Home Improvement Costs in California | All Projects (2026)
Planning a home improvement project in California? Below is a complete breakdown of estimated costs for 13 common projects, based on 2026 data. The most expensive typical project is Siding Replacement at $17,881, while Home Security System comes in at $300.
California Cost Snapshot
Projects Covered
13
Avg. Typical Cost
$9,073
Renovation Estimate
$9,537
All Home Improvement Costs in California
Sorted by typical cost, most expensive first. Click any project to see a detailed breakdown for California.
| Project | Low | Typical | High |
|---|---|---|---|
| Siding Replacement | $7,529 | $17,881 | $38,792 |
| Childcare | $10,293 | $16,763 | $22,628 |
| Solar Panel | $10,040 | $15,060 | $25,100 |
| Roof Replacement | $10,277 | $13,213 | $17,617 |
| Deck Building | $6,594 | $13,187 | $26,375 |
| Window Replacement | $6,402 | $10,038 | $18,748 |
| HVAC Replacement | $6,662 | $9,351 | $12,440 |
| Garage Door Replacement | $2,141 | $5,556 | $6,717 |
| Flooring Installation | $2,025 | $5,062 | $10,125 |
| Interior Painting | $1,417 | $4,475 | $9,090 |
| Exterior Painting | $1,575 | $4,425 | $8,763 |
| Water Heater Replacement | $2,176 | $2,641 | $7,685 |
| Home Security System | $120 | $300 | $480 |
Full Renovation Estimate for California
If you are planning a major renovation that includes a kitchen remodel, bathroom remodel, new flooring, and interior painting, here is the combined estimate for California:
Low End
$3,442
Typical
$9,537
High End
$19,215
| Included Project | Low | Typical | High |
|---|---|---|---|
| Flooring Installation | $2,025 | $5,062 | $10,125 |
| Interior Painting | $1,417 | $4,475 | $9,090 |
| Total | $3,442 | $9,537 | $19,215 |
This estimate combines kitchen remodel, bathroom remodel, flooring, and interior painting. Actual costs depend on scope, materials, and contractor pricing.
How California Compares to Neighboring States
The table below shows how the average project cost across all calculators in California compares to its neighboring states. If you live near a state border, nearby contractors may offer competitive pricing.
How these costs were calculated
Data sources: Bureau of Labor Statistics (OEWS), Craftsman National Estimator, NAHB permit data
Granularity: State-level averages; metro areas may vary 20–30%
See our full methodology. Report an error.