Fire sprinkler
Rjohn Development Co
Rjohn Development Co is a fire sprinkler company based in Petaluma, California. It holds an active CSLB C-16 Fire Protection Contractor license (No. 415555) from the California Contractors State License Board, verified against state records on October 24, 2026.
State license verified October 24, 2026
California Contractors State License Board licenses
| License | Type | Expires | Status |
|---|---|---|---|
| 415555 | CSLB C-16 Fire Protection Contractor | April 30, 2028 | active |
Services
- Fire sprinkler. Design, installation, inspection, testing and maintenance of fire sprinkler systems, including underground fire mains and dwelling systems.
Services are inferred from the company's state licenses. Confirm specific capabilities with the company.
Locations
- Primary: Petaluma, CA 94952 · Sonoma County
Other licensed companies in Petaluma
Bryan Masterson Enterprises
Fire sprinkler 1 active license
Goebel Construction Inc
Fire sprinkler 1 active license
Incom Mechanical Inc
Fire sprinkler 1 active license
JS Fire Protection
Fire sprinkler 1 active license
Ongaro & Sons
Fire sprinkler 1 active license
Pioneer Fire Inc
Fire sprinkler 1 active license
Source: California Contractors State License Board (CSLB) licensee records, retrieved October 24, 2026. Machine-readable: JSON · Markdown.