Metal and asphalt roofs
Roof Replacement for New Jersey Homes
Roof replacement in NJ comes down to two decisions: what goes on the house, and whether the old roof has to come off first. We install metal roofing systems and asphalt shingles. This page compares them, explains the state rules and gives national price ranges to plan with.
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- Lifetime workmanship warranty for as long as you own the home
- Free written estimates
Your options
What are your roof replacement options in New Jersey?
Most houses here end up choosing between a metal system and asphalt shingles. Metal asks for a bigger check today and lasts far longer by published estimates. Asphalt is cheaper now and comes due again sooner.
| Roof | Look from the street | Estimated life | Installed cost (national, 2026) |
|---|---|---|---|
| Standing seam metal | Long vertical panels with raised seams | 40 to 80 years for metal roofing (InterNACHI) | $9 to $16 per sq ft (HomeGuide) |
| Metal shingles and shakes | Shingle, shake or slate profiles | 40 to 80 years for metal roofing (InterNACHI) | $6 to $14 per sq ft (HomeGuide) |
| Architectural asphalt | Layered, dimensional shingles | About 30 years (InterNACHI) | $3 to $6 per sq ft for asphalt (HomeGuide) |
| 3-tab asphalt | Flat, single-layer shingles | About 20 years (InterNACHI) | Same national asphalt range |
Life estimates are from the InterNACHI life-expectancy chart. Cost figures are from two HomeGuide guides, one on metal roofs and one on roof replacement.
Two more metal systems fill narrower roles: metal tile for tile-style houses and corrugated panels for garages and sheds. Our metal roofing hub covers each one.
Metal or asphalt
Should your new roof be metal or asphalt?
Pick metal if you plan to stay for decades and want one roof to outlast more than one shingle roof. Pick asphalt if the budget is fixed now or you might sell in the next few years.
When metal makes sense
- You expect to own the house past the life of one shingle roof.
- Snow sits on your roof for weeks. A slick metal surface lets it slide, and snow guards keep it off doorways.
- Solar panels are planned. Standing seam lets mounts clamp to the ribs; see our solar-ready roofs.
- You want a lighter roof. By one metal maker’s figures, 100 square feet of steel roofing weighs 80 to 125 pounds, while the same area of asphalt shingles weighs 275 to 425.
When asphalt makes sense
- The old roof has to go now and the budget is set.
- You plan to sell before a shingle roof would wear out.
- An HOA, or a roofline shared with attached neighbors, calls for shingles.
Our metal roof vs shingles comparison lines the two up, including a 30-year cost view. If you already lean toward metal, the metal roof cost guide shows what moves the price.
Warning signs
What are the signs you need a new roof?
Age is the first clue: a roof near the end of its expected service life is a candidate even before it leaks. Wear spread across whole slopes, rather than one spot, is the second.
- Age. InterNACHI’s chart gives 3-tab shingles about 20 years and architectural shingles about 30.
- Shingles curling, cracking or losing their granules across entire slopes, not just one corner.
- Leaks in more than one place, or the same leak returning after a repair.
- Soft or springy spots underfoot, or a roofline that sags between rafters.
- Water stains on ceilings, or daylight between roof boards seen from the attic.
- Ice dams most winters. The roof may be fine while the attic leaks heat; see our ice dam guide.
- Two layers already on the house, which means the next roof starts with a full tear-off.
One sign alone rarely settles it. At the estimate visit we count the layers, look at the deck from the attic and check the flashing, then tell you plainly what we found.
Repair or replace
Should you repair or replace your roof?
Repair when the damage is in one spot and the rest of the roof has years left. Replace when the roof is close to worn out, leaks in several places, or the repair bills start to rival a new roof.
National figures show the gap. HomeGuide (February 2026) puts minor repairs at $150 to $1,000 and major repairs at $3,000 to $6,000 or more. Its replacement guide puts most asphalt roofs at $5,700 to $16,000.
Sales tax can tip the math as well. New Jersey taxes roof repairs, but a whole new roof is an exempt capital improvement once the owner hands the contractor Form ST-8 (Division of Taxation bulletin S&U-3).
Our roof repair page covers the usual leak sources and what a repair visit involves.
Permits
Do you need a permit to replace a roof in New Jersey?
Usually not for a detached one- or two-family home. The Uniform Construction Code treats replacing the roof covering on those houses as ordinary maintenance, with no permit application or notice to the construction official (N.J.A.C. 5:23-2.7).
- Attached homes, such as townhouses, fall outside that exemption, so they generally need a construction permit.
- Work that affects structural or fire safety never counts as ordinary maintenance.
- Historic districts are handled separately. A local historic review can still apply when no construction permit is needed, as a New Jersey Historic Trust guide describes.
- If you have an HOA, its color and material rules apply too; have them handy at the estimate.
If your house does need a permit, state rules bar the work from starting before it is issued. Our roof permit guide goes deeper.
Tear-off rule
When does New Jersey require a full tear-off?
When two or more layers are already on the roof, when it is wood shake, slate or tile, or when it is too wet or worn to serve as a base for a new covering.
The requirement sits in N.J.A.C. 5:23-6.4(e)7, part of the state’s Rehabilitation Subcode (NJ DCA rule text). Its tile list names clay, cement and asbestos-cement. In practice, a new roof can cover one existing layer at most.
The national model code exempts certain metal systems, and New Jersey’s version leaves that exception out. So metal can only cover a single sound asphalt layer over a solid deck. Our page on a metal roof over shingles lays out the checks and trade-offs.
Removal adds to the bill. HomeGuide lists tearing off an old roof at $100 to $300 per square, a square being 100 square feet of roof.
Below the surface
What goes under a new roof?
