Excavation and Grading cost in Petaluma, CA
Petaluma homeowners typically pay $9,450 – $28,400 for excavation and grading. Local labor and materials price 26% above the national average.
Petaluma average
$18,900
Typical low
$9,450
Typical high
$28,400
Per cubic yard
$63 – $190
Sample ZIP
94952
What drives Petaluma pricing
Local labor
Licensed Petaluma contractors carry California workers' comp and prevailing wage pressure, and crews here quote roughly 26% above the national labor average. Demand in the North Bay market peaks in spring, so booking early usually beats a rush premium.
Permits & code
Petaluma follows the California Building Standards Code, so most structural, electrical, plumbing and re-roof work needs a permit from the Petaluma building department plus Title 24 energy compliance. Wildfire WUI hardening standards apply across much of the North Bay.
Climate & conditions
Petaluma sits in a mild climate with a serious wildfire season, so expect ember-resistant materials and defensible-space detailing.
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Estimated project cost
$11,115 – $14,963
Most homeowners pay around $13,039
Compare quality / material level
Cost by material in Petaluma
Installed Petaluma pricing per cubic yard.
| Option | Installed cost |
|---|---|
| Simple grading | $78 – $105 |
| Standard excavation and haul | $105 – $140 |
| Rock or difficult soil | $140 – $185 |
| Excavation with retaining and drainage | $185 – $250 |
Where the money goes in Petaluma
A typical $18,900 Petaluma project, broken down by line item.
- Labor0.45% · $85
- Materials0.38% · $72
- Permits & inspections0.05% · $9
- Overhead & profit0.12% · $23
Common add-ons
Extras that show up on Petaluma quotes but rarely in the headline price.
Soil haul-off
Rock breaking
Erosion control
Compaction testing
Ways to save in Petaluma
- Keep excavated soil on site for backfill and berms to avoid haul-off.
- Schedule when the ground is dry — wet soil doubles handling time.
- Collect three written bids on an identical scope — spreads of 20–40% are normal.
- Book in the off-season and stay flexible on the start date to save 5–15%.
- Bundle nearby work into one mobilization so you only pay setup and travel once.
- Ask what the contractor would change to cut 10% without hurting durability.
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