Fast, Reliable Roof Replacement & Installation Across Uniondale
A full roof replacement in Uniondale typically runs $12,000-$28,000 depending on size and deck condition, with most jobs completed in 3-5 days once Nassau County permits clear. If you’re calling from a Cape Cod or ranch home near Hempstead Turnpike or around the Hofstra University area, we’re usually on-site within 24 hours for an inspection. Call (866) 756-1978 - a live person answers, day or night.
We’ve been climbing Uniondale roofs since 2016. We know the ZIP codes: 11553, 11555, 11556. We know the postwar neighborhoods where entire blocks of Cape Cods and ranches were thrown up between 1947 and 1962 for returning veterans - and we know what hides beneath those aging shingles. Our Roof Replacement & Installation crews don’t guess. They photograph every deck, every vent, every layer of old material, and they show you what they found before a single nail goes in.
Why Ridgeline Roofing Co. of New York City Is Uniondale’s Preferred Roof Replacement & Installation Company
Uniondale homeowners don’t hire us for flashy trucks or loud promises. They hire us because we’ve been here, year after year, while storm-chasing outfits vanished after the last nor’easter. Over 42 years, we’ve replaced roofs on Hempstead Turnpike, on Charles Lindbergh Boulevard, in the Brentwood Villas section, and on the quiet side streets off Uniondale Avenue where neighbors still talk to each other across fences.
Our reviews from Uniondale customers mention the same things: we showed up when we said we would, we explained the skip-sheathing problem without talking down to anyone, and the price on the estimate matched the price on the invoice. One homeowner near the Nassau Coliseum site told us we were the only contractor who warned her about the salt-air degradation on her low-pitch dormers before she signed - not after.
Response time matters in Uniondale. When ice dams back up into your Cape Cod eaves during a February freeze-thaw cycle, you can’t wait a week. Our phones are staffed by a live person 24 hours a day, including weekends and holidays. Most Uniondale inspections are scheduled next-day.
We know the local inspectors. We know Nassau County’s online permit portal. We know which roofing materials hold up to the salt-laden winds that blow 8-10 miles inland from the Atlantic South Shore. That local knowledge keeps your job moving and prevents the costly delays that trap homeowners who hire out-of-county contractors.
Our Roof Replacement & Installation Services in Uniondale
Full Roof Replacement
Most Uniondale full replacements we do involve stripping two or three layers of old asphalt off original skip-sheathing - spaced boards that were never meant to carry modern shingles. On a Cape Cod in the Brentwood Villas section of Uniondale, our crew found skip-sheathing under three layers of old asphalt shingles. We removed everything, installed a full plywood deck over the boards, and then applied GAF Timberline HDZ shingles with corrosion-resistant fasteners to handle the salt-air exposure. The job took two extra days compared to a standard reroof, but the homeowner now has a weathertight system that will resist the coastal degradation that plagues Uniondale roofs.
Full replacement in Uniondale runs $12,000-$28,000. The wide range reflects deck condition, accessibility, and whether your home’s multiple roof planes require extra flashing and valley work.

Asphalt Shingles
Asphalt shingles remain the practical choice for Uniondale’s Cape Cods and ranches, but material selection matters more here than inland. We specify shingles with enhanced granule adhesion and install them with corrosion-resistant fasteners rated for coastal exposure. Standard fasteners rust prematurely in Uniondale’s salt-air environment, leading to lifted tabs and blow-offs during nor’easters. We install CertainTeed Landmark PRO and Owens Corning Duration lines with proper starter strips and ice-barrier membrane at eaves - critical given the ice dam history on Uniondale’s poorly insulated postwar attics.
Typical asphalt reroof on a 1,200-1,800 square foot Uniondale Cape Cod: $12,000-$18,000 if the deck is sound, $15,000-$22,000 if skip-sheathing overlay or replacement is needed.

Flat Roofing
Uniondale’s low-pitch dormers, additions, and some ranch-style garage roofs require flat or low-slope systems. We install modified bitumen and TPO membranes from Atlas and IKO with proper drainage detailing. Flat roofs in Uniondale fail faster when improperly vented - a common problem when skip-sheathing is covered without adding intake and exhaust airflow. We address ventilation as part of every flat installation, not as an afterthought.
Flat roof replacement on a typical Uniondale dormer or garage: $4,500-$9,000.

