New construction roofing
Full roof systems on new builds, coordinated around your GC's schedule.
New Roof Installation
New Roof Installation for Long Island Homes
New builds, additions, dormers — roofed as a system from the deck up.
Short answer
New roof installation covers new construction, additions, dormers and garages where there is no existing roof to tear off. LaRocco Roofing & Siding installs the complete assembly — underlayment, ice-and-water shield, flashing, shingles and ventilation — to manufacturer specification so the material warranty holds. We serve Nassau County, Suffolk County and Queens, NY.
A new roof is not a pile of shingles. It's an assembly, and every layer has a job. Get the ventilation wrong and you cook the shingles from underneath and void the warranty. Skip the ice-and-water shield at the eaves and the first bad February finds the gap. Nail high, nail at the wrong angle, or nail with the wrong pattern and the first serious nor'easter takes the field off in sheets.
We install to manufacturer specification because that's what keeps the warranty enforceable and the roof on the house. As an Owens Corning Preferred Contractor, our installs are eligible for extended system warranties that a general contractor's roofing sub usually can't offer you.
Serving: Long Island / Nassau County / Suffolk County / Queens
What's included
Every new roof installation job covers
Additions and dormers
Tied into the existing roofline so the transition doesn't become the leak.
Garages and outbuildings
Detached structures roofed to the same standard as the house.
Complete system install
Underlayment, ice-and-water shield, drip edge, flashing, shingles and ridge.
Ventilation design
Ridge and soffit intake balanced to the attic volume, not guessed at.
Skylight installation
Curb-mounted or deck-mounted, flashed with the manufacturer's kit.
Permit handling
We pull the town permits and meet the inspector.
Warranty registration
Filed with the manufacturer so your coverage is on record from day one.
Our process
How we run a new roof installation job
The same five steps on every job, whether it's a cracked pipe boot or a full tear-off.
Free on-site inspection
We walk the roof, check the attic and photograph what we find. You see the same pictures we do — including the parts of your roof you can't get to.
A written, itemized quote
One clear number, broken down by material and labor. No pressure, no vanishing discount that expires tonight, no surprise change orders halfway through.
Permits, materials, scheduling
We pull the town permits, order the material and give you a firm start date and a realistic finish date for the weather we're working in.
Installation by our own crew
Property gets tarped and protected before a single shingle comes off. Most residential roofs are torn off and re-roofed in one to two days.
Clean-up and final walkthrough
Magnet sweep for nails, debris hauled away, then we walk it with you before we ask for final payment and hand over your warranty paperwork.
Recent projects
Recent work across Long Island
Real roofs, real addresses. Every one started with a free inspection.
Smithtown, NY
Full tear-off and architectural shingle replacement on a colonial — before and after.
Oyster Bay, NY
Stripped to the deck, new synthetic underlayment, then architectural shingles.
Jamaica, Queens
Underlayment down and the finished shingle field on a Queens re-roof.
FAQ
New Roof Installation — answered
What's the difference between installation and replacement?
Replacement means there's an existing roof to tear off first. Installation means there isn't — new construction, a fresh addition, a new dormer or a garage. The roof system itself goes on the same way; replacement just adds the demolition and disposal.
Do you work with general contractors and builders?
Yes. We work as the roofing trade on new builds and large renovations, and we schedule around the framing and dry-in dates rather than making your GC chase us.
Which shingle should I choose?
For most Long Island homes an architectural asphalt shingle is the right balance of wind rating, lifespan and cost. Designer profiles make sense on historic or high-visibility rooflines. On the coast, metal is worth a serious look. We'll bring samples and show you what's on your neighbors' roofs.
How important is attic ventilation really?
Genuinely important, and routinely ignored. Without balanced intake at the soffit and exhaust at the ridge, summer attic heat bakes the shingles from below and winter moisture condenses on the sheathing. It shortens roof life and most manufacturers make proper ventilation a warranty condition.
Free estimate
Free new roof installation quote, no obligation
No charge, no obligation, no high-pressure pitch. We look at the roof, send you the photos and tell you what it actually needs.
Nassau, Suffolk and Queens · Financing available