Roof Replacement Cost in Delaware (2027 Price Guide)
Adjust the house size or the roof slope in Delaware
Change the size or pitch and every price below reprices. We start at 5/12, a common Delaware slope; at 9/12 and steeper, expect harness and jack work in the bid.
A full asphalt shingle replacement in Delaware comes to roughly $11,700 to $17,840 for a typical 2,270 sq. ft. single-story house. That covers a 5/12 roof of about 2,565 sq. ft. - 25.7 squares - with tear-off of the current shingles, new materials and the crew.
On a per-square basis (a square equals a hundred square feet), Delaware prices this roof at about $556.20. If you want architectural 50-year shingles instead, plan on $13,010 to $19,820; metal opens at about $25,180 with steel shingles.
- Home: 2,270 sq. ft., 1 floor
- Under roof: 2,270 sq. ft.
- Roof surface: 2,565 sq. ft. (25.7 squares), 5/12
- 30-year asphalt: $11,700 to $17,840
- 50-year architectural: $13,010 to $19,820
- Metal: $25,180 to $52,240
- Flat (EPDM), full footprint: $17,290 to $22,450
What a New Roof Costs in Delaware: Shingles, Metal, Membranes
Your material choice moves the total more than any other decision. This table keeps the 2,565 sq. ft. roof fixed and swaps only what goes on top, old layer removal included.
| Material | Installed cost | Estimate | Per square |
|---|---|---|---|
| Asphalt shingles | |||
| Asphalt shingles, 30-year | $11,700 to $17,840 | $14,270 | $556.20 |
| Architectural shingles, 50-year | $13,010 to $19,820 | $15,860 | $618.11 |
| Metal | |||
| Steel shingles | $25,180 to $38,380 | $30,700 | $1,196.82 |
| Aluminum shingles | $27,840 to $42,440 | $33,950 | $1,323.44 |
| Standing seam metal | $33,560 to $51,160 | $40,930 | $1,595.45 |
| Stone-coated steel tiles | $34,270 to $52,240 | $41,800 | $1,629.22 |
| Flat / low-slope membranes (priced on the 2,270 sq. ft. footprint) | |||
| EPDM rubber membrane | $17,290 to $22,450 | $19,870 | $875.11 |
| TPO membrane, 60-mil | $14,880 to $19,320 | $17,100 | $753.17 |
| PVC membrane, 60-mil | $17,990 to $23,370 | $20,680 | $910.75 |
These figures are not separate guesses. They run through our roof replacement calculator, metal roof calculator and flat roof calculator with the South Atlantic regional factor, which lands pitched roofs 6% below the U.S. average.
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 Delaware estimates above.
Why Delaware Roofing Bids Differ
Line items, not markup, explain most bid gaps. Priced on the 25.7-square roof in this guide:
- Tear-off. About $3,420 of the quote pays to strip and dispose of one layer; if the roofer finds two layers, figure another $2,220 or so.
- Design. Simple gables are the cheapest to cover. Figure about $1,410 more for a hip roof, or about $2,390 more when dormers and valleys cut it up.
- Building height. Same roof, two stories up: about $1,020 more, mostly labor and safety staging.
- Openings. Plan near $340 per skylight that gets replaced or added while the roof is open.
- Roof deck. Ask every bidder for a per-sheet plywood or OSB price. It turns the biggest unknown on the job into a known number.
- 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.
- Paperwork. Local permit fees and dumpster rental vary; ask each roofer to list them rather than add them later.
Price Your Exact Scope
Set the material, the layers coming off, the roof shape and the house height. The price updates instantly from our Delaware model.
$14,270quotes usually $11,700 – $17,840
Roof size and pitch stay fixed (2,565 sq. ft., 5/12); only the scope changes. Skylights, gutters and rotten decking are not included.
Put every quote on one sheet with the same rows - removal, underlayment, ice barrier, flashing, ventilation, decking, permit - and the real differences show.
Delaware Climate and Roof Wear
A roof in Delaware lives in Climate Region 3: about 89°F on a typical summer afternoon, about 44°F on a winter afternoon, and about 27°F on a winter night. Below are the stresses that matter most for a Delaware roof, and what to ask for because of them.
Sea breeze. Salt-laden air shortens the life of exposed steel on a roof. Upgraded fasteners and aluminum or coated flashing are worth asking for near the coast.
