Wilmington, DE Roofing Prices: Shingle, Metal and Flat Roofs (2027)
Different home? Enter its size and pitch in Wilmington, DE
A roof's pitch is its rise in inches over twelve inches of run. Steeper roofs like 9/12 need roof jacks and harness work, so they cost more. We assume 5/12 for Delaware; pick yours above.
Budget $11,790 to $17,970 to strip and re-shingle a typical 2,270 sq. ft. single-story house in Wilmington, DE with standard asphalt. The roof itself measures about 2,565 sq. ft. (25.7 squares) at a 5/12 slope, and the price includes labor, materials and removal of the existing layer.
On a per-square basis (a square equals a hundred square feet), Wilmington, DE prices this roof at about $560.32. Upgrades change the picture: $13,100 to $19,970 for 50-year architectural shingles, or a starting point near $25,370 for steel shingles.
Expect Wilmington bids to sit roughly $110 higher than the Delaware average of $11,710 to $17,840. The Wilmington figures cover its 25 ZIP codes in New Castle County.
Wilmington, DE Roof Replacement: Price per Material
The roof stays the same size in every row below; only the covering changes. Each price includes tear-off of one layer, and the range shows how far honest bids usually spread.
| Material | Installed cost | Estimate | Per square |
|---|---|---|---|
| Asphalt shingles | |||
| Asphalt shingles, 30-year | $11,790 to $17,970 | $14,380 | $560.32 |
| Architectural shingles, 50-year | $13,100 to $19,970 | $15,980 | $622.68 |
| Metal | |||
| Steel shingles | $25,370 to $38,660 | $30,930 | $1,205.68 |
| Aluminum shingles | $28,050 to $42,750 | $34,200 | $1,333.24 |
| Standing seam metal | $33,810 to $51,540 | $41,230 | $1,607.26 |
| Stone-coated steel tiles | $34,530 to $52,630 | $42,110 | $1,641.28 |
| Flat / low-slope membranes (priced on the 2,270 sq. ft. footprint) | |||
| EPDM rubber membrane | $17,420 to $22,620 | $20,020 | $881.59 |
| TPO membrane, 60-mil | $14,990 to $19,470 | $17,230 | $758.75 |
| PVC membrane, 60-mil | $18,120 to $23,540 | $20,830 | $917.49 |
Where the numbers come from: the roof replacement calculator for shingles, the metal roof calculator for metal and the flat roof calculator for flat membranes, each set to South Atlantic pricing - 6% below the U.S. average for shingles and metal.
Price per Year of Roof
The real cost of a roof is price divided by the years it lasts. Hover a bar: metal costs more up front and less per year.
Service lives follow the climate-bell model above (asphalt peaks in moderate regions; metal assumes correct installation); prices are the Wilmington, DE estimates above.
Pricing Variables in a Wilmington, DE Re-Roof
Line items, not markup, explain most bid gaps. Priced on the 25.7-square roof in this guide:
- Layers to remove. One layer costs roughly $3,450 to take off. Older homes sometimes hide a second layer, which adds near $2,230.
- Roof shape. When every side of the roof slopes down to a gutter (a hip design), add close to $1,420 over a two-sided gable. Plenty of dormers and valleys raise the add-on to about $2,400.
- Stories. Put this roof on a two-story house and the bid rises by about $1,020 for the extra climbing, staging and hauling.
- Skylight work. Budget about $340 for every skylight replaced or added during the re-roof.
- Bad wood. Damaged decking is the most common mid-job extra. Agree on a price per sheet before work starts.
- Flashing and ventilation. Reusing old flashing saves a little now and causes leaks later. Gutters are a separate trade line; the gutter cost calculator covers them.
- Fees. Permit cost and debris hauling change from town to town. The quote should name both.
Check a Bid Against Your Roof
Change any option to see what that scope costs in Wilmington, DE. Then compare each bid against it.
$14,380quotes usually $11,790 – $17,970
Based on this page's 2,565 sq. ft. roof at 5/12 and Wilmington, DE pricing. Not included: skylights, gutters, replacement decking.
A fair comparison holds scope constant - same layers off, same underlayment, same flashing and vent work, same decking terms. Then price decides.
Roof Stressors in Delaware
Delaware's winters average highs near 44°F and lows near 27°F; summer highs average about 89°F. On our climate map below, that puts it in Region 3. The weather above points to a few specific risks for Delaware roofs.
Ocean air. Close to salt water, metal trim and fasteners rust first. Specify corrosion-resistant hardware, and pick aluminum or a metal panel warranted for coastal sites.
Freeze and thaw. Winter nights near 27°F followed by sunny days work water into joints and flashing, one cycle at a time. Tight flashing and clean gutters do more here than a premium shingle.
Humidity. Damp, warm air grows algae and mildew on shady roof planes. Choose algae-resistant shingles and keep branches trimmed back so the roof dries after rain.
Where Shingles Live Longest: the Climate Bell
Asphalt life peaks in the moderate middle (Region 3) and falls toward BOTH ends of the map above - cold regions destroy shingles with ice dams, hot ones bake them. Note the middle columns: shingles marketed as “lifetime” are good for about 25 real-world years at best - Delaware is Region 3. Hover any column.
low pitch holds snow and ice - it costs the most years in cold regions
Planning figures from our climate model, for ventilation-correct installs - a baked, unvented attic can take years off any column. Pitch adjusts the asphalt columns only; metal sheds snow at any sane pitch.
Check Roof Prices Where You Live
Pricing a Metal Roof in Wilmington, DE
Most metal bids in Wilmington, DE fall into one of the types below. Each line is priced for a typical 2,270 sq. ft. single-story house, the same way our metal roof calculator does it.
