THOMAS BURTON NIEWALD
General Building Contractor license 870170 issued by the California Contractors State License Board. Status shown as of August 19, 2026.
This license is active. It is valid through December 31, 2027, 499 days from today, according to the most recent CSLB public file.
| License holder | THOMAS BURTON NIEWALD |
|---|---|
| Business name | THOMAS BURTON NIEWALD |
| License type | General Building Contractor |
| License number | 870170 |
| Status today | Active |
| Expiration date | December 31, 2027 |
| City | Santa Rosa |
| County of record | Sonoma |
| Phone on file | (707) 696 2659 |
| 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 18, 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 2,387 licensed general building contractors on record in Sonoma County. Compare them all →