New Roof Cost in Dover, DE: 2027 Local Prices
Reprice this page for your own roof in Dover, DE
Not sure of the pitch? Most ranch homes sit low; a roof you cannot walk on, such as 9/12 and up, adds safety gear and labor. This page starts Delaware at 5/12.
In Dover, DE, a typical 2,270 sq. ft. single-story house needs about $11,690 to $17,820 for a new asphalt shingle roof, old shingles off and hauled away. We get there from roughly 25.7 squares of roof (2,565 sq. ft.) pitched at 5/12; one layer comes off, and labor plus materials are in the number.
Per square - the hundred-square-foot unit every roofing bid uses - this job lands at $555.69 installed. If you want architectural 50-year shingles instead, plan on $12,990 to $19,810; metal opens at about $25,160 with steel shingles.
That is about $20 below the statewide figure of $11,710 to $17,840; smaller markets usually price under the big metros. Our prices apply across the 6 ZIP codes that carry the Dover name, in Kent County.
What a New Roof Costs in Dover, DE: Shingles, Metal, Membranes
Every row is the same Dover, DE roof with a different surface. The low and high ends mark the usual spread between contractors; the middle column is the number to budget.
| Material | Installed cost | Estimate | Per square |
|---|---|---|---|
| Asphalt shingles | |||
| Asphalt shingles, 30-year | $11,690 to $17,820 | $14,260 | $555.69 |
| Architectural shingles, 50-year | $12,990 to $19,810 | $15,850 | $617.54 |
| Metal | |||
| Steel shingles | $25,160 to $38,340 | $30,680 | $1,195.72 |
| Aluminum shingles | $27,820 to $42,400 | $33,920 | $1,322.22 |
| Standing seam metal | $33,530 to $51,110 | $40,890 | $1,593.98 |
| Stone-coated steel tiles | $34,240 to $52,200 | $41,760 | $1,627.71 |
| Flat / low-slope membranes (priced on the 2,270 sq. ft. footprint) | |||
| EPDM rubber membrane | $17,270 to $22,430 | $19,850 | $874.30 |
| TPO membrane, 60-mil | $14,870 to $19,310 | $17,090 | $752.48 |
| PVC membrane, 60-mil | $17,970 to $23,350 | $20,660 | $909.91 |
Plug the same measurements into the roof replacement calculator, metal roof calculator or flat roof calculator and you will get these exact figures; with the South Atlantic factor, pitched roofs here price 7% 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 Dover, DE estimates above.
What Pushes a Dover, DE Roof Quote Up or Down
Most of the spread between roofers comes from a handful of line items. For a 25.7-square roof at Dover, DE prices:
- Layers to remove. One layer costs roughly $3,420 to take off. Older homes sometimes hide a second layer, which adds near $2,220.
- Design. Simple gables are the cheapest to cover. Figure about $1,410 more for a hip roof, or about $2,380 more when dormers and valleys cut it up.
- Second story. Roofers charge about $1,010 more for this roof on a two-story home - longer ladders, more trips, more setup.
- Skylight work. Budget about $340 for every skylight replaced or added during the re-roof.
- 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.
- Accessories. Ridge vents, pipe flashing and drip edge belong in the scope. If the gutters are due too, run them through the gutter cost calculator.
- Fees. Permit cost and debris hauling change from town to town. The quote should name both.
Match the Quote to Your Roof
Choose what your roof really needs. Every combination is priced in advance by the same model as this page.
$14,260quotes usually $11,690 – $17,820
Based on this page's 2,565 sq. ft. roof at 5/12 and Dover, DE pricing. Not included: skylights, gutters, replacement decking.
Ask each bidder to fill in the same list: tear-off layers, underlayment, ice barrier, flashing, vents, decking rate, permit. Gaps in that list explain most low bids.
How Delaware Weather Ages a Roof
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. Below are the stresses that matter most for a Delaware roof, and what to ask for because of them.
Salt air. Near the ocean, salt corrodes steel fasteners, flashing and cut metal edges. Ask for corrosion-resistant nails and flashing, and choose aluminum or coastal-rated metal panels.
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.
Moist air. Humid summers feed algae on the roof and condensation in the attic. Algae-resistant shingles handle the first problem; balanced ventilation handles the second.
