Home Remodeling Costs in San Marcos, CA
Remodeling costs in San Marcos run about 38% above the California median, based on home values and labor rates across its 2 ZIP codes in San Diego County. The ranges below reflect what San Marcos homeowners actually pay, from the cheapest to the priciest part of town.
- Cost index
- 1.38×
- California median
- Median home value
- $965,294
- Zillow ZHVI
- ZIP codes
- 2
- San Diego County
- Projects covered
- 10
- cost + ROI data
What Remodeling Projects Cost in San Marcos (2026)
Ranges span San Marcos'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
$12,610 - $19,309
Typical
$15,813
Cost range
$19,342 - $29,618
Typical
$24,255
Cost range
$29,606 - $45,333
Typical
$37,125
Cost range
$26,974 - $41,303
Typical
$33,825
Cost range
$4,934 - $7,555
Typical
$6,188
Cost range
$19,315 - $29,576
Typical
$24,221
Cost range
$63,049 - $96,542
Typical
$79,063
Cost range
$19,404 - $29,712
Typical
$24,332
Cost range
$2,582 - $3,954
Typical
$3,238
Cost range
$10,965 - $16,790
Typical
$13,750
| Project | Cost range | Typical | ROI | Details |
|---|---|---|---|---|
| Roofing Replacement | $12,610 - $19,309 | $15,813 | 76/100 | ZIP estimate → |
| Window Replacement | $19,342 - $29,618 | $24,255 | 85/100 | ZIP estimate → |
| Kitchen Remodel | $29,606 - $45,333 | $37,125 | 100/100 | ZIP estimate → |
| Bathroom Remodel | $26,974 - $41,303 | $33,825 | 91/100 | ZIP estimate → |
| Garage Door Replacement | $4,934 - $7,555 | $6,188 | 100/100 | ZIP estimate → |
| Deck Addition | $19,315 - $29,576 | $24,221 | 100/100 | ZIP estimate → |
| Basement Finishing | $63,049 - $96,542 | $79,063 | 71/100 | ZIP estimate → |
| Siding Replacement | $19,404 - $29,712 | $24,332 | 100/100 | ZIP estimate → |
| Entry Door Replacement | $2,582 - $3,954 | $3,238 | 100/100 | ZIP estimate → |
| HVAC Replacement | $10,965 - $16,790 | $13,750 | 77/100 | 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 13% across San Marcos. Open your ZIP for the full local breakdown.