California HVAC Help
Source: California HVAC Help (californiahvachelp.com), part of the Local Help Stations network (localhelpstations.com). Last updated November 2, 2026.
California heating and air conditioning rules from official sources: AC and furnace permits by city, energy code testing, contractor licenses, contracts and complaints. Information only.
Key facts (each checked against its source)
- HVAC contractors are licensed by CSLB in the C-20 classification. (source: Contractors State License Board)
- Jobs that need a building permit are not covered by the under $1,000 handyman exemption. (source: California Legislature)
- HVAC changeouts may register energy code certificates later, but before the permit is finalized. (source: California Energy Commission)
- A down payment may not exceed $1,000 or 10 percent of the price, whichever is less. (source: California Legislature)
- CSLB handles complaints for up to four years from the date of the act. (source: Contractors State License Board)
Permits and licenses
- Do I need a permit to replace an AC or furnace in California?: City by city California HVAC permit rules.
- California energy code testing for AC changeouts: The ECC program (formerly HERS) and when testing is registered.
- Mini-split permits in California: What San Jose and other cities require for ductless mini-splits.
- Can I do my own HVAC work in California?: The California owner-builder exemption and how cities handle homeowner permits.
- When does a California contractor need a license?: The $1,000 minor work exemption, license classes and unlicensed contracting penalties.
- California home improvement contract and payment rules: Down payment limits, cancellation rights and service and repair contracts.
Costs, how to and complaints
- HVAC permit costs in California cities: Published HVAC permit costs.
- HVAC work that needs no permit in California cities: Portable units and small repairs California cities exempt.
- How to check a California contractor and complain: Check a license with CSLB, complaint deadlines and permit violation referrals.
California cities
All questions (FAQ) · All sources
Sources
- Contractors State License Board (CSLB): C-20 Warm-Air Heating, Ventilating and Air-Conditioning Contractor classification (checked November 2, 2026)
- California Legislature (California Legislative Information): Business and Professions Code 7048 (minor work exemption) (checked November 2, 2026)
- California Energy Commission: Energy Code Compliance (ECC) Program (checked November 2, 2026)
- California Legislature (California Legislative Information): Business and Professions Code 7159 (home improvement contracts) (checked November 2, 2026)
- Contractors State License Board (CSLB): Filing a Complaint (checked November 2, 2026)
Last updated: