Licensed & Insured • Manhattan, NYC
Bathroom Renovation in Manhattan, NYC
Premium Bathroom Remodeling Built for Co-ops, Condos & Pre-War Apartments — With Board Package, COI, and DOB Filing Coordination
Manhattan Condo & Co-op Experienced
Board Package Coordination
COI Coordination
DOB Coordination With Licensed Professionals
Fully Licensed & Insured
Manhattan Renovation Experience
Manhattan’s Bathroom Renovation Specialists
A Manhattan bathroom renovation may involve waterproofing, plumbing, electrical work, ventilation, building review, protection requirements, and applicable filings in addition to finish selections. Corniel Construction delivers high-end bathroom remodeling in Manhattan — from custom walk-in showers to marble-look tile installations with board packages, COIs, and DOB filing paperwork coordinated as part of the process. This is work built for long-term performance: tight waterproofing, precise finish detailing, and full documentation from planning through closeout.
Luxury Manhattan Renovation Services
Full Bathroom Renovation
Complete remodels from demolition to completion, with coordination of board submissions , DOB filings, and building documentation.
Walk-In Showers & Frameless Glass
Custom frameless-glass enclosures and shower assemblies coordinated with the approved dimensions, substrate conditions, selected waterproofing system, and manufacturer requirements. Before specifying a curbless shower or relocating fixtures, review drain elevations, available floor depth, branch connections, ventilation and electrical capacity with the appropriate professionals.
Custom Tile & Waterproofing
Tile and finish layouts coordinated with the specified substrate and waterproofing assembly. Where a flood test or other verification is required, confirm the procedure, duration, witness, and documentation before finishes are installed.
Custom Vanity & Storage
Floating vanities, quartz countertops, and built-in storage designed for Manhattan’s space-constrained bathrooms.
Walk-In Showers & Frameless Glass Enclosures
Frameless glass walk-in showers are now a staple of high-end Manhattan bathroom design, creating an open, spa-like feel that makes small bathrooms appear larger. Getting it right comes down to two things — thoughtful planning and waterproofing done flawlessly. We build custom frameless glass showers sized to your space, paired with matte black or brushed nickel fixtures. For pre-war apartments, we fabricate custom shower pans for proper drainage and a seamless fit. The waterproofing and drainage assembly should be selected for the approved design, substrate, manufacturer requirements, building conditions, and applicable inspections. Product selection should not be assumed before the scope is verified.
Custom Tile Work & Documented Waterproofing
Tile defines the look of your renovated bathroom. Manhattan homeowners gravitate toward marble-look porcelain — luxury without the maintenance of natural stone in large formats (12×24+) that minimize grout lines for a cleaner, more modern appearance. Quality tile starts with proper waterproofing. We install the specified waterproofing assembly according to the approved design and manufacturer requirements. Testing and documentation follow the building’s and project’s applicable requirements. Custom layouts, feature walls, and recessed shower niches add style and function, while we help you choose tile that performs well in NYC’s humid climate and hard water.
Why Homeowners Choose Us
Co-op, Condo & Pre-War Specialists
Experienced with the plumbing, board, and code realities specific to older Manhattan buildings.
Approvals Coordinated Start to Finish
Permit, DOB, and co-op/condo board submissions and approval requirements are coordinated as part of the process.
Transparent, Upfront Pricing
Clear pricing by project scope, from cosmetic refresh to full luxury build, giving you confidence at every stage.
Documented, Watertight Work
A specified waterproofing assembly with testing and documentation when required by the building or project.
Vanity Design & Storage for Manhattan Bathrooms
Custom vanities transform functionality in space-constrained bathrooms in NYC. Floating, wall-mounted designs expose the floor beneath, making small bathrooms feel larger, simplifying cleaning, and allowing radiant floor heating in full upgrades. Quartz countertops offer a durable, low-maintenance finish that’s ideal for NYC bathrooms. We pair them with custom vanities featuring smart storage, built-in outlets, and efficient drawer layouts. For double vanities, we maintain proper sink spacing for both code compliance and everyday comfort.
