Ice Dam Repair in Rahway from $150. If the ceiling stains during a thaw rather than during rain, this is almost certainly what you have. Free inspection and a written quote.
Older Rahway houses are the ones to worry about, and for a specific reason: board sheathing with gaps, no ice barrier, and a roof space that was never air-sealed. That combination melts snow efficiently and then lets the meltwater straight in once it has backed up.
An ice dam is a heat problem wearing a roofing costume. Warm air escaping into the roof space melts the snow lying on the upper roof. That meltwater runs down to the eaves, which are cold because nothing heated sits under them, and refreezes there. Repeat for a week and you have a ridge of ice holding water behind it.



The roofing element prices like any other repair, $350 to $1,800. But be clear about what you are buying: an ice dam is caused by heat escaping into the roof space, and the repair that ends it is air sealing, insulation and ventilation. That is not roofing, we do not pretend it is, and no published New Jersey figure for it exists to quote you honestly. Age is the price driver here because the stock spans so much of it. Board sheathing on older center housing adds work that newer development does not have, and a quote that does not mention the deck has not established which one you own.
The roof side: an ice barrier membrane at the eaves where the covering is coming off anyway, the damaged courses, and the flashing or valley the water has been getting past.
Insulation and air sealing work in the roof space, which is the part that actually stops the melting. We will tell you what needs doing and that it is somebody else's trade rather than inventing a number.
One winter, usually. That is a legitimate thing to buy if you are selling or if money is tight this year, and it should be sold as what it is rather than as a fix.
The age spread means the first question in Rahway is simply how old the roof is, because it decides what is underneath. Older stock near the center can have board sheathing and no ice barrier; newer development has neither problem and fails at penetrations and details instead.
Worth knowing before you start ringing round, and worth acting on before the first freeze rather than after it.
Northern roofs do not fail steadily. They fail in the freeze and in the first thaw after it, which means every roofer in Union County takes the same calls in the same two weeks. A roof that could have been surveyed comfortably in October becomes a queue in January, and the repair that could have been planned becomes an emergency.
Start with the age of the roof, because in Rahway that varies more than anywhere else covered here.
Age decides where to look.
Newer development near the station has larger flat areas built properly with real fall, and those genuinely do fail at the membrane or a detail.
On the older housing the deck matters as much as the covering.
The older the chimney the more likely the actual fault is masonry rather than metal -- a cracked crown, open joints, or pointing that has gone.
Two different emergencies depending on the building.
Pre-war chimneys, and eaves with no ice barrier.
Flat roofs behind parapets. Access is the first problem.
Low ground, open water. Which way is the water going?
Post-war and often overlaid, so the eaves are buried.
Steep pitch. Specific details fail, not the field.
Rear additions and garages, and their junctions.
Built as a set, so the street is a reliable guide.
The questions that decide this job, answered up front.
We can clear it, and sometimes that is the right emergency step. But it will be back within the week, because the cause is heat escaping into the roof space and nothing about clearing ice changes that. Steam removal and chipping both risk the covering, and chipping frequently does real damage.
They can keep a channel open and stop water pooling behind a dam, which is a legitimate holding measure on a roof that cannot be improved this year. They do not stop the melting, they cost money to run every winter, and anybody selling them as the solution is selling a symptom.
No. The inspection is free, it covers the roof space as well as the roof, the written quote is free, and neither carries an obligation. The written cause is yours to keep even if you use somebody else. What we will not do is give you a price at the curb without going up.
Most New Jersey roof repairs run $350 to $1,800, with minor work from $150 to $600. A leak is usually $400 to $1,400 and a small isolated one $400 to $900. Flashing is $300 to $900, or $300 to $1,200 around a chimney, vent or skylight. New Jersey runs above the national average on labor, which is why online calculators read low.
That is an ice dam, and it is the opposite of a rain leak. Heat escaping into the roof space melts snow on the upper roof; the meltwater refreezes at the cold eaves and dams; water then backs up behind it and goes in above the line the covering sheds from. It shows up during a thaw. The lasting fix is insulation and ventilation, not shingles.
The roof space walked as well as the roof, before any price. The cause named in writing, not just the work.