Home Remodeling Costs in Alton, NH
Remodeling costs in Alton run about 28% above the New Hampshire median, based on home values and labor rates across its 2 ZIP codes in Belknap County. The ranges below reflect what Alton homeowners actually pay, from the cheapest to the priciest part of town.
- Cost index
- 1.28×
- New Hampshire median
- Median home value
- $609,048
- Zillow ZHVI
- ZIP codes
- 2
- Belknap County
- Projects covered
- 10
- cost + ROI data
What Remodeling Projects Cost in Alton (2026)
Ranges span Alton'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
$10,948 - $19,044
Typical
$14,720
Cost range
$16,793 - $29,212
Typical
$22,579
Cost range
$25,704 - $44,712
Typical
$34,560
Cost range
$23,419 - $40,738
Typical
$31,488
Cost range
$4,284 - $7,452
Typical
$5,760
Cost range
$16,769 - $29,170
Typical
$22,547
Cost range
$54,740 - $95,220
Typical
$73,600
Cost range
$16,847 - $29,305
Typical
$22,651
Cost range
$2,242 - $3,900
Typical
$3,014
Cost range
$9,520 - $16,560
Typical
$12,800
| Project | Cost range | Typical | ROI | Details |
|---|---|---|---|---|
| Roofing Replacement | $10,948 - $19,044 | $14,720 | 63/100 | ZIP estimate → |
| Window Replacement | $16,793 - $29,212 | $22,579 | 71/100 | ZIP estimate → |
| Kitchen Remodel | $25,704 - $44,712 | $34,560 | 100/100 | ZIP estimate → |
| Bathroom Remodel | $23,419 - $40,738 | $31,488 | 91/100 | ZIP estimate → |
| Garage Door Replacement | $4,284 - $7,452 | $5,760 | 100/100 | ZIP estimate → |
| Deck Addition | $16,769 - $29,170 | $22,547 | 79/100 | ZIP estimate → |
| Basement Finishing | $54,740 - $95,220 | $73,600 | 70/100 | ZIP estimate → |
| Siding Replacement | $16,847 - $29,305 | $22,651 | 100/100 | ZIP estimate → |
| Entry Door Replacement | $2,242 - $3,900 | $3,014 | 100/100 | ZIP estimate → |
| HVAC Replacement | $9,520 - $16,560 | $12,800 | 92/100 | 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 29% across Alton. Open your ZIP for the full local breakdown.