Manhattan Renovation Logistics
Dust Protection
We install zippered containment barriers, use HEPA-filtered vacuums, and run continuous air scrubbers during demolition to keep dust contained and minimize disruption.
Building Access
We coordinate service elevator reservations, deliver COIs directly to building management, and schedule material deliveries in accordance with your building’s rules and approved work hours.
Insurance & Notifications
We carry full general liability and workers’ compensation insurance, and can add your board or management company as an additional insured when required. Neighbor notification letters and weekly progress reports are available on request.
Renovation Process
Our Manhattan Bathroom Renovation Process
Consultation & Feasibility
Site walk to assess dimensions, riser and stack locations, venting, layout options, and project feasibility.
Design, Selections & Approvals
Finalize tile, fixtures, vanity, lighting, and waterproofing, while preparing and coordinating board packages, COIs, drawings, and DOB filings with licensed professionals.
Demo, Rough-Ins & Waterproofing
Perform controlled demolition, complete plumbing and electrical rough-ins, install framing, waterproof the space, and complete any required testing before tiling.
Finishes & Closeout
Install tile, fixtures, and finishing details, then complete inspections, punch-list items, and all required building closeout documentation.
Cost
Manhattan Bathroom Renovation Cost
Cosmetic refresh (limited scope)
Priced after scope review
Full bathroom renovation (most common)
Priced after scope and building review
Luxury build (custom details, heavier plumbing scope)
Priced after design and site review
Key cost drivers: bathroom size, fixture tier, tile complexity, plumbing scope (valves, risers, relocations), electrical and ventilation work, building requirements, DOB filing needs, and timeline. We collaborate with licensed architects and engineers as needed, and support the full process — planning, board and DOB coordination, construction, and final walkthrough as part of our residential remodeling expertise across Manhattan.
Featured Manhattan Renovation Projects
Reviews for Corniel Construction LLC
Leor
I’ve hired Corniel Construction for new flooring, drywall/painting, vanity installations, and miscellaneous repairs. I definitely recommend them.
Barry Neal
Corniel is amazing. I hired Corniel for a 25,000 sf corporate office restoration. Not only did they do a fantastic job, they finished 4 weeks ahead of schedule and on budget.
Alice Lewellen
We remodeled 3 bathrooms and Ruben was amazing. Everything we asked for, he made sure we were satisfied. Even when I changed my mind or asked for an additional thing, Waldy made it happen. We could easily contact him every day, and he always responded ASAP.Waldy is very experienced and knowledgeable, even offering helpful suggestions.
Frequently Asked Questions
Do I need a permit for a bathroom renovation in NYC?
A bathroom remodel in New York may require permits, depending on the scope of work. Plumbing relocation, electrical changes, wall modifications, ventilation, or work affecting building systems should be evaluated by the appropriate licensed professionals before a filing type is assumed. Building requirements vary. Confirm the alteration agreement, insurance documentation, protection plan, and submission requirements for the specific co-op or condo.
What does a luxury bathroom remodel cost in Manhattan?
A site-specific bathroom budget should account for the approved layout, existing plumbing and substrate conditions, waterproofing, fixtures, tile complexity, glass, electrical and ventilation work, building requirements, and required professional coordination.
Can I do a wet-over-dry bathroom remodel in Manhattan?
Many buildings restrict placing wet areas over dry rooms below. Feasibility depends on building rules, plumbing stack locations, and what’s under your unit; keeping wet zones near existing lines is usually the safest path.
How long does construction take?
The schedule depends on design completion, building review, required filings, procurement, access, discovered conditions, inspections, and the approved construction scope. Confirm these inputs before establishing a working duration.
What’s the difference between a cosmetic refresh and a gut bathroom renovation?
A gut bathroom renovation removes finishes and may expose plumbing, electrical, substrate, ventilation, or waterproofing conditions; a cosmetic refresh has a more limited scope. The appropriate approach depends on the owner’s goals, existing conditions, building rules, and professional evaluation.
Planning More Than a Bathroom?
From single-room updates to full apartment renovations, we help homeowners across Manhattan bring their vision to life. Explore our process, expertise, and renovation cost guide to get started.