- Standing seam: $33,810 to $51,540. Long panels run from ridge to eave and lock together at raised seams, with the clips hidden underneath. No screws go through the face, so there are far fewer places for a leak to start. On this roof it runs about $25,260 more than architectural shingles.
- Steel shingles: $25,370 to $38,660. Aluminum shingles: $28,050 to $42,750. The look of a regular roof with the life of metal. These pieces work on steep or complicated roofs. Steel resists dents; aluminum resists corrosion.
- Stone-coated steel: $34,530 to $52,630. Steel panels covered in crushed stone and shaped like clay tile or wood shake. The texture hides hail marks and softens rain noise.
- Copper: custom quote only. We do not price copper, because every copper roof is custom work. Expect it to cost well above standing seam. It is soft, formed by hand, and can last a century, turning brown and then green. Most homes use it on bay windows, porch roofs and other accents.
Snow and ice come first in Delaware. A metal roof lets snow slide clear of the eaves and adds years to the roof. Pick a light, cool-rated color and it helps in July as well.
Near salt water, choose aluminum or steel with a coating rated for coastal sites; cut edges and scratches on plain steel rust first. Metal pays off for long-term owners. If a move is likely within a few years, architectural shingles usually give better value. Price a specific panel, gauge and finish with the metal roof calculator.
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When to Re-Roof in Wilmington, DE
Roofing goes on most of the year in Delaware. Mild shoulder seasons are ideal; after a big storm, crews book up fast.
What a Flat Roof Costs in Wilmington, DE
Low-slope sections need a sealed membrane instead of shingles. Priced across the whole 2,270 sq. ft. footprint, a membrane roof in Wilmington, DE costs:
- EPDM rubber: $17,420 to $22,620. This is the black rubber sheet on many older flat roofs. Big sheets mean few seams. It stays soft in deep cold and any roofer can patch it, which makes it a good fit for a garage or a back porch.
- TPO, 60-mil: $14,990 to $19,470. White plastic sheet, welded at the seams. It stays light for years and keeps the rooms below cooler. Quality varies by maker more than with the other two, so ask which product the bid names.
- PVC, 60-mil: $18,120 to $23,540. The premium white membrane: welded seams, a strong fire rating, and good resistance to puddles and chemicals. It fits roofs that carry foot traffic or hold water after a storm.
On this footprint TPO comes in lowest, EPDM sits in the middle and PVC costs the most. Both insulation board and old-layer removal are in the numbers. Per square foot, small flat roofs cost noticeably more than large ones. Ponding water is the main enemy of flat roofs through a Delaware winter. Ask for tapered insulation at low spots and clear drains. Price your exact membrane, insulation thickness and drains with the flat roof calculator.
Freeze and thaw are the main threat here, and summer heat comes second. Welded TPO or PVC handles both: tight seams for the cold and a white face for the heat.
Other Delaware Markets
The same 30-year shingle roof in other large Delaware cities, with distance from Wilmington:
- Newark, DE: $11,660 to $17,770, about 10 miles southwest
- Middletown, DE: $11,730 to $17,880, about 20 miles south
- Dover, DE: $11,690 to $17,820, about 40 miles south
The same crews work Rockland, Montchanin, Winterthur, New Castle and Hockessin, so these prices apply there too. Statewide prices and the full city list: Delaware roofing cost guide.
Answers for Wilmington, DE Homeowners
Can I file an insurance claim for a new roof?
Policies pay for sudden events, not aging. Check whether yours pays replacement cost or depreciated value; on a $11,790 to $17,970 roof, that choice decides who pays most of the bill.
How do roofers measure a roof in squares?
Start with the area under the roof, including garages and porches, then allow for slope and waste. A 2,270 sq. ft. footprint at 5/12 becomes roughly 25.7 squares (2,565 sq. ft.). Compare bids on the same count.
What permits does a Delaware roofing job need?
Often yes. Most local building departments want a permit for a full replacement. The contractor normally handles it - ask to see it before work starts.
What is the usual timeline for a re-roof?
Expect a short job for 25.7 squares of shingles - often a day or two, sometimes more. The crew should tarp or dry-in anything they open before leaving.
Related calculators: Roof Replacement Calculator · Metal Roof Calculator · Flat Roof Calculator · Gutter Cost Calculator · Attic Insulation Calculator · Roof Heat Cable Calculator
Where prices come from: our roofing calculators, a South Atlantic adjustment and yearly inflation. Real bids depend on your roof, so ask several contractors to quote the same work.
Quick Answers
Answers use Delaware averages; energy prices updated October 2026.
What time of year is best for a new roof in Delaware?
Mostly whenever suits you. With winters near 44°F by day and summers near 89°F, Delaware weather seldom stops roofers; book early, before the post-storm rush.
Does a new roof in Delaware need an ice barrier membrane?
Usually worth it. Winter nights in Delaware average about 27°F, so freeze-thaw is common and ice dams can form in colder spots; valleys and chimney flashing are the must-have areas.
Does metal roofing make sense in Delaware?
It depends on how long you stay. Metal costs more now and lasts much longer; Delaware weather (winter lows near 27°F, summer highs near 89°F) favors neither choice, so compare cost per year of service.
Will a lighter roof lower cooling costs in Delaware?
Yes. Summers near 89°F and electricity at 22.5¢ per kWh in Delaware make a reflective roof pay off through lower attic heat and shorter AC run times.
Can new shingles go on top of the old roof?
Sometimes, if only one layer is on now and local code allows a second. A full tear-off costs more but exposes the deck, so rotted boards get replaced rather than buried.
Run your own numbers: Roof replacement calculator or Metal roof cost calculator.
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