JEFF MADDERRA CONSTRUCTION
General Building Contractor license 813623 issued by the California Contractors State License Board. Status shown as of August 17, 2026.
This license is active but expires soon. It is valid through September 30, 2026, which is 44 days from today. If your project runs past that date, ask whether the renewal has been filed.
| License holder | JEFF MADDERRA CONSTRUCTION |
|---|---|
| Business name | JEFF MADDERRA CONSTRUCTION |
| License type | General Building Contractor |
| License number | 813623 |
| Status today | Expiring soon |
| Expiration date | September 30, 2026 |
| City | Copperopolis |
| County of record | Calaveras |
| Phone on file | (916) 488 4800 |
| Classifications | B |
| Board status | CLEAR |
| Contractor bond | $25,000 |
| Issuing authority | California Contractors State License Board |
| First seen in public file | August 17, 2026 |
| Last confirmed | August 17, 2026 |
How to confirm this yourself
This page reproduces the CSLB public license file, which the agency republishes daily. Before you hire anyone, confirm the record at the source and ask the contractor for proof of insurance separately, since licensing and insurance are not the same thing and the state file does not cover insurance.
Verify at CSLB → File a complaint
There are 308 licensed general building contractors on record in Calaveras County. Compare them all →