Slate Roof Replacement in East Orange from $15. Before you replace it: slate outlives its own nails, and that is usually what has actually failed. Free inspection and a written quote.
Replacing an existing slate roof is $20 to $35 per square foot, so $40,000 to $70,000 on an average house. Before anybody accepts that, establish what has actually failed: on pre-war Essex County roofs the slate is frequently sound while the nails have corroded and the valley linings have rusted through. Those are repairs.
Replacing an existing slate roof runs $20 to $35 per square foot -- $40,000 to $70,000 on an average house -- because the old slate has to come off and be disposed of before the new roof starts. A new slate roof is $15 to $30 per square foot. Those numbers are why this page leads with an argument rather than a sales pitch.



Replacing an existing slate roof runs $20 to $35 per square foot -- $40,000 to $70,000 on an average house -- because the old slate has to come off and be disposed of first. A new slate roof is $15 to $30. Those numbers are exactly why this page argues against the job before it prices it. Locally the unit count moves a quote before the roof does. One or two units and detached means no permit and no waiting; three means permit, inspection and tenants. After that it is access, because a frontage that has to carry material up and waste down is labor a suburban quote does not contain.
Slate outlives almost everything fixed to it. On a pre-war roof the usual failures are corroded nails, which let slates slip, and rusted valley linings and flashings. All three are repairs, at a small fraction of a replacement.
A steep or cut-up roof, scaffold over occupied units, a slate size or color no longer quarried, and a deck that has to be renewed underneath. Slate work also cannot be rushed without breaking material, so the honest schedule is weeks.
Widespread delamination, slate soft enough to break in the hand, or a deck that has gone. We will say when that is what we found and show you the elevation it is true of, rather than asserting it.
Unit count decides more here than the covering does. At three dwelling units a roof replacement is permitted construction rather than ordinary maintenance, and the building is also a registered multiple dwelling on a five-year inspection cycle. Two identical houses on one street can sit either side of that line.
East Orange has one of the highest shares of two- and three-family housing in Essex County, which is why the three-unit threshold matters more here than almost anywhere else in the state.
Slate outlives almost everything fixed to it. On a pre-war Essex County roof the slate is frequently sound while the nails have corroded, which lets individual slates slip, and the flashings and valley linings have rusted through. Those are repairs. Salvaging sound slate and re-hanging it is a fraction of a replacement.
One is about your building and one is about your covering, and most quotes in this city establish neither.
At one or two and detached, replacing a covering is ordinary maintenance under N.J.A.C. 5:23-2.7: no permit, no inspection. At three it is permitted construction work, and the building is also a registered multiple dwelling under N.J.S.A. 55:13A-1 et seq. on a five-year inspection cycle. Nothing about the roof explains that.
On asphalt, if the covering away from the leak still lies flat, holds its granules and is not brittle, the roof has life in it and a repair is the right job. A failed flashing or a split upstand is hundreds of dollars and is routinely produced as proof that the whole roof is finished.
Two coverings is the practical ceiling. A roof already at two is a tear-off whatever anybody quotes, and it takes two minutes to check at the rake edge. It is the fastest way to tell whether the quotes in front of you describe the same job.
Before the covering, the count.
This is the building this city is made of, and the one roofing advice ignores.
Most low slope in this city sits on three-family houses and rear additions, at $5 to $14 per square foot by system.
Architectural at $5.50 to $8.00 per square foot against three-tab at $4.50 to $6.50 is the difference between two quotes that otherwise look identical.
Fixed costs do not shrink, and that is the part nobody volunteers.
The largest houses, and where slate survives.
Genuinely mixed eras. A neighbor proves nothing.
Duplexes divided into three, and the traces that leaves.
Tight frontages, tenants, and nowhere to park a dumpster.
Flat roofs behind parapets. Access comes first.
Same buildings, a different construction office.
Three-plus units is the default, not the exception.
The questions that come up, before you have to ask.
Much cheaper up front -- $4.50 to $8.00 a square foot against $20 to $35 to replace slate -- and frequently the wrong decision, because a repairable slate roof has decades left. It is also irreversible on a period house. We will price both honestly and say which we would do.
Often, where the size and color are still quarried. Where they are not, the best match available is sound slate salvaged from a low-visibility elevation of your own roof -- which is why slate coming off is stacked carefully rather than treated as waste.
An architectural asphalt roof in New Jersey runs $9,500 to $26,000, and on a typical 2,000 square foot house most people pay $12,000 to $18,000 installed. Per square foot that is $5.50 to $8.00 for architectural and $4.50 to $6.50 for three-tab. Slate is a different market entirely: $20 to $35 per square foot to replace an existing one.
Yes. The ordinary-maintenance exemption in N.J.A.C. 5:23-2.7 reaches one- and two-family dwellings, so at three units a covering replacement becomes permitted construction work with an inspection at the end. There is a second consequence as well: at three units the building is a multiple dwelling under N.J.S.A. 55:13A-1 et seq.
Usually not. Slate outlives almost everything fixed to it, and slipped slates on a pre-war roof normally mean the nails have corroded rather than that the slate has failed. Leaks at a valley usually mean a rusted lining. Both are repairs, and replacing an existing slate roof at $20 to $35 per square foot is a very expensive way to fix a nail problem.
Unit count established before anything is priced. New Jersey figures, not a national calculator.