Full tear off comes first on most Trenton jobs. Old layers trap moisture in our humid summers and let ice build up at eaves when winter hits. We use GAF Timberline HDZ shingles because they nail down tight and handle the freeze thaw cycles better than cheap three tab. Cheap crews skip the tear off and that leads to leaks inside two years.
Deck inspection catches the real problems. Many East Trenton homes from the 1920s have soft spots around the Trenton Battle Monument area where water sat for years. We replace bad plywood before any new material goes down. Mercer County requires a permit for full replacement and we pull it so the job passes inspection the first time.
Underlayment choice matters in this climate. We lay ice and water shield at least six feet up from the eaves and around all penetrations. Skip that step and you get leaks when snow melts fast after a cold snap. Synthetic underlayment goes over the rest of the deck because it breathes better than felt during hot summer installs.
Flashing and ridge vent finish the job right. We use preformed step flashing at walls and a ridge vent sized for the attic square footage. Poor flashing is the number one callback we see from other crews. Call 24/7 for emergency new roof installs when storm damage hits.
New Roof Installation Services We Offer
✓Full Tear Off New Shingle Roof
Remove every layer down to deck then install new shingles with upgraded underlayment. Done in two days on most Trenton homes.
✓Emergency New Roof After Storm
Fast replacement when wind or hail tears off sections. We board up first then complete the full install within 48 hours.
✓Metal Roof Installation
Standing seam or screw down panels over existing deck for homes that want longer life in hot summers.
✓New Roof for Commercial Building
TPO or modified bitumen on flat roofs for stores and offices in downtown Trenton. Includes proper slope and drains.
✓New Roof with Skylight Install
Add or replace skylights during new roof work so flashing stays watertight around the units.
New Roof Installation Cost in Trenton, NJ
| Service | Typical Range | What Affects It |
|---|---|---|
| New shingle roof on single story ranch | $7,800–$10,500 | Lower cost when deck is solid and access is easy. |
| New shingle roof on two story house | $9,800–$14,200 | Higher when steep pitch or two layers must come off. |
| Metal roof install on 1800 sq ft home | $13,500–$18,000 | Price rises with custom color or extra insulation. |
| Commercial TPO roof per square | $650–$950 | Varies by existing insulation condition and drain work. |
| Free estimate and roof inspection | 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 Visit And Measure
We walk the roof and attic same day. Measure twice and note any deck damage before giving the price.
- 2
Permit And Material Order
Pull Mercer permit and order shingles or metal. Delivery takes one to two days.
- 3
Tear Off And Deck Repair
Strip to bare deck. Replace soft plywood and clean everything before underlayment.
- 4
Install And Final Walk
Lay shield, shingles or panels, flashing, and ridge vent. Walk the job with you before cleanup.
Pricing
Most new roofs in Trenton run eight thousand to fifteen thousand dollars depending on size, pitch, and material.