Roof Replacement NYC
Licensed NYC roofing contractor with 20+ years replacing and re-roofing flat and low-slope roofs – full tear-offs, cost-effective overlay reroofing NYC systems, and premium SBS and PMMA membranes for townhouses, multi-family, and landmark buildings.
MC Construction Consulting specializes in the flat and low-slope roofs that define New York’s brownstones, multi-family walk-ups, and commercial buildings. Whether your roof needs a complete tear-off down to the deck or a fast, economical overlay, we install manufacturer-warrantied systems – Soprema SBS modified bitumen and Kemper liquid-applied PMMA – backed by structural roof deck repair and engineer-ready documentation.
- ✓ 20+ YEARS IN NYC
- ✓ SOPREMA & KEMPER SYSTEMS
- ✓ MANUFACTURER WARRANTIES
- ✓ IN-HOUSE ROOFING & SHEET METAL
What do our professional townhouse and commercial reroofing services include?
Our townhouse and commercial reroofing services include full flat roof replacement, cost-effective overlay systems, premium liquid-applied membranes, and dedicated structural roof deck repairs – all installed by a single licensed contractor under manufacturer warranty.
A flat roof is a layered system – deck, insulation, membrane, flashing, and drainage – and a lasting re-roof has to get every layer right. As an established general contractor NYC, MC Construction self-performs the roofing and sheet-metal scopes in-house, so the deck repair, the membrane, and the edge metal are installed by one accountable crew. Here are the four roofing systems we deliver.
A complete tear-off is the right call when the existing roof is saturated or has reached the end of its service life:
- Complete tear-off of old roofing layers down to the deck
- Structural roof deck inspection and repair
- Modern tapered insulation for proper R-value
- Slope correction and drainage rework for positive runoff
- New edge metal and flashing via metal roof systems NYC, coordinated with full waterproof roof replacement NYC
When the existing roof is sound and code permits, an overlay reroof installs a new system over the old one – faster and cheaper than a tear-off:
- New roof installed over the existing system where condition allows
- Recovery boards to create a clean, even substrate
- Faster installation with far less debris and disruption
- Lower cost without displacing building occupants
SBS modified bitumen is the workhorse of NYC flat roofs – multi-ply redundancy with proven durability:
- Torch-applied or self-adhered SBS membrane systems
- Multi-ply Soprema assemblies for built-in redundancy
- Mineral-surfaced cap sheets and reflective coatings
- Excellent resistance to NYC freeze-thaw and thermal movement
Liquid-applied PMMA membranes seal the details that sheet systems struggle with – and prepare a roof for terraces and gardens:
- Kemper and Soprema PMMA liquid-applied membranes
- Seamless waterproofing of penetrations, drains, and tie-ins
- Terraces, balconies, and patio decks rated for foot traffic
- Root-resistant base layers for green roofs and roof gardens
How is the total flat roof replacement cost NYC calculated for commercial properties?
The total flat roof replacement cost NYC depends on four factors: the roof’s square footage, the number of existing layers that must be torn off, the condition of the structural deck beneath them, and the membrane system you choose – SBS modified bitumen versus liquid-applied PMMA.
The single biggest cost driver is tear-off versus overlay. A full tear-off carries the labor and disposal cost of stripping the roof to the deck, plus any structural deck repair uncovered in the process – but it resets the roof’s service life completely. An overlay reroof skips the demolition where the existing roof is sound, which is why the roof replacement cost NYC for an overlay is typically well below a comparable tear-off. The membrane choice then layers on top: multi-ply SBS and premium Kemper PMMA sit at different price points for different performance needs.
MC Construction removes the guesswork from that number:
- Detailed, itemized estimates that separate tear-off, deck repair, insulation, and membrane
- Shop drawings and system submittals so you know exactly what is being installed
- Independent third-party inspections available to verify installation quality
- Manufacturer warranty registration on completed Soprema and Kemper systems
The result is a roof budget you can defend to a board or an owner – no surprise change orders once the old roof comes off.
When do you need an emergency roof repair NYC instead of a complete overhaul?
An emergency roof repair NYC is the right response to a sudden, localized leak from a storm or mechanical damage, while a complete replacement becomes necessary once the roof’s insulation and deck are fully saturated with trapped moisture across the field.
The deciding factor is whether the damage is local or systemic. A punctured membrane, a wind-lifted flashing, or a single failed drain is a contained problem – we can isolate it, dry it out, and execute a durable flat roof repair NYC that buys the roof years of additional life. But when a moisture survey shows water has spread through the insulation and reached the deck, patching only chases the leak around the roof while the substrate keeps rotting underneath.
This is why leak investigation comes first. We trace the actual water path – which is rarely directly above the interior stain – before recommending repair or replacement. And because these are occupied townhouses and apartment buildings, we respond fast on emergency calls: temporary watertight protection goes on immediately to stop interior damage, and the permanent repair or re-roof follows on a planned schedule.
