Fast, Reliable Roof Replacement & Installation Across Fordham
Roof replacement in Fordham typically runs $8,500-$24,000 for flat-roof tenements and $12,000-$35,000 for larger multi-family buildings, with most jobs completed in 3-7 business days once permits clear. We’re Ridgeline Roofing Co. of New York City, and we’ve been working on Fordham’s pre-war brick buildings since 2016. Our crews know the difference between a Creston Avenue walk-up and a Decatur Avenue row house, and we understand that replacing a roof here means navigating NYC Department of Buildings permits, Local Law 11 parapet inspections, and the freeze-thaw cycles that tear apart flat membranes every winter. Call (866) 756-1978 and a live person will answer, 24 hours a day.
Why Ridgeline Roofing Co. of New York City Is Fordham’s Preferred Roof Replacement & Installation Company
We’ve been climbing Fordham roofs for over 42 years. Not storm-chasing. Not chasing the next county over. Our Roof Replacement & Installation team lives here, works here, and trains apprentices who’ll still be here in thirty years.
Fordham homeowners know our trucks. We’ve replaced built-up roofs on Valentine Avenue, re-membraned parapets on East 194th Street, and handled emergency tarping after nor’easters blew through the Bronx River corridor. Our reviews come from people who’ve watched us work on their neighbor’s building.
When you call (866) 756-1978, a live person answers. Nights, weekends, the middle of a storm. No voicemail trees. No “we’ll call you back between 9 and 5.” We understand that water coming through your ceiling at 11 PM doesn’t wait for business hours.
Our technicians are background-checked, uniformed, and trained to document every inspection with photos from your actual roof. Not a scary speech in the driveway. Actual photos of your actual parapet coping, your actual membrane condition, your actual drainage points. Then we explain what we found in plain language, and we give you a written estimate with the same number on the invoice.
Our Roof Replacement & Installation Services in Fordham
Flat Roofing
Flat roofing is what we do most in Fordham. The neighborhood’s 1920s-1940s brick tenements and walk-ups weren’t built with pitch in mind. They’re built with built-up tar-and-gravel or modified-bitumen membranes sitting nearly level, surrounded by masonry parapet walls that take the worst of every winter.
We install new modified-bitumen systems with reinforced flashing at parapet-to-roof junctions, the exact point where Fordham’s freeze-thaw cycles do their damage. Water pools on these low slopes, finds a crack, freezes, expands the crack, thaws, and does it again. By March, a pinhole becomes a channel. We recently replaced a 50-year-old built-up tar-and-gravel roof on a six-unit walk-up on Creston Avenue. The parapet coping stones were loose and the mortar had crumbled from freeze-thaw cycles, so we coordinated with a scaffold-license contractor, filed a DOB permit, and installed a new modified-bitumen membrane with reinforced flashing at the parapet-to-roof junction. The job took five days. The building hasn’t leaked since.
Full Roof Replacement
Full roof replacement in Fordham isn’t a shingle tear-off. It’s stripping decades of layered membranes, inspecting the underlying deck for rot, rebuilding parapet coping where mortar has failed, and installing a new waterproofing system that meets NYC DOB standards and Local Law 11 requirements.
A typical full replacement on a 5,000-square-foot Fordham tenement runs $15,000-$24,000, including permit filing, scaffold coordination, and parapet rebuilding. We handle the administrative overhead that out-of-town contractors often miss. If your building is flagged under FISP, we work with your registered architect or PE to document the parapet work. If it’s not flagged yet, we make sure it won’t be because of the roof.
Asphalt Shingles
Asphalt shingles are rare in Fordham, but they do appear on some attached row houses and the occasional detached home near the Bronx Zoo perimeter. When we install shingles here, we use CertainTeed and Owens Corning products rated for the Bronx’s wind exposure and temperature swings.
A shingle roof replacement on a Fordham row house typically runs $12,000-$18,000. We don’t substitute materials. What we specify is what arrives on the truck.
Metal Roofing
Metal roofing makes sense for Fordham homeowners who want longevity on a row house or small multi-family building. Standing-seam aluminum or steel resists the thermal cycling that destroys other materials, and it’s light enough for older framing.
We install Atlas and IKO metal systems where appropriate, always with proper underlayment and ventilation. A metal roof on a Fordham building runs $18,000-$35,000 depending on access, scaffolding needs, and whether parapet work is required alongside it.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Fordham
We’re authorized installers for seven manufacturer lines: GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. For Fordham’s flat roofs, we most often specify CertainTeed’s modified-bitumen systems and Owens Corning’s low-slope membranes, with IKO and Atlas products for specialized applications. We stock common membrane rolls, flashing, and coping materials locally, so we’re not waiting on deliveries while your roof is open. Every brand we install comes with the manufacturer’s warranty plus our own 90-Day Done Right Promise: if it’s not right, we come back and make it right. No paperwork, no arguing.
Common Roof Replacement & Installation Problems We See in Fordham Homes
- Parapet coping failure from freeze-thaw cycles. Water infiltrates through cracked parapet coping and open parapet-to-roof junctions, then freezes and expands the cracks over dozens of winter freeze-thaw cycles. By spring, the mortar is powder and the coping stones shift. We rebuild with waterproof mortar and install reinforced membrane flashing to break the cycle.
