Brooklyn's Flat Roof Specialists
Brooklyn's iconic brownstones, row houses, and multi-family buildings almost all share one thing: flat roofs. From the historic buildings of Park Slope to the commercial properties of Sunset Park, flat roofs are everywhere — and they need specialized care that general roofers often can't provide.
NYC Flat Roof Pros has been repairing and waterproofing Brooklyn flat roofs for over 15 years. We understand the unique challenges of Brooklyn's building stock — century-old brownstones with multiple layers of roofing, converted warehouses in Williamsburg, and new construction in Downtown Brooklyn.
🏠 Brooklyn Property Owner?
Whether you have a brownstone in Bed-Stuy, a multi-family in Flatbush, or a commercial building in Bushwick — we'll inspect your flat roof for FREE and tell you exactly what it needs.
Request Free Inspection →Brooklyn Building Types We Specialize In
Brownstones & Row Houses
Classic Brooklyn brownstones with flat or slightly sloped roofs. We repair without disturbing the building's character.
Multi-Family Buildings
2-6 unit residential buildings that need reliable waterproofing to protect all tenants below.
Commercial Properties
Warehouses, retail buildings, and mixed-use properties with large flat roof areas.
New Construction
Modern flat roof installations with TPO, PVC, or modified bitumen systems for new Brooklyn developments.
Common Brooklyn Flat Roof Issues
- Brownstone Roof Leaks — Old tar roofs on brownstones deteriorate and leak into top-floor apartments. We remove old layers and install new torch down systems.
- Parapet Wall Leaks — Brooklyn's row houses have shared parapet walls that are common leak sources. We waterproof and reflash all parapet connections.
- Ponding Water — Flat roofs with poor drainage accumulate standing water that accelerates membrane failure. We correct drainage and eliminate ponding.
- Roof Deck Waterproofing — Many Brooklyn buildings have rooftop decks that need proper waterproofing beneath to prevent interior damage.
- Multi-Layer Buildup — Older buildings often have 3-4 layers of roofing stacked up over decades. We strip to the deck and start fresh.
- Skylight Leaks — Brooklyn flat roofs often have skylights with aging flashing. We repair or replace skylight connections.
Our Brooklyn Flat Roof Services
Torch Down Roofing (Modified Bitumen)
The gold standard for Brooklyn residential flat roofs. Our 2-ply and 3-ply torch down systems handle NYC's freeze-thaw cycles and provide 15-20 year protection. Perfect for brownstones and row houses.
Building Waterproofing
Complete waterproofing solutions for Brooklyn buildings — from roof membranes to foundation walls. We stop water intrusion at every level, protecting your property and your tenants.
Roof Deck Waterproofing
Enjoying your Brooklyn rooftop? We install waterproof membranes beneath roof decks to ensure no water reaches the building below. Essential for any rooftop patio or deck installation.
Commercial Flat Roofing
Brooklyn's commercial buildings need roofing systems that can handle foot traffic, HVAC units, and extreme weather. We install TPO, EPDM, and modified bitumen systems for commercial properties of all sizes.
Brooklyn Neighborhoods We Serve
📞 Get Your Free Brooklyn Roof Estimate
Stop worrying about that leak. Get a professional assessment and a fair, no-pressure quote from Brooklyn's flat roof experts.
Get Free Estimate →Frequently Asked Questions — Brooklyn
How much does flat roof repair cost in Brooklyn?
Brooklyn flat roof repairs range from $400 for minor patches to $5,000-$8,000 for major section replacement. Full brownstone roof replacement typically costs $6,000-$12,000. Commercial buildings vary based on square footage. We provide free estimates with no obligation.
My brownstone has 3 layers of roofing. Do they all need to come off?
NYC building code allows a maximum of 2 roofing layers. If your brownstone has 3+ layers, they must be stripped to the deck before installing a new system. This actually produces a better result — we can inspect and repair the deck, install proper insulation, and start fresh with a system that'll last 20 years.
Can you repair a flat roof in winter?
Yes, but with some limitations. Torch down roofing can be installed in cold weather (it uses heat). However, some systems like hot-applied coatings work better in warmer temperatures. Emergency repairs can be done year-round. We'll advise you on the best timing for non-emergency work.
I want to build a roof deck. Do I need to waterproof first?
Absolutely. Before any roof deck installation, you need a proper waterproof membrane system underneath. We install the waterproofing layer, then you (or your deck contractor) can build the deck on top. This protects the building below and is required by code.
Do I need DOB permits for roof repair in Brooklyn?
Minor repairs (patching leaks, replacing small sections) don't require permits. Full roof replacements on buildings with 4+ units or over 3 stories typically need a DOB permit and sometimes a licensed engineer's sign-off. We handle all permitting as part of our service.