Home Remodeling Costs in New Castle, DE
Remodeling costs in New Castle run about 20% below the Delaware median, based on home values and labor rates across its 2 ZIP codes in New Castle County. The ranges below reflect what New Castle homeowners actually pay, from the cheapest to the priciest part of town.
- Cost index
- 0.80×
- Delaware median
- Median home value
- $296,280
- Zillow ZHVI
- ZIP codes
- 2
- New Castle County
- Projects covered
- 10
- cost + ROI data
What Remodeling Projects Cost in New Castle (2026)
Ranges span New Castle's least to most expensive ZIPs, including the ±15% contractor variance. ROI is the share of cost typically recouped at resale in your census region.
Cost range
$7,429 - $11,109
Typical
$9,200
Cost range
$11,395 - $17,040
Typical
$14,112
Cost range
$17,442 - $26,082
Typical
$21,600
Cost range
$15,892 - $23,764
Typical
$19,680
Cost range
$2,907 - $4,347
Typical
$3,600
Cost range
$11,379 - $17,016
Typical
$14,092
Cost range
$37,145 - $55,545
Typical
$46,000
Cost range
$11,432 - $17,094
Typical
$14,157
Cost range
$1,521 - $2,275
Typical
$1,884
Cost range
$6,460 - $9,660
Typical
$8,000
| Project | Cost range | Typical | ROI | Details |
|---|---|---|---|---|
| Roofing Replacement | $7,429 - $11,109 | $9,200 | 70/100 | ZIP estimate → |
| Window Replacement | $11,395 - $17,040 | $14,112 | 83/100 | ZIP estimate → |
| Kitchen Remodel | $17,442 - $26,082 | $21,600 | 100/100 | ZIP estimate → |
| Bathroom Remodel | $15,892 - $23,764 | $19,680 | 75/100 | ZIP estimate → |
| Garage Door Replacement | $2,907 - $4,347 | $3,600 | 100/100 | ZIP estimate → |
| Deck Addition | $11,379 - $17,016 | $14,092 | 83/100 | ZIP estimate → |
| Basement Finishing | $37,145 - $55,545 | $46,000 | 76/100 | ZIP estimate → |
| Siding Replacement | $11,432 - $17,094 | $14,157 | 100/100 | ZIP estimate → |
| Entry Door Replacement | $1,521 - $2,275 | $1,884 | 100/100 | ZIP estimate → |
| HVAC Replacement | $6,460 - $9,660 | $8,000 | 74/100 | ZIP estimate → |
Sources: Remodeling Magazine Cost vs. Value, Zillow ZHVI, BLS construction wages. Data updated 2026-05. How we calculate estimates
Roofing Replacement Cost by ZIP Code
Pick a project and the prices below update. Costs vary up to 11% across New Castle. Open your ZIP for the full local breakdown.