How do our New York roof repair techniques prepare a building for green roofs or terraces?
Preparing a roof for a green roof or terrace requires installing seamless liquid-applied membranes – Kemper and Soprema PMMA – with the highest available root resistance, then overlaying traffic-rated coatings that withstand heavy pedestrian use.
A planted or occupied roof punishes a membrane far harder than an empty one: constant moisture, root pressure, soil weight, and foot traffic. Standard sheet roofing is not built for it. Our New York roof repair and re-roof approach for these projects is built around seamless liquid systems and the details that make a rooftop livable:
- Seamless, root-resistant PMMA membranes as the waterproofing base for green roofs and roof gardens
- Traffic-coating systems rated for terraces, balconies, and patios
- Stone and concrete patio pavers set over protected, drained assemblies
- Integration of parapet and roof-edge waterproofing into the deck membrane
- Drainage layers and slope detailing to keep water moving off the assembly
Where the rooftop work meets the building’s masonry — parapets, bulkhead walls, chimney bases — we tie the roof membrane into the wall with our licensed masonry contractor and brownstone restoration crews, finish exposed wall surfaces with stucco repair where needed, and reinforce heavy planter or pergola loads with structural steel fabrication tied back to structural concrete foundations. The roof, the wall, and the structure are detailed as one waterproof assembly.
Why choose MC Construction as your townhouse roofing contractor in NYC?
Choose MC Construction because we field integrated roofing, masonry, and sheet-metal crews – so the entire operation, including scaffolding and sidewalk sheds for pedestrian protection, is delivered by one accountable contractor under full manufacturer warranty.
A re-roof on an occupied NYC building is more than the membrane – it’s the deck, the edge metal, the wall tie-ins, and the public protection at street level. Splitting that across trades is where leaks and delays start. We keep it all in-house.
Two decades replacing and re-roofing flat and low-slope roofs across Manhattan and Brooklyn – brownstones, multi-family walk-ups, landmark buildings, and commercial properties.
As trained installers of Soprema SBS and Kemper PMMA systems, we register manufacturer warranties on completed roofs – protection a handyman re-roof can never offer.
Roofing, sheet metal, and masonry tie-ins performed by our own crews – one schedule, one warranty, and no finger-pointing between subcontractors when a detail leaks.
We handle scaffolding, roof access, and sidewalk sheds for pedestrian protection, plus DOB permit coordination – the whole operation managed end to end.
Re-roofing buildings across all five boroughs
MC Construction replaces and re-roofs flat and low-slope roofs throughout New York City – Manhattan, Brooklyn, Queens, the Bronx, and Staten Island. Our roofing and sheet-metal crews are based in Maspeth, Queens, and mobilized citywide for tear-offs, overlays, emergency leaks, and terrace build-outs.
Frequently Asked Questions
Can you install a new roofing system over an existing flat roof in NYC?
Yes – in many cases we can install an overlay reroof directly over an existing flat roof, which is faster and more economical than a full tear-off. This is possible when the existing roof is structurally sound, not saturated with trapped moisture, and within the number of roofing layers the building code permits.
Before recommending an overlay, we perform a moisture survey and condition assessment. If the existing system is dry and stable, we install recovery boards to create a clean substrate and apply the new membrane over it. If the survey finds widespread saturation or an excess of existing layers, a tear-off is the correct – and code-compliant – path instead.
What is Kemper waterproofing and why is it used for high-end terraces?
Kemper waterproofing is a liquid-applied PMMA (polymethyl methacrylate) membrane system. It is applied as a liquid that cures into a single seamless, fully bonded sheet with no laps or seams – which is exactly why it excels on high-end terraces, balconies, and roof gardens.
Terraces are full of the details that defeat sheet membranes: drains, planters, door thresholds, railing posts, and tight corners. A liquid PMMA membrane wraps all of them seamlessly, cures fast, and stands up to constant foot traffic and standing water. It also provides the root-resistant, durable base that a green roof requires, which is why we specify Kemper and Soprema PMMA for premium rooftop living spaces.
Do roofing replacements in NYC require DOB permits and scaffolding?
In most cases, yes. A flat roof replacement in NYC typically requires DOB permits, and depending on the building’s height and location, the work usually requires roof access staging and protective measures such as sidewalk sheds to shield pedestrians below.
MC Construction manages this entire side of the project. We coordinate the required DOB permits, set up compliant roof access and scaffolding, and install sidewalk sheds where the building edge faces a public walkway – so the roof replacement proceeds safely and in full compliance without the owner having to manage separate permit and safety vendors.
Ready to replace, re-roof, or stop a leak?
Tell us about your roof – its size, its age, and what you’re seeing. We’ll investigate, scope the right system, and give you an itemized estimate.