- Alligatoring and ponding on aging built-up roofs. Aging built-up tar-and-gravel roofs develop alligatoring and ponding due to low-slope drainage, leading to membrane failure and interior leaks. Fordham’s roof decks often sag slightly after ninety years, creating pools that never evaporate. We install tapered insulation during replacement to restore proper drainage.
- Unpermitted patchwork flagged during FISP inspections. Unpermitted patchwork by out-of-town contractors gets flagged during FISP inspections, forcing costly retroactive permit filings and rework. We’ve been called in to fix jobs where a Yonkers crew slapped membrane over problems without DOB permits, leaving the building owner with a violation and a leaking roof.
- Roof deck rot hidden beneath multiple membrane layers. Fordham’s pre-war buildings often have three or four roof systems stacked over decades. Water travels laterally between layers, rotting the deck while the top membrane looks intact. We strip to substrate, replace damaged decking, and install a single proper system.
Pricing for Roof Replacement & Installation in Fordham, NY
Here’s what roof replacement costs in Fordham’s market:
| Service | Typical Range in Fordham |
|---|---|
| Flat roof replacement (modified-bitumen, 3,000-5,000 sq ft) | $8,500-$16,000 |
| Flat roof replacement (larger tenement, 5,000-8,000 sq ft with parapet work) | $15,000-$24,000 |
| Built-up tar-and-gravel strip and re-membrane | $10,000-$18,000 |
| Parapet coping rebuild and flashing replacement (standalone) | $4,500-$8,500 |
| Asphalt shingle replacement (row house) | $12,000-$18,000 |
| Metal roofing (standing seam, row house or small multi-family) | $18,000-$35,000 |
| New construction roofing (flat membrane system) | $14,000-$28,000 |
What moves the number: DOB permit filing fees and expediting, scaffold rental for Local Law 11 buildings, the condition of underlying decking, and whether FISP compliance work is needed alongside the roofing. We quote everything upfront. The number on the estimate is the number on the invoice. Call (866) 756-1978 for a free written estimate.
We Also Serve Cities Near Fordham
Our crews work throughout the west Bronx. If you’re in Fordham or nearby Kings Bridge, Spuyten Duyvil, Morris Heights, or University Heights, the same live-answer phone line and same-day response applies. We’ve re-membraned roofs on Sedgwick Avenue in Kings Bridge, handled parapet repairs on Independence Avenue in Morris Heights, and replaced flat roofs near the Spuyten Duyvil Creek. Same standards, same promise, same phone: (866) 756-1978.
Serving Fordham, NY - Our Local Coverage Area
We’re based in the Fordham area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Roof Replacement & Installation in Fordham
Yes. Any roof replacement in New York City requires a Department of Buildings permit, and Fordham buildings with parapets over 25 feet tall may also need Local Law 11/FISP compliance documentation. We file the permit as part of every job, including drawings and engineer sign-off when required. If your building is in the FISP cycle, we coordinate with your architect or PE to make sure the parapet work passes inspection. Call (866) 756-1978 and we’ll check your building’s status.
Fordham’s flat roofs suffer more because water has nowhere to run off, so it sits in low spots, infiltrates cracks, and expands with each freeze. Suburban pitched roofs shed water; flat roofs trap it. The Bronx sees dozens of freeze-thaw cycles each winter, and Fordham’s low-slope tenement roofs experience concentrated damage at parapet junctions where ice wedges coping stones apart. We install membranes and flashing specifically rated for this cycling, not the standard products meant for milder climates.
If the roof is under 20 years old and the damage is isolated, a targeted repair with compatible modified-bitumen patches can buy 3-5 years. If it’s original 1930s built-up, or if you’re seeing widespread alligatoring, ponding, or interior leaks on multiple floors, replacement is the honest answer. We’ve done repairs on Creston Avenue buildings that held for four years, and we’ve stripped 50-year-old systems where patching would have been throwing money at gravel. We’ll photograph your roof and tell you which category you’re in. Estimates are free.
We most often specify CertainTeed’s modified-bitumen membranes and Owens Corning’s low-slope systems for Fordham’s flat roofs, with IKO and Atlas products for buildings with specific drainage or access challenges. These brands manufacture membranes rated for the temperature swings and UV exposure of New York City rooftops, and they back their products with warranties we can actually enforce. We don’t substitute brands mid-job. What we quote is what we install.
They can try, but it’s a costly mistake. Fordham’s pre-war brick tenements have flat roofs with failing mortar joints in parapet copings that must comply with NYC Local Law 11/FISP mandates-a requirement that does not apply across the Westchester border just two miles north. An out-of-town contractor unfamiliar with DOB filing, scaffold licensing, or FISP parapet-inspection mandates can leave you with an unpermitted job, a building violation, and water still coming through your ceiling. We’ve been called to fix these situations. The permit process adds time upfront, but it protects your building’s legal standing and your wallet from retroactive fines. We handle the paperwork. You get a roof that passes inspection. Call (866) 756-1978 to start the process.
Written by Sal Benedetto, Owner at Ridgeline Roofing Co. of New York City, serving Fordham and the Bronx since 2016.