What is prevailing wage in California?

California prevailing wage (Labor Code §1770 et seq.) is one of the most robust prevailing wage regimes in the United States. It affects public construction and some private projects with public funding but typically doesn't affect private residential remodels.

What triggers prevailing wage:

1. Public works projects over $1,000 — state, county, city, school, special district construction.
2. Projects with public funding — even private projects that receive public subsidy, tax credits, or similar.
3. Some ADU-related incentive programs — CalHFA ADU Grant, some locally-funded programs.

What's typically NOT covered:

• Private residential remodels for single-family or small multi-family.
• Private custom homes.
• Private ADU construction (unless funded by specific public programs).
• Pure commercial private construction.

How prevailing wage is set:

• DIR Director issues determinations by job classification and county.
• Based on collective bargaining agreements and survey data.
• Published at dir.ca.gov.
• Updated semi-annually (February and August typically).
• Must be posted at the project site.

Components of prevailing wage:

1. Basic hourly rate — direct wage to worker.
2. Health and welfare — medical, dental, life insurance contribution.
3. Pension — retirement plan contribution.
4. Vacation and holiday — paid time off.
5. Training — apprenticeship/training fund contribution.
6. Overtime — time-and-a-half after 8 hours/day and 40 hours/week; double time beyond.

Total prevailing wage rates for skilled trades typically range $60-$110+/hour in major California counties (basic + fringe).

Compliance requirements on public projects:

1. Register with DIR — contractors and subs must register to bid public works.
2. Certified payroll reports — submitted weekly to the awarding body.
3. Apprentice utilization — projects must employ apprentices in specified ratios.
4. Site posting — prevailing wage rates posted on-site.
5. Retention and audits — records kept 4 years, subject to audit.

Penalties for violations:

• Back wages owed to workers.
• Liquidated damages equal to unpaid wages.
• Civil penalties up to $200 per violation per worker per day.
• Debarment from public works for up to 3 years.
• Criminal prosecution for willful violations.

How prevailing wage affects homeowners:

• Most homeowners never encounter it directly.
• If using CalHFA ADU Grant or similar public funding, verify whether prevailing wage applies.
• Some local programs (city-subsidized weatherization, heat pump rebates) may have prevailing wage strings attached.
• Privately-funded residential is generally exempt.

Contractor perspective:

• Prevailing wage doubles effective labor cost vs. private-work prevailing market rate in most CA counties.
• Public projects compensate with larger project scope but margin pressure is real.
• Contractors bidding both public and private often maintain separate payroll and compliance functions.

Common homeowner questions:

• "Do I need to pay prevailing wage?" — For private residential remodel, almost always no.
• "If I'm hiring through a contractor who does public work, do they pay prevailing wage on my house?" — No, prevailing wage is project-based, not contractor-based.
• "What if I receive public rebates for heat pump or solar?" — Rebates don't typically trigger prevailing wage; funded grant programs might.

Other states with prevailing wage:

• Federal: Davis-Bacon Act — for federal construction over $2,000.
• New York: Article 8 of Labor Law.
• Massachusetts, Washington, Oregon, Illinois, Connecticut, others — state prevailing wage laws.
• Texas, Florida, others — no state prevailing wage (though federal Davis-Bacon applies on federal projects).

AskBaily's residential contractors operate primarily on private residential remodels where prevailing wage doesn't apply. If your project involves public funding (e.g., CalHFA ADU Grant), we flag this in scoping.