5 min read · Cost
How much of California siding cost is labor vs. material? The split varies by project type and tells you something about the work. Here's the breakdown.
Typical California siding cost breakdown
On a standard valley Hardie ColorPlus re-side: roughly 45-55% labor, 30-40% materials, 10-15% overhead and profit, 2-5% permits and other costs. Material includes cladding, WRB, flashing, fasteners, caulk, trim. Labor includes tear-off, install, finish, and project management.
Why the split varies by project
Custom architecture with extensive trim: labor share higher (60-65%). Production tract with simple architecture: more balanced. Premium architectural specs (Aspyre, Reveal, premium WRB): material share higher (40-45%). Substrate-repair-heavy projects: labor share higher (60%).
What labor includes
Tear-off of existing cladding. Substrate inspection and repair. WRB installation with tape. Flashing detail at all penetrations. Cladding install per spec. Trim install. Caulk and finish. Walk-through and punch list. Project management and homeowner communication.
What material includes
Cladding (Hardie or alternative). WRB (Tyvek, Typar, etc.). Flashing components (Z-flashing, step flashing, kick-out, sill pan). Fasteners (corrosion-rated for region). Caulk (elastomeric). Trim (Hardie Trim). Project supplies.
Where contractors mark up materials
Quality contractors mark up materials at standard rates (15-25% typical). Some contractors aggressively low-bid materials and mark up labor; others vice versa. The total project cost is what matters; the split can vary.
Why DIY 'material only' purchase rarely saves money
Homeowners sometimes try to source materials themselves and pay contractor labor-only. Contractor pricing through distributor often beats homeowner retail pricing on Hardie. The 'savings' from material self-sourcing often disappear or reverse.
How to read the labor/material split
Heavily labor-weighted: custom or restoration work. Balanced: standard residential. Heavily material-weighted: premium product specs. The split tells you what's happening on the project.
Insurance reimbursement framework
Insurance claims sometimes reimburse for materials only, expecting homeowner to find own labor. This is uncommon and usually problematic — you become your own GC. Usually insurance pays full repair (both labor and material) at adjuster-negotiated rates.
What you can do with this breakdown information
Compare contractor estimates: similar projects should have similar labor/material splits. Wildly different splits suggest different scope assumptions. Material-heavy bid: premium specs or material padding. Labor-heavy bid: substantial restoration or custom work.
California siding cost breakdown
| Project type | Labor | Material | OH/profit/permits |
|---|---|---|---|
| Standard valley residential | 45-55% | 30-40% | 10-15% |
| Custom architectural | 55-65% | 25-35% | 10-15% |
| Premium product specs | 40-50% | 35-45% | 10-15% |
| Restoration-heavy | 55-65% | 25-35% | 10-15% |
Key takeaways
- Standard: 45-55% labor, 30-40% material, balance overhead/permits
- Custom architecture: labor share higher
- Premium product specs: material share higher
- Total cost matters; split is diagnostic
FAQ
Quick Answers
Possible but rarely saves money; contractors get distributor pricing.
Yes typically; material-only reimbursement is uncommon and problematic.
Sources
Authoritative references
- James Hardie — official product & installation resources
- Contractors State License Board (CSLB) — verify a California contractor
External links to government, code, and manufacturer sources. Sierra Siding is not affiliated with these organizations; references are provided for verification.