Roof Replacement Cost in Delaware (2026 Calculator)

Delaware roofers earned a median of $28.58 an hour in May 2025, about 7.2% above the national median of $26.65. The mean in Delaware was $26.58 an hour across 230 employed roofers.

Combined average sales tax in Delaware is 0% as of 2026-07-01. Delaware has no statewide sales tax.

Calculator for Delaware

Roof size

Many codes limit how many roofs can be layered. Check locally. This page does not state a layer limit.

Check your local building department.

Delaware combined average sales tax is 0% (Tax Foundation, 2026-07-01). Guide prices often already include materials tax, so this box starts off.

Advanced inputs

Install hours, tear-off hours, and labor burden have no published source, so this mode stays off until you type them. BLS wages are what roofers earn, not what contractors bill.

Estimated range in Delaware

$12,023.21 – $22,127.77

Typical estimate $17,462.57 Estimate (non-official)

Cost breakdown Estimate (non-official)
Install $9,314.56–$13,971.85 (typical $12,015.79)
Tear-off $2,328.64–$6,985.92 (typical $4,657.28)
Decking $0.00–$0.00 (typical $0.00)
Disposal $280.00–$670.00 (typical $489.50)
Permit $100.00–$500.00 (typical $300.00)

22.36 squares · 2,236 sq ft of roof · $7.81 per sq ft · pitch factor 1.118 · 0 deck sheets

Sources

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Delaware cost factors

Labor

Delaware roofer median pay is $28.58 an hour and mean pay is $26.58 an hour, with 230 roofers employed. Median annual pay is $59,440.00 and mean annual pay is $55,280.00. The wage index is 1.072, which is about 7.2% above the national median (U.S. median $26.65).

Source: BLS OEWS, May 2025

Sales tax

Delaware has no statewide sales tax, per the Tax Foundation as of 2026-07-01. The combined average on file is 0%, with average local tax at 0% and a maximum local rate of 0%.

Source: Tax Foundation, 2026-07-01

Storm exposure

NOAA Storm Events counted 22 hail reports in Delaware from 2021 through 2025 (16 at 1 inch or larger, 2 at 2 inches or larger, largest 2.25 inches). Delaware is 47th of 51 for hail reports. Wind reports were 205 (48th of 51), tornado reports 8, tropical reports 0, and winter-storm or heavy-snow reports 17. These are reports, not unique storms.

Source: NOAA Storm Events, 2021–2025

Building code

IRC adopted by some state/local jurisdictions, not statewide (ICC chart) (per ICC adoption chart, 2026-04; confirm locally).

Source: ICC adoption chart, 2026-04

Housing activity

Census building permits authorized 5,422 single-family homes in Delaware in 2025. The average valuation for Delaware is withheld here because the published figure looks anomalous.

Source: Census BPS, 2025

Wind and snow design values

Wind speed and ground snow load are site-specific. Look up the address in the ASCE Hazard Tool. This page does not print a design number for Delaware.

Talk to a local roofer

How Delaware compares

MeasureDelawareSouth meanUnited States
Roofer median hourly wage$28.58$23.74$26.65
Combined average sales tax0%7.21%

The region column is the mean of state roofer medians, and of combined tax rates, inside the South Census region. The national wage file has no combined sales-tax rate.

Source: BLS OEWS, May 2025

Installed price by material in Delaware

National guide prices, adjusted only by the labor share and the Delaware roofer wage index (local labor factor 1.041). Estimate (non-official)

MaterialPer square, low–typical–highPer sq ft, typical
3-tab asphalt shingles $312.42–$520.70 (typical $416.56) Estimate (non-official) $3.12–$5.21 (typical $4.17)
Sources
Architectural (dimensional) asphalt shingles $416.56–$624.84 (typical $537.36) Estimate (non-official) $4.17–$6.25 (typical $5.37)
Sources
Premium / luxury (designer) asphalt shingles $520.70–$728.98 (typical $624.84) Estimate (non-official) $5.21–$7.29 (typical $6.25)
Sources
Standing-seam metal $937.26–$3,124.20 (typical $1,926.59) Estimate (non-official) $9.37–$31.24 (typical $19.27)
Sources
Corrugated / exposed-fastener metal panels $416.56–$1,562.10 (typical $963.30) Estimate (non-official) $4.17–$15.62 (typical $9.63)
Sources
Concrete tile $728.98–$1,978.66 (typical $1,353.82) Estimate (non-official) $7.29–$19.79 (typical $13.54)
Sources
Clay tile $833.12–$2,291.08 (typical $1,562.10) Estimate (non-official) $8.33–$22.91 (typical $15.62)
Sources
Natural slate $1,041.40–$3,124.20 (typical $2,343.15) Estimate (non-official) $10.41–$31.24 (typical $23.43)
Sources
Synthetic / composite slate $937.26–$1,562.10 (typical $1,249.68) Estimate (non-official) $9.37–$15.62 (typical $12.50)
Sources
Wood (cedar) shakes $624.84–$1,562.10 (typical $1,093.47) Estimate (non-official) $6.25–$15.62 (typical $10.93)
Sources
Flat/low-slope: TPO membrane $416.56–$1,301.75 (typical $937.26) Estimate (non-official) $4.17–$13.02 (typical $9.37)
Sources
Flat/low-slope: EPDM rubber membrane $468.63–$1,353.82 (typical $911.23) Estimate (non-official) $4.69–$13.54 (typical $9.11)
Sources
Flat/low-slope: modified bitumen $416.56–$833.12 (typical $624.84) Estimate (non-official) $4.17–$8.33 (typical $6.25)
Sources

Questions

How much does a roof replacement cost in Delaware?

For a 2,000 sq ft footprint at a 6/12 pitch, architectural asphalt shingles, 10% waste, one tear-off layer, and no decking replacement, with sales tax left off, the Delaware range is $12,023.21 to $22,127.77 (typical $17,462.57, about $7.81 per sq ft of roof). That is an Estimate (non-official), moved with the local labor factor from a roofer wage index of 1.072.

Do I pay sales tax on a new roof in Delaware?

Delaware has no statewide sales tax (Tax Foundation, as of 2026-07-01). The combined average rate on file is also 0%.

How common is hail damage in Delaware?

NOAA logged 22 hail reports in Delaware from 2021 through 2025 (16 at 1 inch or larger, 2 at 2 inches or larger, largest 2.25 inches). Delaware is 47th of 51 for hail reports. Counts are reports, not unique storms.

Do I need a permit to replace a roof in Delaware?

Many cities in Delaware require a permit for a roof replacement. The fee field starts from a national estimate range and should be checked locally.

What do roofers earn in Delaware?

BLS OEWS for May 2025 puts the Delaware roofer median at $28.58 an hour and the mean at $26.58 an hour, with 230 roofers employed. That median is about 7.2% above the national median of $26.65. These are worker wages, not contractor bill rates.

Sources on this page

Last updated 2026-10-24.