New York City roofing is its own discipline. The vast majority of residential and commercial buildings in Brooklyn, Manhattan, Queens, and Staten Island have flat or low-slope roofs, and they fail in specific ways: ponding water, failed seams, deteriorated flashing at parapets and bulkheads, and clogged drains. M&M GC Contractor Inc has been replacing and repairing roofs across the three boroughs since 2001.
We install EPDM rubber, TPO, and modified bitumen systems for flat roofs, and architectural shingles for pitched roofs on Staten Island homes and elsewhere. Every roof gets proper drainage, sealed penetrations, and rebuilt flashing — the details that determine whether a roof lasts 10 years or 30.
Flat roofs are a different trade
Flat roofing lives or dies on the details. We strip failed systems to the deck, replace rotted decking, install tapered insulation where ponding is a problem, and fully adhere or mechanically fasten the new membrane. Parapet walls get new coping and flashing; bulkheads, skylights, vents, and drains get sealed and flashed as part of the system, not as afterthoughts.
We also bring roofs up to code on drainage and ensure scuppers and drains actually move water off the roof. Most of the emergency leak calls we get trace back to flashing or drainage that was skipped the first time.
Full breakdown here: Flat Roof Replacement in Brooklyn: Costs, Materials & NYC Rules.
Repairs, replacements, and honest assessments
Not every leaking roof needs a full replacement. If the membrane has life left and the problem is isolated — a failed flashing, a puncture, a clogged drain — we'll repair it and tell you how many years the roof likely has left. If the system is done, we'll show you why and price the replacement honestly.
We also handle the extras that come with NYC roofs: roof decks and access stairs, bulkhead rebuilds, parapet repointing, and skylight replacement — coordinated as one project instead of three separate contractors.
Why homeowners and businesses choose M&M
- Licensed & insured general contractor operating in New York City since 2001 — over two decades of finished jobs, not promises.
- Big jobs only. We do full renovations, kitchens, bathrooms, brownstones, waterproofing, roofing, commercial and exterior work. We don't do handyman calls, which means your project gets a real crew and real project management.
- In-house crews for demolition, framing, drywall, flooring, electrical and plumbing — fewer subcontractors, fewer delays, one accountable team.
- NYC building know-how: DOB permits, co-op and condo board packages, Landmarks Preservation Commission approvals, occupied-building logistics — we've done it hundreds of times.
- Direct line to the owner. Call (917) 251-9318 and you talk to the people actually running your job.
How your project runs, start to finish
- Consultation & site visit. We walk the space, listen to what you want, and flag anything structural, code-related, or permit-related up front.
- Detailed scope & estimate. You get a clear written scope and a firm price — no allowances hiding the real number, no surprise change orders later.
- Construction. Our in-house crews handle demolition through final finishes. The site stays clean, protected, and on schedule, with one point of contact throughout.
- Final walkthrough. We go through every detail together before sign-off. If something isn't right, we fix it. That's the "built on trust since 2001" part.
Proudly serving Brooklyn, Manhattan, Queens & Staten Island
We're a local contractor, not a lead broker. Our crews work every day across the three boroughs we serve:
- Brooklyn — Park Slope, Bay Ridge, Williamsburg, Bushwick, Flatbush, Brooklyn Heights, Bed-Stuy
- Manhattan — Upper East Side, Upper West Side, Harlem, Chelsea, Lower East Side, Washington Heights
- Staten Island — St. George, Stapleton, New Dorp, Tottenville, Great Kills, Annadale
If your project is in one of these boroughs, we'll come out, walk the space, and give you a straight answer on scope and price.
Related services: Kitchen Remodeling · Bathroom Remodeling · Full Gut Renovation · Brownstone Restoration · Waterproofing · Commercial Construction · Exterior Services
Common questions
- How long does a flat roof last in NYC?
- A properly installed EPDM or TPO roof typically lasts 20 to 30 years; modified bitumen runs 15 to 20. Lifespan depends heavily on installation quality, drainage, and maintenance — which is why the details matter more than the material brand.
- My roof leaks — do I need a full replacement?
- Not necessarily. Many leaks come from flashing failures, clogged drains, or isolated membrane damage, all repairable. We'll inspect the whole roof and give you an honest repair-vs-replace assessment.
- Do you work on pitched roofs too?
- Yes. We install architectural shingle systems on pitched roofs, common on Staten Island homes and parts of Brooklyn and Queens. Same approach: proper underlayment, flashing, and ventilation.