Bathroom Remodeling in Park Slope — Brownstone & Co-op Renovations
Full gut renovations, tub-to-shower conversions, and prewar plumbing upgrades for Park Slope brownstones, co-ops, and condos. Alteration agreements, NYC DOB permits, and waterproofing handled in-house — licensed, insured, 5★ rated.
Bathroom Renovations Built for Park Slope's Rowhouses & Prewar Buildings
Park Slope bathrooms are unlike bathrooms anywhere else in New York. Most of the neighborhood's rowhouses went up between the 1880s and 1910s, and their bathrooms were carved out of hall closets and back extensions decades after the houses were built. Open the original plaster and you'll find cast iron waste stacks, galvanized supply lines at the end of their service life, out-of-level joists, and tile set on mortar beds that has been cracking for half a century. Renovating these bathrooms correctly takes a contractor who has opened these walls before — not one who treats a brownstone like new construction.
Dream Build Construction has renovated bathrooms across Park Slope — brownstone primary baths near Prospect Park West, co-op bathrooms along 8th Avenue and Garfield Place, and condo renovations on 4th Avenue. As part of our bathroom remodeling NYC service, every Park Slope project includes waterproofing, NYC DOB permits, and — in co-op and condo buildings — the complete board approval package. We also provide full general contracting in Park Slope, from kitchens to whole-floor gut renovations.
Licensed, insured, and 5★ rated on Google. Call 929-842-1717 for a free written estimate at your Park Slope home.
Bathroom Remodeling Services in Park Slope
Full Gut Renovations
Demolition to the studs and joists, releveling of out-of-flat brownstone floors, all-new plumbing and electrical, waterproofing, and finishes.
Tub-to-Shower Conversions
Replace a heavy cast iron tub with a curbless walk-in shower — the single best space upgrade for a narrow brownstone bathroom.
Prewar Plumbing Upgrades
Cast iron and galvanized branch lines replaced with copper, PEX, and code-approved PVC by licensed NYC plumbers — coordinated with neighbors and supers in co-op buildings.
Heated Floors
Electric radiant heat under tile — the upgrade Park Slope homeowners ask for most, and the cure for a drafty north-facing brownstone bathroom.
Custom & Period Tile
Modern porcelain and marble, or faithful re-creations of hex, basketweave, and subway tile that belong in a 1900s Park Slope rowhouse.
Waterproofing Membrane
Full Schluter KERDI or RedGard waterproofing on every wet area before tile — essential when a neighbor's ceiling sits directly below your shower.
Board Approvals & Alteration Agreements
Complete alteration packages for Park Slope co-ops and condos — drawings, insurance certificates, permits, and schedules, ready for board review.
DOB Permits & Inspections
We file all required NYC DOB permits in-house, schedule inspections, and obtain final sign-off. You don't lift a finger.
What Makes a Park Slope Bathroom Renovation Different
A bathroom renovation in Park Slope is shaped by three things most contractors never deal with: the age of the housing stock, the approval process in co-op and condo buildings, and the Park Slope Historic District. We plan for all three before demolition day — which is why our projects don't stall mid-build.
1880s–1910s Brownstones
Park Slope's rowhouses hide a century of improvised plumbing behind their plaster. Original cast iron stacks are often rotted at the hub, joists were notched by generations of plumbers, and floors can be out of level by an inch or more across a small bathroom. We open the floor, assess the stack and joists honestly, and rebuild a flat, sound, fully waterproofed substrate before any tile goes down.
Where the original details are worth keeping, we keep them: vintage hex and basketweave floors can be restored or re-created tile for tile, cast iron tubs reglazed, and high wainscoting rebuilt — or we take the room fully modern. Either way, the plumbing behind the walls is brought up to current code.
Co-op & Condo Boards
Renovating in a Park Slope co-op means an alteration agreement before any work starts. Boards typically require scaled drawings, the contractor's license, certificates of insurance naming the building, DOB permit applications, and a realistic schedule. Many enforce a wet-over-dry rule — you generally cannot expand a bathroom's wet area over a neighbor's bedroom or living room below.
