Bathroom Renovation in Islip, NY

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. Islip 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.

A bathroom remodel in Bay Shore or Islip typically runs $8,500–$19,000 for a cosmetic refresh (vanity, tile, fixtures, no plumbing moves). A full gut renovation of a 1960s–70s hall bath — with new plumbing, Schluter Kerdi-Board substrate, floor-to-ceiling tile, and a new vanity — runs $16,000–$33,000. Master bath renovations in the Town of Islip average $29,000–$58,000 depending on scope, fixture grade, and whether layout changes are involved. All quotes include Town of Islip permit fees.

The Town of Islip requires a building permit for any bathroom renovation involving plumbing relocation (moving a toilet, tub, or shower drain), electrical upgrades, or structural changes. Simple cosmetic work — tile replacement, vanity swap, fixture replacement without moving pipes — is typically permit-exempt. We file digitally with all required documentation and typical approval runs 10–14 business days. We coordinate rough inspections immediately after framing and include permit fees in your written estimate. The permit is fully closed out before your final payment.

The Town of Islip building department covers Bay Shore, Islip village, West Islip, East Islip, Brentwood, Central Islip, Oakdale, Islip Terrace, and Bohemia for building permit purposes. We have filed bathroom renovation permits for projects across all of these communities and know the specific document requirements. If you are unsure which building department covers your address, we can verify before the estimate.

Yes. Homes within 1–2 miles of the Great South Bay in Bay Shore, Islip, East Islip, and West Islip experience significantly higher ambient humidity than homes in inland Brentwood or Central Islip. This accelerates grout failure and can compromise standard cement board substrates over time. We consistently spec Schluter Kerdi-Board — a closed-cell waterproof foam substrate — on all shower walls in coastal locations, paired with the full Schluter sheet membrane waterproofing system at corners and penetrations. Homes that flooded during Hurricane Sandy often also have residual sub-floor moisture that we assess before finalizing the waterproofing specification.

The most common renovation request in Brentwood and Central Islip is a tub-to-shower conversion in a 1960s–70s hall bath. These homes were built with a standard 5x8 bathroom using a one-piece fiberglass tub surround. After 50+ years, the fiberglass cracks at the seam and the concrete board behind it absorbs moisture through the failed grout. The correct repair is a full gut: demo to the studs, replace any damaged framing, install Schluter Kerdi-Board substrate, set new tile with proper membrane, and finish with a curbless or low-threshold shower. These conversions typically run $14,000–$24,000 with a Town of Islip permit included.