- Rating
- 5.0 / 5.0 from 75 reviews
- Open
- 7 days a week
- Service area
- San Francisco
- Phone
- (925) 204-2744
About
Temescal AC Repair serves San Francisco with 24/7 availability. The business holds a 5.0 rating from 75 reviews on Google.
Service Area
Serving San Francisco.
Hiring an HVAC Contractor in San Francisco, California
In California, HVAC work falls under the C-20 classification—Warm-Air Heating, Ventilating and Air-Conditioning Contractor. Before you hire, verify that any contractor you're considering holds an active C-20 license. The Contractors State License Board (CSLB) maintains a searchable database where you can look up a license number or business name to confirm its status and check for any complaints.
Building permits are often required for HVAC work in California. The California Building Standards Code requires a separate permit for most construction, alteration, or repair projects. Permit rules vary by city and county, so contact your local San Francisco building department or your contractor to determine what permits apply to your specific job.
When you call an HVAC contractor, ask to see or verify their license number before signing a contract. Request references, get a written estimate, and review the contract terms carefully. The CSLB recommends that you read its Hiring a Contractor guide before committing to any work.
How do I check if an HVAC contractor's license is valid?
Visit the CSLB website and use their license lookup tool. You can search by contractor license number (up to 8 digits) or by business name. The search will show the license status and any complaint disclosures. [4]
What license classification do HVAC contractors need in California?
HVAC contractors must hold a C-20 license, which covers Warm-Air Heating, Ventilating and Air-Conditioning work. [1]
Do I need a building permit for HVAC work in San Francisco?
California's Building Standards Code generally requires permits for HVAC construction, alteration, and repair. Permit requirements vary by city and county. Check with the San Francisco building department or ask your contractor what permits your project needs. [3]
What should I ask when calling an HVAC contractor?
Ask for their license number and verify it through the CSLB. Request references, ask for a written estimate, and make sure you understand the contract terms and any permit requirements before you commit. [2, 4]
Where can I find my local San Francisco building department?
The CSLB website lists all city building departments in California, including San Francisco's. Contact your local department to learn about permit requirements for your HVAC project. [3]
Sources
- California CSLB — licensing classifications (read 2026-09-20)
- California CSLB — hire a licensed contractor (read 2026-09-20)
- California CSLB — do I need a building permit? (read 2026-09-20)
- California CSLB — check a license (read 2026-09-20)
Contact Information
Business Hours
| Monday | 12 AM – 11:59 PM |
|---|---|
| Tuesday | 12 AM – 11:59 PM |
| Wednesday | 12 AM – 11:59 PM |
| Thursday | 12 AM – 11:59 PM |
| Friday | 12 AM – 11:59 PM |
| Saturday | 12 AM – 11:59 PM |
| Sunday | 12 AM – 11:59 PM |