We prepare the entire package, carry the insurance limits boards demand, respect building work hours, and protect hallways and stairs daily. Supers and managing agents know us by name — and that goodwill keeps projects moving.
Park Slope Historic District
Much of the neighborhood sits inside the Park Slope Historic District, one of the largest landmark districts in New York City. The good news: interior bathroom work generally does not require Landmarks Preservation Commission approval. The catch: anything that touches the exterior — a new exhaust vent through a street-facing wall, a changed window in a rear extension visible from the street — can trigger LPC review.
We design vent runs and window plans to avoid LPC filings where possible, and handle the paperwork when they're unavoidable, so your permit timeline stays predictable.
We bring the same prewar playbook to neighboring landmark blocks — see our bathroom remodeling in Brooklyn Heights — and to every other service we offer in the neighborhood, from kitchen remodeling to full brownstone renovations with our general contracting team.
Your Park Slope Bathroom Renovation — Step by Step
On-Site Consultation
We assess your bathroom, the condition of the plumbing stack, joist access, and — in co-ops and condos — your building's alteration requirements. Free, no obligation.
Design & Fixed Quote
Layout, materials, and a written fixed-price contract with full itemization. For board buildings, we assemble the complete alteration package at the same time.
Approvals & Permits
NYC DOB permits typically take 2–3 weeks; co-op board review runs 2–6 weeks in parallel. We file everything in-house and chase every signature.
Construction & Sign-Off
3–5 weeks of construction with daily cleanup and building protection. We close out with final inspections, DOB sign-off, and a walkthrough together.
What a Bathroom Remodel Costs in Park Slope
Most Park Slope bathroom remodels land between $25,000 and $65,000. Where your project falls depends on three things: whether the plumbing stack and branch lines need replacement, whether the layout changes, and the materials you choose. Here's how the typical ranges break down.
Same Layout, New Everything Visible
New tile, vanity, toilet, lighting, and fixtures in the existing footprint. Tub reglazed or replaced in place. Typical for smaller co-op and condo bathrooms where the plumbing locations stay put.
Gut to the Studs
Complete demolition, new in-room plumbing and electrical, full waterproofing, custom tile, glass shower enclosure, and optional heated floors. The most common scope for Park Slope brownstone and co-op bathrooms.
Reconfiguration & High-End Finishes
Cast iron stack replacement, layout changes, marble or natural stone, radiant heat, period tile re-creation, and custom millwork. For larger primary baths and combined bath-and-laundry projects.
What pushes Park Slope budgets up isn't vanity choices — it's what's behind the walls: a rotted stack that must be replaced floor-to-roof, wet-over-dry rules that constrain the layout, board insurance requirements, and hand-carrying materials up a rowhouse stoop with no elevator. We price all of it up front in a written, itemized, fixed-price estimate — request yours here or call 929-842-1717.
Why Park Slope Homeowners Choose Us
Brownstone & Prewar Expertise
20+ years opening prewar walls in Brooklyn. We know what an 1890s rowhouse hides — and we budget and schedule for it instead of surprising you mid-project.
Co-op Board Fluency
Alteration agreements, certificates of insurance, wet-over-dry compliance, building work rules — we've cleared boards across Park Slope and prepare packages that get approved.
Permits & LPC Handled In-House
NYC DOB filings, inspections, and Landmarks paperwork when exterior work requires it — all managed by us, with no expediting surprises on your invoice.
Fixed-Price Contracts
The price we quote is the price you pay. Every scope item — including stack contingencies — is documented in writing before demolition begins.
Bathroom Remodeling in Park Slope — FAQ
Related Services & Neighborhoods
Ready to Renovate Your Park Slope Bathroom?
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Brownstone, co-op, or condo — we'll walk the space, check the stack, and hand you a written fixed-price estimate. Call, fill out the form below, or reach us through our contact page. We respond within 24 hours.
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