National Roofing Trenton | Roofing Services in Trenton, NJ 08609

We perform a detailed inspection of all flashing points—around chimneys, vents, and valleys—which are prone to corrosion from Trenton's moisture and temperature swings. If corrosion is found, we carefully remove the damaged material, prepare the surface, and install new, high-grade metal flashing sealed with durable, waterproof compounds to create a long-lasting barrier against leaks.

In Trenton, underlayment often fails due to prolonged moisture exposure from ice dams, wind-driven rain, or aging. We start by safely removing the affected shingles to assess the underlayment. We then replace any compromised sections with modern, synthetic underlayment that offers superior tear resistance and waterproofing, providing a robust secondary layer of protection before reinstalling your shingles.

Keep an eye out for interior water stains on ceilings or walls, especially after heavy rain, which can indicate flashing failure. Externally, look for rust streaks on flashing, missing or cracked sealant, or shingles that are curling or buckling, which can signal damaged underlayment underneath. We recommend a professional inspection if you notice any of these signs to prevent minor issues from becoming major repairs.