Home Remodeling Costs in Saint Louis County, MO
Remodeling costs in Saint Louis County run about 4% below the Missouri median, based on home values and labor rates across its 3 ZIP codes in Saint Louis County. The ranges below reflect what Saint Louis County homeowners actually pay, from the cheapest to the priciest part of town.
- Cost index
- 0.96×
- Missouri median
- Median home value
- $204,164
- Zillow ZHVI
- ZIP codes
- 3
- Saint Louis County
- Projects covered
- 10
- cost + ROI data
What Remodeling Projects Cost in Saint Louis County (2026)
Ranges span Saint Louis County'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
$6,842 - $18,118
Typical
$11,040
Cost range
$10,496 - $27,792
Typical
$16,934
Cost range
$16,065 - $42,539
Typical
$25,920
Cost range
$14,637 - $38,757
Typical
$23,616
Cost range
$2,678 - $7,090
Typical
$4,320
Cost range
$10,481 - $27,752
Typical
$16,910
Cost range
$34,213 - $90,591
Typical
$55,200
Cost range
$10,529 - $27,880
Typical
$16,988
Cost range
$1,401 - $3,710
Typical
$2,261
Cost range
$5,950 - $15,755
Typical
$9,600
| Project | Cost range | Typical | ROI | Details |
|---|---|---|---|---|
| Roofing Replacement | $6,842 - $18,118 | $11,040 | 54/100 | ZIP estimate → |
| Window Replacement | $10,496 - $27,792 | $16,934 | 70/100 | ZIP estimate → |
| Kitchen Remodel | $16,065 - $42,539 | $25,920 | 95/100 | ZIP estimate → |
| Bathroom Remodel | $14,637 - $38,757 | $23,616 | 77/100 | ZIP estimate → |
| Garage Door Replacement | $2,678 - $7,090 | $4,320 | 100/100 | ZIP estimate → |
| Deck Addition | $10,481 - $27,752 | $16,910 | 74/100 | ZIP estimate → |
| Basement Finishing | $34,213 - $90,591 | $55,200 | 74/100 | ZIP estimate → |
| Siding Replacement | $10,529 - $27,880 | $16,988 | 100/100 | ZIP estimate → |
| Entry Door Replacement | $1,401 - $3,710 | $2,261 | 100/100 | ZIP estimate → |
| HVAC Replacement | $5,950 - $15,755 | $9,600 | 63/100 | 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 96% across Saint Louis County. Open your ZIP for the full local breakdown.