Trenton winters dump heavy snow on roofs that were never built for it. Older houses in Mill Hill and East Trenton often have 2x6 rafters spaced 24 inches apart. That setup sags when snow sits for weeks. We add collar ties and sister boards to stop the spread. Mercer County wants a permit once we touch the structure, so we pull those papers before we start cutting.
Cheap crews skip the sheathing check and just slap new shingles over cracked plywood. The next freeze-thaw cycle lets water in and the rot starts again. We pull the old layer, check every sheet, and replace any that show delamination. Then we use ice-and-water shield along the eaves because humid summers here make ice dams form fast when snow melts.
South Trenton row homes share walls, so one roof sag can push the next house out of plumb. We brace both sides before we cut anything. After the fix we run a chalk line across the ridge to make sure it stays straight. That step takes ten minutes but saves a callback six months later when the owner notices the lean.
Call 24/7 for emergency snow load repairs. We answer day or night and can be on site the same day if the roof is actively dropping.
Snow Load Roof Damage Repair Services We Offer
✓Emergency Snow Load Roof Inspection Trenton
We check for sagging trusses and cracked sheathing the same day you call. Fast report tells you if the roof needs immediate bracing.
✓Truss Reinforcement After Snow Damage
Add sister rafters and collar ties to stop further bending. Done with pressure-treated lumber that holds up in Mercer winters.
✓Snow Damaged Shingle Replacement
Tear off crushed shingles and install new 3-tab or architectural shingles with fresh underlayment in the damaged section only.
✓Commercial Flat Roof Snow Load Repair
Reinforce steel deck or wood joists on small commercial buildings in North Trenton. We work around business hours when needed.
✓Ice Dam Related Snow Load Repair
Fix water intrusion and roof deck damage after ice dams form from melting snow. Includes new ice-and-water shield at the eaves.
Snow Load Roof Damage Repair Cost in Trenton, NJ
| Service | Typical Range | What Affects It |
|---|---|---|
| Snow load roof inspection with report | Free | Includes attic measurements and photos. |
| Add collar ties and sister rafters | $1,200–$2,800 | Price rises with number of rafters that need work. |
| Replace sagging plywood sheathing | $800–$1,900 | Depends on how many sheets are delaminated. |
| Shingle section replacement after snow damage | $650–$1,400 | Covers tear-off, underlayment, and new shingles. |
| Full snow load repair estimate | Free | We come out, measure, and give a written number same day. |
Ranges are typical for Trenton, NJ and confirmed with an exact written quote before any work starts.
How it works
- 1
Safe Snow Removal
We clear the roof with roof rakes and soft shovels to cut the load fast. Takes two to four hours depending on how deep the snow sits.
- 2
Structural Check
We go into the attic and measure sag on every rafter. Any member more than 1 inch out of line gets marked for repair.
- 3
Add Supports
Sister boards and new collar ties go in while the roof is still clear. This step usually runs one full day on a standard Trenton house.
- 4
Roof Patch and Seal
Replace damaged sheathing, lay new underlayment, and shingle the section. Final inspection and permit sign-off the next day.
Pricing
Most snow load repairs in Trenton fall between $1,200 and $4,500.