Roof Replacement Cost in NJ

Price ranges for roof replacement

Researched New Jersey market ranges, gathered from published contractor price guides and national cost surveys in October 2026. They are not our quote: your price comes from a free on-site estimate, and we will replace these ranges with our own rates.

• Architectural asphalt shingle roof replacement, installed (incl. tear-off of 1 layer): $300 to $1,500 per square (100 sq ft), typically about $575
• 3-tab asphalt shingle roof replacement, installed: $300 to $500 per square (100 sq ft), typically about $425
• Tear-off and disposal, first layer: $100 to $300 per square (100 sq ft), typically about $125
• Tear-off and disposal, two layers: $150 to $250 per square (100 sq ft), typically about $200
• Replace roof deck sheet (plywood/OSB): $75 to $120 each, typically about $97.50

Shingles by the square

Architectural shingles, the most common choice, range from $300 to $1,500 per square installed, with $575 typical, and researched prices at that level usually include tearing off one existing layer. Three-tab shingles range from $300 to $500, with $425 typical. A per-square price normally covers underlayment, ice-and-water membrane, drip edge, flashing, ventilation and labor as well as the shingles, so a quote that looks cheap per square may be leaving one of those out.

Tear-off: one layer or two

When tear-off is priced as its own line, removing a single layer of shingles typically runs $100 to $300 per square, with $125 typical. Many older homes have two layers, and removing both runs $150 to $250 per square, with $200 typical. Check whether a shingle price per square already includes tear-off before adding it on. Steep roofs, heavy old materials and limited space for a dumpster push tear-off toward the high end.

Decking

Decking can only be fully judged once the old roof is off. Each sheet of plywood that needs replacing runs $75 to $120. A clear quote states the price per sheet and how many sheets are included, if any, so the final bill is predictable even when rot is found.

What else moves the price

The number of squares is the biggest factor. After that come pitch, since steep roofs need more safety setup and slower work; height and stories; the number of valleys, dormers, chimneys and skylights; access for the dumpster and materials; and whether low-slope sections or new gutters are part of the job. A complicated cut-up roof can cost noticeably more per square than a simple gable of the same size.

How to read a roof replacement quote

• The number of squares, and the shingle line and style.
• Tear-off of how many layers, and disposal.
• Decking: price per sheet and any sheets included.
• Ice-and-water membrane, underlayment, drip edge and flashing listed.
• Ventilation: ridge vent, soffit vents or other.
• Gutters: removed and reinstalled, or replaced, and at what price.
• Warranty terms for the materials and the workmanship.