Trenton homes from the 1920s through 1970s often have two or three layers of asphalt shingles still on the deck. That extra weight cracks rafters when summers hit 95 degrees and winters drop below freezing. I always pull everything down to the boards, check for rot around chimneys, and add ice-and-water shield along the eaves before new underlayment goes down. Mercer County wants a permit pulled for any full tear-off over 100 squares.
Hot humid air in summer makes shingles expand and trap moisture under the surface. By January the freeze-thaw cycle lifts the tabs and lets water into the attic. Cheap crews skip the drip edge and ridge vent, so the new roof fails in three winters. I run a full ridge vent on every job and use synthetic underlayment that breathes better than felt.
South Trenton and East Trenton row homes sit close together, so access for a dumpster and ladder trucks gets tight. I stage material on the street with city permission and finish most jobs in three working days. The last step is walking the new roof with the homeowner to point out every seam and flashing detail.
Storm Damage Timeline
After a bad wind or hail event I can start tear-off the same day if the deck is dry. Homeowners in Mill Hill usually see a full replacement done inside 72 hours when they call before noon.
Roof Replacement Services We Offer
✓Asphalt Shingle Roof Replacement Trenton NJ
Full tear-off and new 30-year architectural shingles installed with ridge vent in two to four days.
✓Emergency Roof Replacement Trenton NJ
Same-day tear-off and temporary or permanent roof install after storm damage when leaks hit the attic.
✓Metal Roof Replacement Over Shingles
Screw-down metal panels laid over existing shingles on garages and single-story homes in 24-48 hours.
✓Commercial Flat Roof Replacement Trenton NJ
TPO or EPDM membrane replacement on small commercial buildings with 10-year warranty material.
✓Cedar Shake Roof Replacement
New pressure-treated cedar shakes installed on historic homes near the State House with proper spacing.
Roof Replacement Cost in Trenton, NJ
| Service | Typical Range | What Affects It |
|---|---|---|
| Full asphalt shingle replacement 1500-2000 sq ft | $9,500–$14,000 | Two-story homes cost more due to access and extra underlayment. |
| Metal roof replacement on ranch house | $11,000–$16,500 | Screw-down panels over one layer of shingles. |
| Tear off third layer and new shingles | $12,000–$18,000 | Extra labor and disposal fees for multiple layers. |
| Emergency roof replacement after storm | $10,500–$17,000 | Same-day start adds crew and overtime. |
| Free roof replacement estimate | Free | Call Mon-Sat 7am-7pm or use 24/7 emergency line. |
Ranges are typical for Trenton, NJ and confirmed with an exact written quote before any work starts.
How it works
- 1
Site Check and Deck Inspection
I climb up, pull test shingles, and mark soft spots. Takes 45 minutes on most Trenton homes.
- 2
Permit and Material Drop
Pull Mercer permit same day, drop shingles and underlayment next morning.
- 3
Tear Off and Deck Repair
Remove all layers, replace bad plywood, add ice shield. One to two days.
- 4
New Roof Install
Lay synthetic underlayment, drip edge, shingles or metal, ridge vent. Finish same day.
- 5
Final Walk and Cleanup
Sweep yard, magnet for nails, show homeowner every detail before leaving.
Pricing
Most Trenton roof replacements land between $8,000 and $18,000. Size, stories, and material grade move the number.