What to Do When Your Roof Starts Leaking
The first hour matters. Here is what to do, what to avoid, and why the stain on your ceiling is not where the water is getting in.
Updated
Serving Hunterdon County, New Jersey

Hunterdon County Service Area
Roofing contractor serving Frenchtown, NJ. Roof repair, replacement and low-slope work for the borough's historic riverside buildings on the Delaware.
Photo: Doug Kerr from Albany, NY, United States / CC BY-SA 2.0
Frenchtown is a compact Delaware River borough with a well-preserved nineteenth-century core, connected to Pennsylvania by the Uhlerstown–Frenchtown Bridge and bordered by the Delaware and Raritan Canal towpath.
Buildings here stand close together on small lots, many combining commercial ground floors with residential above, and a high proportion have low-slope rear sections that are invisible from the street and responsible for most of the leaks.
Frenchtown Borough occupies a small riverside area in western Hunterdon County where the Delaware River forms the state boundary. Its main streets run back from the river, lined with nineteenth-century commercial and residential buildings, with the canal towpath and river frontage along its western edge.

Harrison Street with its storefronts and homes in Frenchtown, New Jersey
Photo: Doug Kerr from Albany, NY, United States / CC BY-SA 2.0
Local Building Stock
The borough's stock is largely nineteenth-century frame and masonry, closely spaced, with pitched street-facing roofs and lower-pitched or flat rear sections. Mixed-use buildings are common along the main streets. Rear ells, additions and porch roofs at shallow pitches are widespread, and many carry membrane or, problematically, shingles that were never appropriate for them.
Frenchtown work is frequently low-slope membrane replacement on rear sections, transition detailing between pitched and flat roofs, and repair on the borough's period pitched roofs.
Seasonal Conditions
The Delaware corridor holds moisture and channels wind along the valley, so exposed upper elevations catch more wind while the sheltered core stays damp and dries slowly. Freeze-thaw cycling works hardest on the shallow rear sections, where water sits longest before draining.
Across the region, winter cycles repeatedly above and below freezing rather than staying frozen. Water works into small gaps, freezes, expands and enlarges them — which is what wears at flashing joints and builds ice at the eaves.
Services
The full range is available here. These are the ones most often needed on local properties.
Targeted repairs for leaks, wind-lifted shingles, failed flashing and damaged roof penetrations.
Full tear-off and rebuild of the roofing system, from decking and underlayment through to ridge ventilation.
Urgent response for active leaks, storm-opened roofs and exposed decking, starting with stopping water entry.
Roofing for houses across Hunterdon County, from mid-century colonials to farmhouses and newer developments.
Low-slope and steep-slope roofing for commercial, retail, light industrial and multi-unit properties.
If your roof is open or actively leaking in Frenchtown, call (914) 906-5748 rather than waiting on a form, so we can treat it as urgent.
Our Process
The same sequence on every property, whatever the municipality.
Tell us what you are seeing — a stain, a missing shingle, a roof you know is old. Photographs help if you have them.
We assess the roof surface and, where access allows, the attic side, so the diagnosis is based on where water is actually travelling.
A plain explanation of what we found and why it matters, including an honest view on whether repair or replacement is the better use of your money.
Scope, materials and price in writing before any work begins, so you know exactly what is included.
Carried out with the property protected. Failed components are removed and rebuilt rather than covered over, and we talk to you before any scope changes.
Debris cleared, a magnetic sweep for nails, and a review of what was done and what the work revealed.
Neighbouring municipalities we also cover.
Low-slope membrane systems for additions, porch roofs, dormers and commercial buildings.
Learn moreTargeted repairs for leaks, wind-lifted shingles, failed flashing and damaged roof penetrations.
Learn moreFull tear-off and rebuild of the roofing system, from decking and underlayment through to ridge ventilation.
Learn moreLow-slope and steep-slope roofing for commercial, retail, light industrial and multi-unit properties.
Learn moreThe first hour matters. Here is what to do, what to avoid, and why the stain on your ceiling is not where the water is getting in.
Updated
A framework for deciding, including the situations where repair is clearly right and the ones where it is throwing money at a roof that is finished.
Updated
What gets checked, what the attic reveals that the roof surface cannot, and what a useful report should tell you.
Updated
Questions
Establish what is on it first. If it is shingled, that is almost certainly the problem, because shingles cannot shed water at that pitch. If it is an aged membrane, the failure is usually at seams, terminations or the junction with the pitched roof in front. Either way the repair is a proper low-slope system, not another patch.
Yes, with scheduling. Noise, access and any work over occupied space should be agreed in advance with you and, where relevant, your tenant, so the building keeps operating while the roof is done.
Mainly through humidity and shading. Roofs in the borough dry more slowly after rain than on open ground, which favours moss and algae and keeps gutter debris wet. It is a maintenance factor rather than a structural one.
Yes. We work across all 26 municipalities in Hunterdon County, from the Delaware River boroughs through the central farmland to the northern uplands.
Request an Estimate
Tell us what you are seeing and where the property is. The city field is for your property — it does not need to match the page you are on.
Tell us what you are seeing and we will take a look. You will get a clear explanation of what is wrong, what it needs, and what it will cost — in writing.