Contact Us
Contractors State License Board9821 Business Park Drive
Sacramento, CA 95827
Phone (800) 321-CSLB
Other Office Locations
Contact CSLB
This state board receives and processes applications for new contractors licenses, additional classifications and certifications, renewals and changes to existing licenses, home improvement salesperson applications, and maintains the license and historical records of disciplinary actions taken against licenses. Fee payments only are accepted at Sacramento Headquarters.
Headquarters directs the activities of the field offices and initiates all disciplinary actions resulting from investigations. Field office staff investigates complaints against licensed and unlicensed contractors.
| Headquarters Office Contact Information | |
|---|---|
| Location: |
Contractors State License Board9821 Business Park Drive Sacramento, CA 95827 |
| Mailing Address: | P.O. Box 26000 Sacramento, CA 95826 |
| 24-Hour Licensing and Consumer Information: | (800) 321-CSLB (2752) Tips for Calling CSLB's Licensing Information Center |
| Outside California: | (916) 255-3900 |
| Bond Unit Fax: | (916) 255-4023 |
| Reporters/News Media: | CSLB Public Affairs Office |
| Report Unlicensed Activity: | Statewide Investigative Fraud Team |
| Hours of Operation: | Monday through Friday 8:00 a.m. to 5:00 p.m. (closed holidays) |
| Northern Office Contact Information | |
|---|---|
| Location: |
Contractors State License Board9821 Business Park Drive Sacramento, CA 95827 |
| Northern Case Management: | (916) 255-4027 |
| Northern Statewide Investigative Fraud Team: | (916) 255-2924 Report Unlicensed Activity |
| Hours of Operation: | Monday through Friday 8:00 a.m. to 5:00 p.m. (Pacific Time) (closed holidays) |
| Northern District Office Contact Information | |
|---|---|
| Sacramento Intake and Mediation Center: | P.O. Box 269116 Sacramento, CA 95826 (800) 321-CSLB (2752) |
| Central Statewide Investigative Fraud Team: | (559) 490-0580 Report Unlicensed Activity |
| Fresno Investigation Center: |
1277 East Alluvial Ave.Suite 106 Fresno, CA 93720 (800) 321-CSLB (2752) |
| Sacramento Investigative Center: | P.O. Box 269115 Sacramento, CA 95826 (800) 321-CSLB (2752) |
| San Francisco Investigative Center: |
301 Junipero Serra Blvd.Suite 206 San Francisco, CA 94127 (800) 321-CSLB (2752) |
| Hours of Operation: | Monday through Friday 8:00 a.m. to 5:00 p.m. (closed holidays) |
| Northern Branch Office Contact Information | |
|---|---|
| Oakland Branch: |
1515 Clay St.Suite 1105 Oakland, CA 94612 (800) 321-CSLB (2752) |
| Santa Rosa Branch: |
50 D St.Room 400 Santa Rosa, CA 95404 (800) 321-CSLB (2752) |
| Hours of Operation: | Limited |
| Southern Office Contact Information | |
|---|---|
| Location: |
Contractors State License Board12501 East Imperial Hwy. Suite 600 Norwalk, CA 90650 |
| Southern Case Management: | (562) 345-7656 |
| Southern Statewide Investigative Fraud Team: | (562) 345-7600 Report Unlicensed Activity |
| Hours of Operation: | Monday through Friday 8:00 a.m. to 5:00 p.m. (Pacific Time) (closed holidays) |
| Southern District Office Contact Information | |
|---|---|
| Norwalk Intake and Mediation Center: |
12501 East Imperial Hwy.Suite 620 Norwalk, CA 90650 (800) 321-CSLB (2752) |
| Norwalk Investigative Center: |
12501 East Imperial Hwy.Suite 630 Norwalk, CA 90650 (800) 321-CSLB (2752) |
| San Bernardino Investigative Center: |
1845 Business Center Dr.Suite 206 San Bernardino, CA 92408 (800) 321-CSLB (2752) |
| San Diego Investigative Center: |
9246 Lightwave Ave.Suite 130 San Diego, CA 92123 (800) 321-CSLB (2752) |
| Valencia Investigative Center: |
28480 Avenue StanfordSuite 120 Valencia, CA 91355 (800) 321-CSLB (2752) |
| West Covina Investigative Center: |
100 N. Barranca St.Suite 300 West Covina, CA 91791 (800) 321-CSLB (2752) |
| Hours of Operation: | Monday through Friday 8:00 a.m. to 5:00 p.m. (Pacific Time) (closed holidays) |
| Southern Branch Office Contact Information | |
|---|---|
| Bakersfield Branch: |
5800 District Blvd.Suite 300 Bakersfield, CA 93313 (800) 321-CSLB (2752) |
| Hours of Operation: | Limited |


