Bathroom Renovation Cost on Long Island: 2026 Complete Guide

Ask ten contractors what a bathroom renovation costs on Long Island and you'll get ten ballparks. Most of them are either too low (to win the bid) or too high (so they can “discount” you to feel like you got a deal). We'd rather tell you the truth.

After 640+ bathrooms across Nassau and Suffolk, here's what you actually pay.

Average Bathroom Renovation Cost in Nassau vs Suffolk County

Labor is the biggest variable, and Long Island labor runs 15–25% above the national average because of NYC proximity. Nassau County typically runs 8–12% higher than Suffolk County — stricter permit timelines, higher disposal fees, and more village jurisdictions that require separate filings. Here are the real numbers:

Project Type	Nassau County	Suffolk County
Powder Room / Half Bath	$8,000–$15,000	$7,500–$14,000
Hall Bath Full Remodel	$22,000–$45,000	$18,000–$40,000
Tub-to-Shower Conversion	$12,000–$22,000	$10,000–$20,000
Walk-In Shower Only	$14,000–$32,000	$12,000–$28,000
Master Bath Renovation	$38,000–$95,000+	$35,000–$85,000+
Accessible / ADA Bath	$18,000–$48,000	$15,000–$45,000

All ranges assume full gut to studs, Schluter Kerdi waterproofing, new plumbing rough-in, porcelain or ceramic tile (not marble), mid-range Kohler or Moen fixtures, and permit filing. Marble, frameless glass enclosures, heated floors, and premium fixtures push into the top of each range.

What Drives Bathroom Renovation Costs on Long Island

Six cost drivers separate a $22,000 hall bath from a $45,000 hall bath.

Labor rates and NYC proximity premium. Long Island trades people — licensed plumbers, tile setters, finish carpenters — earn 15–25% more than national average wages. A union tile installer in Nassau County runs $85–$110/hour. That adds $2,000–$5,000 to labor-intensive tile work vs. inland markets.

Salt-air material upgrades. Coastal Long Island towns — Babylon, Islip, Oyster Bay, Long Beach — require stainless steel grab bars, marine-grade caulk, and corrosion-resistant fasteners. Not optional. Budget $800–$1,500 extra for the right hardware.

Permit costs by town.Nassau County town permits run $350–$900. Village permits in incorporated Nassau villages (Garden City, Great Neck, Rockville Centre) are filed separately and cost $200–$1,500 on top. Suffolk County townships are generally $250–$700. We pull every permit — it's included in our quote.

Plumbing condition. Most Long Island homes built before 1980 have galvanized supply lines and cast-iron drains. When we open walls, we replace them. That adds $1,800–$4,500 but prevents failures in 3–5 years.

Tile selection. Large-format porcelain (12x24) is our baseline. Marble doubles install time vs. porcelain — the cuts, the sealing, the matching — and adds $1,500–$3,000 in labor alone. Herringbone or mosaic patterns add $800–$1,500.

Structural discoveries. Rotted subfloor, failed shower pan, knob-and-tube electrical — we call these out during demo and price them in writing before proceeding. Budget $1,000–$3,000 contingency on any pre-1970 Long Island bathroom.

Nassau County vs Suffolk County Permit Requirements

Nassau County is more complex. The county has 3 towns but 64 incorporated villages, many with their own building departments that operate independently of the town. A renovation in Garden City requires a Garden City village permit, not just a Nassau County permit. In Great Neck, the same. We've filed in all of them.

Suffolk County has 10 towns but far fewer incorporated villages. Town permits are usually sufficient, and inspectors are generally more straightforward to schedule. A Huntington bathroom renovation permit runs $250–$500 and inspections typically happen within 5 business days of request. A Great Neck bathroom renovation can require both the village permit and, if near wetlands, a county environmental review.

Both Nassau and Suffolk require a permit for: plumbing rough-in changes, tub-to-shower conversions, wall removals, electrical subpanel work, and any structural framing. Neither requires a permit for: vanity swaps, toilet replacements, tile-over-tile, and fixture replacements without relocation.

Cost-Saving Tips Without Cutting Corners

Keep the plumbing in the same locations. Moving a toilet or drain costs $1,500–$3,000 in labor. If the layout works, keep it.

Choose porcelain over marble. Large-format porcelain looks great, lasts longer in humid conditions, and costs 35–50% less to install than marble. The Calacatta look is available in porcelain for $4–$8/sq ft instead of $22–$35/sq ft for real marble.

Stick with one fixture brand. Mixing Moen and Grohe means two rough-in specs, two installation tolerances, and two service warranties. Pick one line — we recommend Kohler Purist for mid-range and Brizo for premium — and spec everything in it.

Don't skip waterproofing. The $800–$1,200 Schluter Kerdi-Board system is the most cost-effective money spent on a bathroom. The alternative is demo and redo in 5 years when moisture reaches the framing. See our tile installation page for how we spec every shower.

How to Get an Accurate Quote

Fill out our form or call. We schedule a free on-site walkthrough, measure the bathroom, assess the plumbing and electrical condition, discuss materials by brand and SKU, and send a firm itemized quote within 48 hours. No pressure, no ballparks, no surprises.

Every Island Bath Studio quote includes: demo and disposal, framing, plumbing rough-in, electrical rough-in, Schluter waterproofing system, tile and setting materials, all fixtures and vanity by SKU, permit fees, all inspections, and final punch. The only exclusions are unforeseen structural conditions (rotted framing, asbestos, knob-and-tube) — and those are priced in writing before any extra work begins.

Ready to know your real number? Schedule a free estimate or call us directly. We cover all of Nassau and Suffolk County.

Frequently Asked Questions

How much does a bathroom renovation cost on Long Island in 2026?

A full bathroom renovation on Long Island runs $18,000–$45,000 for a hall bath and $30,000–$95,000 for a master bath in 2026. Nassau and Suffolk County labor rates run 15–25% above the national average due to NYC proximity. A powder room update starts around $8,000–$15,000.

Is bathroom renovation more expensive in Nassau County vs. Suffolk County?

Nassau County projects typically run 8–12% higher than equivalent Suffolk County jobs due to stricter permit requirements, higher disposal fees, and a denser labor market. Village jurisdictions in Nassau (Garden City, Great Neck, etc.) can add $500–$1,500 in permit fees alone.

How much does a tub-to-shower conversion cost on Long Island?

A tub-to-shower conversion on Long Island costs $10,000–$22,000. That includes permit, demo, framing, Schluter Kerdi waterproofing, linear drain, porcelain tile, frameless glass, and thermostatic valve. Both Nassau and Suffolk require a permit for this work.

What permits are required for a bathroom renovation on Long Island?

Permits are required for any work touching plumbing, electrical, or structural framing — which covers most full renovations, tub-to-shower conversions, and layout changes. Nassau County permits run $350–$900 and Suffolk County $250–$700 depending on the town. Village permits in Nassau can add $200–$1,500 on top.

What is the Long Island bathroom renovation labor premium?

Long Island labor rates for licensed plumbers, tile setters, and finish carpenters run 15–25% above national averages. The NYC proximity premium plus salt-air material upgrades required for coastal towns can add $2,000–$6,000 to an average renovation vs. inland markets.

How do I get an accurate bathroom renovation quote on Long Island?

The only accurate quote comes from an on-site walkthrough. We visit your home at no charge, measure the bathroom, assess the plumbing and electrical condition, discuss materials by brand and SKU, and deliver a firm itemized quote within 48 hours. Ballpark quotes over email lead to change orders.