New Construction
For new builds and major additions in Uniondale, we install complete roofing systems from the deck up, engineered to current Nassau County code and designed for the local climate. We coordinate with your builder on permit submission and inspection scheduling to keep your project on track.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
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 Uniondale
We are authorized installers for seven manufacturer lines, and we stock the brands that perform in coastal Nassau County. For Uniondale homes, we most often recommend CertainTeed and Owens Corning asphalt shingles with enhanced wind and corrosion ratings, plus Atlas and IKO materials for flat and specialty applications. We don’t substitute materials without your written approval. What we specify is what arrives on your roof. Our relationships with regional distributors mean we can source replacement shingles for warranty claims or storm repairs without the month-long waits that plague less established contractors.
Common Roof Replacement & Installation Problems We See in Uniondale Homes
- Granule loss from salt-laden nor’easter winds accelerates shingle aging on Uniondale’s low-pitch dormers and multiple roof planes. We see 15-year shingles failing at year 10 near the South Shore exposure zone. Our inspections document granule retention and recommend replacement before leaks start.
- Freeze-thaw cycles create ice dams along poorly insulated Cape Cod eaves, causing recurring leaks at fascia and interior ceilings. We install ice-barrier membrane and evaluate attic ventilation as part of every replacement to break this cycle.
- Original skip-sheathing under multiple shingle layers hides deck rot and makes proper ventilation impossible, leading to premature failure of the replacement roof. We find this on roughly half the Uniondale homes we inspect. Covering it with new shingles is a shortcut we don’t take.
- Corroded fasteners and flashing from decades of salt-air exposure weaken the entire roof system. We replace all metal components with coastal-rated materials during full replacement, not just the visible shingles.
Pricing for Roof Replacement & Installation in Uniondale, NY
| Service | Typical Range in Uniondale | What Affects Cost |
|---|---|---|
| Asphalt shingle reroof (deck sound) | $12,000 - $18,000 | Square footage, layers to remove, dormer count |
| Asphalt shingle reroof (skip-sheathing repair) | $15,000 - $22,000 | Plywood overlay or full deck replacement, accessibility |
| Metal roofing | $22,000 - $38,000 | Panel type, complexity, underlayment system |
| Flat/low-slope replacement | $4,500 - $9,000 | Membrane type, insulation, drainage details |
| Full replacement with multiple planes | $18,000 - $28,000 | Valley length, flashing scope, chimney work |
These ranges reflect actual Uniondale jobs we’ve completed in the past 24 months. The higher end accounts for skip-sheathing overlay, which we encounter on roughly half of local inspections. We provide no-hassle upfront pricing: the number on your written estimate is the number on your invoice. No surprises. No change orders unless you request additional work. Call (866) 756-1978 for a free inspection and exact quote.
We also offer a permanent 5% Senior and Veteran discount, plus $50 off any repair over $250.
We Also Serve Cities Near Uniondale
Our crews work throughout central Nassau County, including Uniondale and the surrounding communities of East Garden City, Hempstead, East Meadow, and Garden City. Same standards, same live-answer phones, same written 90-Day Done Right Promise. If you’re on the border between towns, we’ll schedule your inspection from the closest crew to keep response time tight.
Serving Uniondale, NY - Our Local Coverage Area
We’re based in the Uniondale 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 Uniondale
Uniondale’s Cape Cod and ranch homes were built with skip-sheathing - spaced boards, not solid plywood - which cannot support modern shingles or provide adequate ventilation. We find it on about half our Uniondale inspections, usually hidden under two or three layers of old shingles. Installing new roofing over skip-sheathing voids most manufacturer warranties and guarantees premature failure. Call (866) 756-1978 and we’ll show you exactly what your deck looks like - estimates are free.
Yes. Uniondale sits 8-10 miles from the Atlantic South Shore, close enough for salt-laden nor’easter winds to accelerate granule loss and corrode standard fasteners. We specify coastal-rated shingles and corrosion-resistant fasteners for every Uniondale job. Inland locations 20 miles north see noticeably slower degradation. If your current roof is failing earlier than expected, salt exposure is likely the cause.
Nassau County requires a permit and mandatory inspection for virtually all roof replacements, including straightforward shingle-overs. Contractors unfamiliar with the county’s online portal and inspection scheduling routinely lose days waiting on approvals. We’ve worked with Nassau County inspectors for over 42 years and know how to keep paperwork moving. We handle permit submission as part of every job - you don’t chase paperwork.
Every two to three years, and annually after age 20. Nassau County’s winter freeze-thaw cycles - temperatures crossing 32°F repeatedly from December through March - stress shingles, flashing, and sealants. Ice dams form along the low-insulation eaves common in Uniondale’s older Cape Cods, causing hidden leak damage. Our $89 Seasonal Tune-Up includes a photo-documented inspection with images from your actual roof, not the driveway. Call (866) 756-1978 to schedule.
Yes, metal roofing performs exceptionally well in Uniondale’s coastal environment. We install standing-seam and metal shingle systems from leading manufacturers, properly grounded and fastened to resist salt corrosion. Metal costs more upfront - typically $22,000-$38,000 for a Uniondale home - but carries 40-70 year lifespan ratings and eliminates the granule-loss problem entirely. If you plan to stay in your home long-term, it’s worth considering. We’ll give you a free second opinion on any written estimate you’ve already received.
Ready to get your Uniondale roof done right? Call (866) 756-1978 now. A live person will answer, day or night, and we’ll schedule your free inspection - usually next-day. We back every job with our written 90-Day Done Right Promise: if it’s not right, we come back and make it right. No paperwork. No arguing. That’s how we’ve worked since 2016.
Written by Sal Benedetto, Owner at Ridgeline Roofing Co., serving Uniondale and Nassau County since 2016.