Commercial Roof Replacement in Dundee from $4. $4 to $18 a square foot, and the plant on the roof is half the job. Free inspection and a written quote.
This is the genuine commercial roofing in the city: mill-era buildings with roofs measured in tens of thousands of square feet, plant on them and production underneath that cannot stop. The sequence matters more than the price per square foot, and it is worth agreeing bay by bay before anything starts.
Commercial roofing in New Jersey runs $4 to $18 per square foot, and that range is wide because the membrane is frequently the smaller half of the cost. This city's mill-era and light industrial stock carries large-area roofs with plant, curbs, ducting and rooftop units on them, and every one of those is a detail to be re-flashed properly.



Commercial roofing in New Jersey runs $4 to $18 per square foot, and the range is that wide because on a real commercial roof the membrane is frequently the smaller half of the cost. Two quotes differing by a factor of two are usually not describing the same roof. Priced per square foot rather than as a building, because the roofs here are mill-scale. What moves it is the plant on top and whether production below can continue -- and exposure by the water, which puts perimeter fixing on the list.
Curbs, ducting, extraction and rooftop units are each a detail to be re-flashed properly, and whether a unit has to be lifted or worked around changes both price and program. A quote silent on them has priced the field only.
Working in bays, protecting from underneath as well as above, and fitting the hours of the business below are all real labor. Priced openly they are manageable; left out they arrive as a variation.
The insulation, the attachment method, and what happens at every penetration. Those three account for most of the difference between a $6 roof and a $14 one.
Dundee is where the large-area low-slope roofs are. A mill-era building carries a roof measured in tens of thousands of square feet with plant, curbs and ducting on it, and on those the membrane is the smaller half of the cost. Exposure by the water is the other factor: perimeter fixing matters more here than inland.
Two things move a Passaic price more than the covering does, and both are consequences of density rather than of roofing.
On a mixed-use frontage it usually is, and that changes everything: whose keys, whose hours, and what has to be protected underneath. This is the single most common reason a start date slips in this city, and it is entirely avoidable by asking first.
An attached building has no eaves. Water leaves through an internal outlet or a scupper cut through a parapet wall, so the failures are at the coping, the upstand and the outlet. A roof quote covering the field and silent on those has priced the easy part.
A blocked outlet ponds the roof instead of overflowing off an edge. Water standing in a lap through a cold week expands and lifts it, then thaws and runs in through the gap it just made. Outlet capacity is the cheapest genuine upgrade on a roof here.
Scale changes the arithmetic by the river.
Large-area low slope is the whole job by the river, and at that scale the insulation specification and the attachment method matter as much as the membrane.
At mill scale black EPDM starts to give ground.
Very little shingle by the river -- the workers' housing that has it is the exception among industrial buildings.
Converted mill buildings are the interesting case by the river: residential units under an industrial-scale roof, frequently with original structure and later plant on top.
No side yard, no driveway, parapets on every side.
Semi-detached and pitched. Eaves are back in play.
The tightest frontages, and party-wall junctions.
The shop below decides the hours and the route.
Bus routes and loading bays. Arrange the street first.
A more open grid, so a dumpster needs no negotiation.
Detached houses, side access, sometimes no permit.
The questions that decide this job, answered up front.
Almost always. It means working in bays, protecting the space below as well as the roof above, and agreeing hours in advance. What it does not mean is pretending the constraint is free -- it is labor, and it goes in the quote.
Check three lines: the insulation specification, the attachment method, and what happens at every curb and penetration. Those account for most of the gap between a $6 roof and a $14 one, and a quote that omits them is not describing the same job as one that includes them.
At an edge, almost certainly. An attached building has no eaves, so water leaves through an internal outlet or a scupper through the parapet -- and the failures are at the coping on top of the wall, at the upstand where the membrane turns up it, or at the outlet itself. The field is usually the last thing wrong with a roof here.
Rubber means EPDM, at $5 to $9 per square foot: bonded with adhesive and tape, black, and the least expensive single-ply. TPO is $6 to $12, welded at the seams and reflective, which matters on a large roof over occupied space. On a small rear addition EPDM is usually the right answer rather than the cheap one.
Two to five days on a house, four to seven on an apartment building, and one to three weeks on real commercial work. The roofing is rarely the long part: the street arrangement, the route onto the roof and any tenant notice periods are what set the start date in this city.
The route to the roof established before anything is priced. New Jersey figures, with the access stated rather than buried.