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
Is Metal Worth It in Dover, DE?
A metal roof on a typical 2,270 sq. ft. single-story house in Dover, DE starts at $25,160. The type you pick matters more than the brand, so here is how the main options differ.
- Standing seam: $33,530 to $51,110. The panels interlock at upright seams, and the clips let the metal grow and shrink with the weather. Budget about $25,050 over architectural shingles for this roof.
- Steel shingles: $25,160 to $38,340. Aluminum shingles: $27,820 to $42,400. Small metal panels with a shingle or tile profile. They go on much like shingles, so hips and dormers are easier than with long panels. Pick aluminum near the ocean and steel inland.
- Stone-coated steel: $34,240 to $52,200. Steel tiles with a coat of stone granules. They are quiet in the rain, hard to dent, and look like tile or shake from the street.
- Copper: custom quote only. A copper roof is hand work by a sheet-metal specialist, and it is priced far above standing seam. It never needs paint and weathers to a green patina. Few homes cover the whole roof with it; dormers and entry roofs are the usual places.
Ice dams are the bigger risk, and metal stops most of them by shedding snow before it can refreeze. A reflective finish then helps through the hot weeks; copper weathers dark and does not.
Coastal homes should look at aluminum panels or coastal-warranted steel, with matching corrosion-resistant fasteners. If you plan to stay a long time, metal can avoid a future re-roof entirely. Short-term owners rarely recover the extra cost. For a particular panel or coating, run the metal roof calculator.
Scheduling Your Dover, DE Roof Job
There is no long off-season here. Spring and fall bring the easiest working weather, and scheduling early beats storm-season backlogs.
Dover, DE Flat Roof Replacement Cost
Porches, additions, garages and some whole houses have roofs too flat for shingles; they get a membrane. Priced on the full 2,270 sq. ft. footprint in Dover, DE:
- EPDM rubber: $17,270 to $22,430. Think of a heavy inner tube spread over the deck. The seams are glued, not welded, and over time they are its weak spot. It earns its place on small, simple roofs and in cold places.
- TPO, 60-mil: $14,870 to $19,310. A white single-ply sheet whose seams are welded with hot air into one piece. It reflects the sun and now covers most new flat roofs on homes and shops.
- PVC, 60-mil: $17,970 to $23,350. A flexible white sheet with welded seams that has kept flat roofs dry for decades. It handles ponding water and grease better than the other two.
Price order in Dover, DE: TPO first, PVC last, with EPDM between them. Each figure covers new polyiso board under the membrane and stripping the existing layer. Small flat areas cost more per square foot, since edges, flashing and setup barely shrink. Make sure a new flat roof drains completely; trapped water and winter freezes are a bad combination. Need another membrane or insulation level? The flat roof calculator prices it.
Plan for winter first: welded seams and clear drains. A white membrane is still worth it over rooms that get hot in July.
Nearby Delaware City Guides
How Dover compares with other Delaware cities on the standard asphalt roof:
- Middletown, DE, 25 mi northwest: $11,730 to $17,880
- Newark, DE, 35 mi north: $11,660 to $17,770
- Wilmington, DE, 40 mi north: $11,790 to $17,970
Expect similar bids in Little Creek, Camden Wyoming, Cheswold, Magnolia and Woodside, all within a short drive of Dover. The Delaware roofing cost guide has the statewide numbers and every city.
Dover, DE Roofing Questions
Will a roof replacement take more than a day?
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.
When does a home policy pay for roofing?
Insurance covers storm and impact damage, not wear. A worn-out roof is a maintenance cost - here about $11,690 to $17,820 for asphalt. After a storm, take photos and have a roofer look before you open a claim.
How do roofers measure a roof in squares?
A square is a hundred square feet of roof surface. For this 2,270 sq. ft. footprint at a 5/12 pitch, figure about 25.7 squares (2,565 sq. ft.). Use the same number when you compare bids.
What permits does a Delaware roofing job need?
Usually. Permit rules are set locally, and most require one for a complete re-roof. A licensed roofer pulls it in their own name.
Related calculators: 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.
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.
More Roofing Cost Guides
Delaware Roofing costs (statewide) · Roofing costs in every state
