Roof Repair & Replacement in Manville, NJ

Hillsborough Roofing repairs and replaces roofs and siding on the compact borough lots of Manville, NJ. The borough sits at the confluence of the Raritan and the Millstone, and its housing stock has taken more water than almost anywhere else in Somerset County. That shapes what we look at when we get on a roof here.

Manville houses were built small, close, and low

The borough grew up around the Johns-Manville plant, and the housing followed the payroll: modest frame Capes, story-and-a-half bungalows, and small two-story workers' houses on narrow lots, most carrying a plain gable with almost no overhang.

Short overhangs mean rain lands hard against the fascia and the top siding course instead of being thrown clear. Narrow side yards mean two roofs draining toward the same three feet of ground. Both show up as rotted fascia, soaked corner boards, and gutters never sized for what they catch. Here we look at the edge before the field.

What the Raritan and the Millstone do to a house here

Flooding here is not an abstraction. Tropical Storm Doria in 1971 destroyed houses in Lost Valley. Hurricane Floyd in 1999 put twelve to seventeen feet of water into parts of the borough. In 2021 Hurricane Ida drove the Raritan to 27.66 feet, past the Floyd record. Lost Valley, the section between the two rivers reached by the Kyle Street tunnel and the Bridge Street crossing, sits on the floodplain and takes it worst.

None of that water comes from the roof, but it changes the roof. Houses that were raised, gutted, or rebuilt often carry new framing under old shingles, or a roof patched in a hurry while the inside was put back together. Siding gets replaced from the flood line down and never matched above it.

Post-flood roofs that were finished in a hurry

Recovery work gets done under pressure, and the roof is often the last line item. We find short nails, missing starter strip, step flashing reused instead of replaced, and ridge vent cut but never opened. All of it is fixable as repair.

Raised houses and the new geometry above them

When a house is lifted, the roof keeps its pitch but the exposure changes: more wind at the eaves, more sun on the south face, and gutters discharging onto a different grade. Downspout runs usually need rethinking at the same time.

The 1920s to 1940s Cape Cod roof

These are small, steep, and often carrying a dormer added later. The dormer cheek walls and their step flashing leak far more often than the field shingles. Repair means opening the wall junction properly, not caulking the seam.

Siding above and below the old water line

Half a wall of new vinyl under older vinyl is common here. A discontinued color sometimes matches and sometimes does not. When it does not, re-siding one full elevation reads better than a patched band.

Repair and replacement, weighed honestly on a Manville lot

A roof sound in the field and failing at one valley or one pipe boot gets repaired, and we will say so. A roof with granule loss across the whole south slope, brittle tabs that crack when lifted, and decking that flexes underfoot is not a repair candidate. On the tight lots here, replacement also means planning where the dumpster and the tear-off go before the crew arrives.

Either way, the underside matters. We check the attic for daylight at the ridge, staining on the sheathing, and whether the soffit vents were ever opened. Blocked intake and a hot deck chew through shingles early.

Before we quote a Manville roof

• Whether the house has been raised or rebuilt, and when the current roof went on
• Fascia and rake board condition, since short overhangs take the brunt of the runoff
• Step and counter flashing at every dormer, chimney shoulder, and wall junction
• Gutter and downspout sizing against the roof area draining into them
• Attic intake and exhaust, including whether the soffit vents were ever cut open
• Siding above and below any repaired band, and whether the color still matches
• Staging on a narrow lot: where the tear-off lands and how the yard gets swept

Roofing and siding work we do in Manville

• Roof Repair
• Roof Replacement
• Roof Leak Repair
• Emergency Roof Repair
• Storm & Hail Damage Repair
• Solar Panel Removal & Reinstall
• Skylight Replacement
• Roof Inspection
• Gutters, Soffit & Fascia
• Flat Roof Repair
• Siding Installation
• Vinyl Siding
• James Hardie Siding
• Siding Repair

Nearby towns

Bridgewater, Somerville, Montgomery, Branchburg, Belle Mead, Neshanic Station, Raritan, and Hillsborough itself.