Do You Need a Permit for HVAC Work in California?
California requires permits for most HVAC work, but many homeowners don't know this. Here's what requires a permit and why it matters.
HVAC permits might seem like bureaucratic hassle, but they serve important purposes. Here's what Bay Area homeowners should know.
What Requires a Permit
Typically Requires a Permit - New HVAC system installation - Replacing a furnace or AC - Adding ductwork - Installing a new duct system - Significant alterations to existing systems
Usually Doesn't Require a Permit - Routine maintenance - Filter changes - Minor repairs (replacing a capacitor, thermostat, etc.) - Like-for-like component replacement in some jurisdictions
Rules vary by city and county, so check your local requirements.
Why Permits Matter
Safety Inspections verify: - Gas connections are safe - Electrical work meets code - Combustion venting is proper - Installation follows manufacturer requirements
Code Compliance California's Title 24 energy code requires: - Proper sizing documentation - Duct testing for new systems - Efficiency standards
Insurance If unpermitted work causes a fire or other damage, insurance claims may be denied.
Selling Your Home Unpermitted work can: - Show up in inspections - Complicate sales - Require expensive remediation
The Permit Process
Typical Steps 1. Contractor pulls permit from local building department 2. Work is performed 3. Inspector reviews the installation 4. Permit is closed/finaled
Cost Permit fees vary but are typically a few hundred dollars. Your contractor usually handles this.
Timing Inspections may need to be scheduled, which can add time.
Red Flags
Be cautious if a contractor: - Offers to do the job without a permit "to save money" - Says permits aren't needed when they clearly are - Wants you to pull the permit as a homeowner (uncommon for professional work)
Your Responsibility
Even if a contractor handles permits, you're ultimately responsible for ensuring work is permitted and inspected. Keep permit documentation with your home records.
If you discover previous unpermitted work, you may be able to get it permitted after the fact, though this can involve opening walls or other verification.