mosaic on floors) for a clean look with fewer grout lines to maintain. If you want natural stone — marble, travertine, or slate — we can work with it, but we'll apply a penetrating impregnating sealer at install and give you a maintenance schedule. The biggest mistake we see in older Commack bathrooms isn't the tile itself — it's the missing or failed waterproofing layer behind it. We use Schluter Kerdi sheet membrane on every shower, full stop.
Ready when you are
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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On-site quote, firm number, no high-pressure sales. Response within 1 business day.