Roof Replacement in Metuchen, NJ
Full asphalt shingle roof replacement starting at $7,600. Free written estimate.
About this service
A roof replacement is a full removal of the existing shingles, underlayment, and worn flashings down to the wood decking, followed by a fresh weatherproofing assembly and new shingles. All American Roofing performs residential asphalt shingle replacements in Metuchen and surrounding Middlesex County, NJ towns, and we always provide a written, itemized estimate before any work begins.
What's included
- Complete tear-off of existing shingles, underlayment, and old flashings
- Inspection of the plywood or board decking with replacement of any rotted sections
- Synthetic underlayment across the entire deck
- Self-adhering ice and water shield at eaves, valleys, and roof penetrations
- New aluminum or galvanized drip edge at eaves and rakes
- New step and counter-flashing at walls, dormers, and chimneys
- Architectural asphalt shingles installed to manufacturer specification with proper ridge ventilation
- Permit pull, jobsite cleanup, and a final walkthrough
Pricing
Asphalt shingle roof replacements start at $7,600. The final price depends on roof square footage, pitch, the number of existing layers to tear off, decking condition once exposed, the shingle grade selected (architectural, designer, or impact-rated), chimney and skylight flashing scope, and ventilation upgrades. Every project gets an itemized written estimate.
When you need a new roof
- The roof is at or past its rated lifespan (typically 20-30 years for asphalt)
- Widespread shingle curling, cracking, or blistering
- Significant granule loss, with granules collecting in gutters or at downspout splash blocks
- Multiple active leaks, or repeated repairs to the same area
- Sagging deck lines, daylight visible through the attic boards, or damp insulation
- Storm or hail damage that has compromised a large portion of the field
How it works
- Free inspection. We climb the roof, photograph the field, flashings, valleys, and penetrations, and check the attic for ventilation and moisture clues.
- Written estimate. You receive an itemized proposal listing materials, scope, allowances for decking replacement, and pricing.
- Schedule and permit. We pull the building permit from your municipality and confirm a start window.
- Tear-off and install. Old roof is removed, decking inspected, ice and water shield and underlayment laid, flashings installed, and shingles nailed per manufacturer specification.
- Final walkthrough. Site is cleaned, the municipal inspection is completed, and you receive your warranty paperwork from the shingle manufacturer.
Roof replacement in Middlesex County, NJ
Middlesex County roofs deal with a wide range of weather: nor'easters and ice dams in winter, heavy spring rains, summer thunderstorms with damaging straight-line winds, and the occasional hurricane remnant in early fall. Much of the local housing stock - center-hall colonials, Cape Cods, and split-levels in Metuchen, Edison, Woodbridge, Iselin, Piscataway, and South Plainfield - was built between the 1950s and 1990s and is now reaching the second-roof or third-roof stage. Replacing on the right schedule prevents leak damage to plaster, drywall, and insulation that often costs more than the roof itself.
Frequently asked questions
What does a new roof cost in Middlesex County, NJ?
Roof replacements start at $7,600. The final number depends on roof square footage, pitch, the number of existing layers to tear off, decking condition once exposed, the shingle grade selected, and any flashing or ventilation upgrades. Every project gets an itemized written estimate before work begins.
Do you tear off the old roof or install a layover?
A complete tear-off is the industry standard. Installing a second layer of shingles over an existing roof voids most manufacturer warranties, hides rotten decking, adds dead load, and shortens the new roof's lifespan.
What shingle types are available?
The four common asphalt categories are 3-tab (entry-level, ~25 year rating), architectural or dimensional (the modern standard, typically 30-year limited warranty), designer or luxury (slate-look or cedar-shake-look profiles), and impact-rated (Class 4 UL 2218) shingles for hail-prone exposures. Each has a different manufacturer warranty published by the shingle maker.
How long does a roof replacement take?
Most single-family residential roofs are completed in a small number of working days, depending on square footage, pitch, weather, and complexity (valleys, dormers, skylights). Larger or steeper roofs and full deck replacement take longer. We give a project-specific timeline in writing.
Do I need a permit to replace my roof in NJ?
Yes. New Jersey requires a building permit for roof replacement under the Uniform Construction Code. The permit is pulled from the local construction office (Metuchen, Edison, Woodbridge, etc.) and inspected on completion. We handle permitting as part of the project.
What goes underneath the shingles?
A typical assembly includes synthetic underlayment across the entire deck, self-adhering ice and water shield at eaves, valleys, and around penetrations (NJ code generally requires it from the eave to a point 24 inches inside the warm wall), drip edge metal at eaves and rakes, and proper step and counter-flashing at walls and chimneys.
What is ridge ventilation and why does it matter?
Ridge ventilation is a continuous vent installed along the peak of the roof that lets hot, moist attic air escape while soffit vents draw cool air in. Balanced intake and exhaust extends shingle life, reduces ice damming in winter, and is required by most shingle manufacturer warranties.
What if the deck is rotted underneath?
Once the old roof is off we inspect the plywood or board sheathing. Soft, delaminated, or water-damaged sections are replaced with new CDX plywood that meets code thickness for the rafter spacing. Decking replacement is typically priced per sheet and shown on the final invoice.
Can a roof be replaced in the winter?
Asphalt shingles can be installed year-round in NJ when conditions allow. In cold weather, hand-sealing of starter, ridge, and exposed nails is best practice because the self-sealing strip activates from sun heat. Snow, ice, and high winds will pause work for safety.
What warranty comes with a new roof?
The shingle manufacturer publishes a material warranty (typically 25 to 50 years on architectural shingles, lifetime-limited on designer lines) that you receive from the shingle maker. Underlayment, ice-and-water shield, and ridge vents have their own manufacturer warranties. Workmanship terms are stated separately on your written estimate.