Roof Installations & Replacements on Long Island
Expert roof replacement services across Long Island — installed by a dedicated local crew that understands harsh coastal weather, nor’easters, and what New York homeowners need to protect their investment.
Why a Quality Roof Replacement Matters on Long Island
A complete roof replacement is one of the most significant investments you will make for your property. When properly specified and installed, a modern architectural asphalt shingle roof delivers 25–30 years of reliable performance. For residential and commercial properties across Long Island communities — from our home base in Manorville out to the twin forks and western Suffolk — a new roof represents the ultimate balance of structural durability, curb appeal, and property value.
Not all roofing materials are equal, and installation quality matters just as much as product choice for roofing contractors on Long Island. Local homes face unique weather patterns: high salt humidity that degrades cheap materials, intense coastal wind uplift that can exceed 100 mph during seasonal storms, and brutal freeze-thaw cycles in the winter that create ice dams. MJB Roofing & Siding uses premium, high-wind rated shingles and installs every single layer strictly to manufacturer specifications — which is exactly what keeps your lifetime warranty valid.
What’s Included in Our Structural Roof Replacement
- Complete tear-off of all existing layers of roofing down to the bare wood deck
- Full deck inspection and replacement of any rotted, sagging, or water-damaged sheathing
- Premium ice and water shield installation in all critical valleys, eaves, and chimney lines
- Heavy-duty synthetic underlayment applied over the entire remaining deck surface
- High-grade architectural shingles (30-year minimum lifetime ratings, Class 4 impact resistance available)
- New aluminum drip edge, starter strips, and ridge caps installed per strict structural code
- All roof penetrations (plumbing pipes, attic vents, chimneys) meticulously sealed with custom step and counter-flashing
- Rigorous site cleanup, rolling magnetic nail sweeps across lawns and driveways, and complete debris haul-away
Why Choose MJB for Your New Roof Installation
We bring years of field experience to every job site. We know exactly which roofing products hold up to New York's volatile seasonal changes and which ones fail prematurely — and we will always give you an honest, upfront assessment. Our installation crews are highly trained, fully licensed, and comprehensively insured. We don't hand your project off to unverified subcontractors; an expert team is on-site managing your home's transformation from the first tear-off to the final inspection.
Frequently Asked Questions
How long does a typical roof replacement take to complete?
Most residential roof replacements are completed in just 1 to 2 days, depending on the square footage and complexity of the roofline. Our crews work efficiently to ensure your home is never left exposed to the elements overnight.
What shingle brands do you install and recommend?
We work closely with industry-leading manufacturers like GAF, CertainTeed, and Owens Corning. These top-tier brands offer outstanding manufacturer warranties and produce architectural shingles proven to withstand heavy coastal winds.
Do I need a building permit for a full roof replacement on Long Island?
Permit requirements vary depending on your specific town or village municipality within Suffolk or Nassau County. As part of our comprehensive service, we can assist with or handle the local building permit paperwork required for your job.
Proudly Serving All Long Island Communities
From our central location in Manorville, we provide complete residential and commercial roofing installations across both the North and South Forks, the heavy commuter corridors of central Suffolk County, and neighboring Nassau locations.
Ready to Protect Your Home?
Call our team directly or request an inspection online. We provide clear, itemized estimates within one business day.