Underlayment, an eave membrane, flashing and attic airflow decide how the roof copes with ice and wind-driven rain. Shingle wind ratings are explained on our asphalt shingle roofing page.
Eave membrane
New Jersey code requires an ice barrier only where the January average is 25 degrees F or colder; DCA Bulletin 07-3 says that means Sussex County. We install a self-adhered eave membrane on our roofs in every county as standard practice.
Attic air and ice dams
Most ice dams trace back to warm air escaping into the attic. The DOE’s Building America Solution Center lists three defenses: air sealing, insulation, and ventilation with intake at the soffits and exhaust at the ridge. Our soffit and fascia work restores blocked intake vents.
How it works
From first call to finished roof in four steps
1
Call, text or send the form
Tell us what you need. Photos of the roof, gutters or siding help us come prepared.
2
Free visit and measurement
We measure the house, check the decking, flashing and drainage, and talk through systems and colors.
3
Written price and contract
You get the scope and the total price in writing. New Jersey law gives you three business days to cancel after you sign.
4
Install and walk-through
We install, clean up, walk the finished work with you and hand over the warranty paperwork.
How it works
How does a roof replacement work, from estimate to clean-up?
Here is what each stage means for a roof, from the first visit to the walk-through.
- Estimate visit: we measure every slope, count the layers and look at the deck, flashing and vents.
- Written contract: for any job over $500, New Jersey wants a contract on paper, signed by both sides, that lists the work, main materials, total price, start and finish dates and any warranty.
- Cancellation window: you can back out for any reason before midnight of the third business day after you get your copy.
- Tear-off and deck check: decking found rotted after tear-off is shown to you and repaired under a signed change order.
- Dry-in: new drip edge, the eave membrane and underlayment, laid before any shingles or panels.
- New roof: panels or shingles, then flashing, vents and ridge.
- Clean-up and walk-through: debris hauled away, the yard swept for nails, and the job walked with you.
How many days it takes depends on size, pitch, layers and weather, and the dates are written into your contract. Our process page covers payments and paperwork, and the state’s contract rules are in our guide to home improvement contract rights.
Cost
How much does a roof replacement cost in New Jersey?
National guides put asphalt at $3 to $6 per square foot installed and standing seam metal at about two to three times that. We have no verified New Jersey average, so treat these as planning numbers.
| Roof | National installed range | Source |
|---|---|---|
| Asphalt shingles | $3 to $6 per sq ft; most jobs $5,700 to $16,000 | HomeGuide, Nov. 2025 |
| Standing seam metal | $9-$16 per sq ft (around $13,500-$40,000 for an average-size house) | HomeGuide, Nov. 2025 |
| Metal shingles | $6 to $14 per sq ft | HomeGuide, Nov. 2025 |
What moves the number: roof size and pitch, layers to remove, valleys, chimneys and skylights, deck repairs, and the material, gauge and finish you choose.
Each roof is priced from our own measurements, and the total goes in the written estimate.
Federal tax credits are off the table for 2026 roofs. The IRS says the 25C credit is not allowed for property placed in service after 2025, and roofs had already stopped qualifying before that.
Warranty
What warranty comes with a new roof?
Two kinds of coverage. Our written workmanship warranty covers how the roof was put on, and the manufacturer covers the shingles or metal and the finish.
Our workmanship warranty is a lifetime warranty: it covers our installation work for as long as you, the homeowner who signs the contract, own the home. It does not transfer to a later owner. Materials and paint finishes carry their manufacturers' own warranties, and the full written warranty comes with every estimate so you can read it before you sign.
Read the maker’s terms closely, because a long warranty term is not the same thing as an expected life. Our warranty page sets out what each one covers and how claims work.
Get a free estimate
Tell us about the house and the work. We visit, measure and give you a written price before any work starts.
Prefer to talk now? Call (732) 231-5327.
Questions
Roof replacement questions from New Jersey homeowners
How long does a roof replacement take?
It depends on the roof’s size and pitch, how many layers come off, how much flashing there is and the weather. New Jersey’s home improvement rules require the start and finish dates in your written contract.
Is a permit needed for a new roof on a single-family home in New Jersey?
Not for a detached house with one or two units, where swapping the roof covering is ordinary maintenance. Attached homes and multifamily buildings generally need a permit, and historic districts can require a separate approval.
Can a new roof go over my old one?
Over one sound layer only. New Jersey orders a tear-off if there are two layers or more, if the roofing is wood shake, slate or tile, or if the old roof is too far gone to build on. Metal roofs follow the same rule.
Is metal or asphalt better for a New Jersey home?
Metal suits long ownership, heavy snow and solar plans; asphalt suits a tighter budget or a shorter stay. InterNACHI’s chart gives metal roofing 40 to 80 years and architectural shingles about 30.
What does a new roof cost?
HomeGuide’s national ranges run $3 to $6 per square foot installed for asphalt and $9 to $16 for standing seam. Your exact price comes from a free measurement.
Is a new roof taxable in New Jersey?
Not when it is a full replacement and you hand the contractor a completed Form ST-8; the state treats that as an exempt capital improvement. Repairs, by contrast, are taxed.
What if I change my mind after signing a roofing contract?
New Jersey gives you until midnight of the third business day after you get your copy to cancel for any reason. Put it in writing and send it by certified or registered mail, or hand it over in person.
Which areas do you cover?
Middlesex, Somerset, Monmouth, Mercer, Morris, Hunterdon, Essex, Passaic, Ocean and Sussex counties. See our service areas, or ask if you are just outside them.
Free estimate
Find out what your roof really needs
We measure the roof, count the layers and check the deck, then give you a written price for the options that fit the house.
Prefer the phone? Call (732) 231-5327. The ten counties we serve are listed on our service areas page.