Thaw damage. Meltwater that refreezes in gutters and seams expands and opens them a little more each time. Keep gutters clear and have every flashing joint redone during the re-roof.
Algae streaks. The dark stains on many roofs here are algae that thrive in humid air. Algae-resistant shingles, made with copper-treated granules, stay clean much longer.
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.
Roof Replacement Cost Near You
Pricing a Metal Roof in Delaware
Metal roofs come in a few families, and they do different jobs. The prices below are for a typical 2,270 sq. ft. single-story house in Delaware.
- Standing seam: $33,560 to $51,160. This is the classic metal roof: smooth vertical panels, fasteners tucked under the seam. It suits simple roof shapes and owners who plan to stay. Over architectural shingles, expect about $25,070 more.
- Steel shingles: $25,180 to $38,380. Aluminum shingles: $27,840 to $42,440. If the neighbors would frown at ribbed panels, this is the answer. From the curb they read as shingles or shake. Aluminum is lighter and never rusts; steel costs less and takes a hailstone better.
- Stone-coated steel: $34,270 to $52,240. 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.
Coastal homes should look at aluminum panels or coastal-warranted steel, with matching corrosion-resistant fasteners. Metal pays off for long-term owners. If a move is likely within a few years, architectural shingles usually give better value. Want a firmer metal number? Try the metal roof calculator with your measurements.
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Scheduling Your Delaware Roof Job
Crews here lose few days to weather: winter afternoons average 44°F, summer afternoons 89°F. Spring and fall are the comfortable months, and booking ahead beats waiting for a leak.
Pricing Low-Slope Roofs in Delaware
Membrane roofing covers what shingles cannot: flat porches, garages, additions and row-house tops. On a 2,270 sq. ft. footprint:
- EPDM rubber: $17,290 to $22,450. A rubber membrane with a long track record. It comes in large rolls, so a small roof may need no seam at all. Choose it where the roof is shaded or out of sight and the winters are hard.
- TPO, 60-mil: $14,880 to $19,320. 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: $17,990 to $23,370. Also white and heat-welded, but tougher against grease, chemicals and standing water. It is the pick for roof decks, low spots that hold puddles, and anything near a kitchen exhaust.
Price order in Delaware: TPO first, PVC last, with EPDM between them. Tear-off of one existing layer and new polyiso board are part of each figure. A small section will price higher per square foot. Make sure a new flat roof drains completely; trapped water and winter freezes are a bad combination. 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.
How Delaware Cities Compare on Roof Prices
Contractors working in Wilmington, Dover and Newark pay more for crews, coverage and permits, so their bids land above the statewide figure; small towns usually come in lower. Same 30-year shingle roof, by city:
Asphalt shingles (30-yr), installed
- Wilmingtonpop. 71,000$11,790 – $17,970
- Doverpop. 39,000$11,690 – $17,820
- Newarkpop. 31,000$11,650 – $17,760
- Middletownpop. 24,000$11,730 – $17,880
We adjust the statewide range by city size and metro status; every linked city page uses the same math.
Ballpark Your Delaware Roof Cost
Move the slider to your square footage and the price range updates from the same cost model, using statewide rates.
$11,700 – $17,840 Asphalt shingles, 30-year, installed
Common Questions About Re-Roofing in Delaware
When does a home policy pay for roofing?
Policies pay for sudden events, not aging. Check whether yours pays replacement cost or depreciated value; on a $11,700 to $17,840 roof, that choice decides who pays most of the bill.
How can I check the size a roofer quoted?
Take the footprint (2,270 sq. ft. here) and adjust for pitch (5/12): about 25.7 squares, or 2,565 sq. ft., counting overhang and waste. Get the square count on every quote.
What permits does a Delaware roofing job need?
Most local building departments want one when the old roof comes off completely, and some send an inspector at the end. The contractor should file it; be cautious if a roofer asks you to.
How many working days does a new roof need?
For roughly 25.7 squares, a full crew usually finishes asphalt in a few days. Metal panels and roofs with many valleys take longer.
Price it yourself: Roof Replacement Calculator · Metal Roof Calculator · Flat Roof Calculator · Gutter Cost Calculator · Attic Insulation Calculator · Roof Heat Cable Calculator
How we price: every figure runs through our roofing calculator math, scaled for South Atlantic costs and refreshed each year for inflation. They are budgeting numbers, not quotes. Real roof size, site access, code rules and season all change bids, so collect three or more written quotes on one scope.
