GREG LONIEWSKI
General Building Contractor license 951695 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 August 31, 2026, which is 14 days from today. If your project runs past that date, ask whether the renewal has been filed.
| License holder | GREG LONIEWSKI |
|---|---|
| Business name | GREG LONIEWSKI |
| License type | General Building Contractor |
| License number | 951695 |
| Status today | Expiring soon |
| Expiration date | August 31, 2026 |
| City | Yosemite National Park |
| County of record | Mariposa |
| Phone on file | (209) 769 7809 |
| 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 85 licensed general building contractors on record in Mariposa County. Compare them all →