Identity and compliance
93
out of 100
Current public credentials or entity standing. Technology never changes this score.
Evidence coverage: 100%
Observed: Current public credential, Credential tenure.
Roberts Firestop
insulation and acoustical contractor in Stockton, CA
Zensight CertifiedCSLB license verified #478057
Roberts Firestop is a C-2 licensed insulation and acoustical contractor in Stockton, on the state contractor registry since 1985.
Evidence scores
Separate dimensions prevent technology choices from being mistaken for trust.
Operational activity
Unknown
Fresh operating and activity observations. Missing evidence stays unknown.
Evidence coverage: 0%
No governed observation is available yet.
Digital readiness
Unknown
Observable website capabilities and freshness, not a judgment of legitimacy.
Evidence coverage: 0%
No governed observation is available yet.
Scores are computed from observed evidence. Payment cannot change a score, and unknown is not treated as failure.
Evidence timeline
Every dated fact on record for Roberts Firestop, with the source it came from.
Last checked 35 days ago
License status checked
Authority verifiedCSLB reported the license as "clear" on this date.
License first issued
Authority verifiedCSLB license 478057 (C-2). Estimated from 40 full years of registry tenure as of 2026-08-11; CSLB holds the exact issue date.
Facts are shown as their source reported them on the date shown. A missing event means Zensight has no evidence for it, not that it did not happen.
Verified with CSLB
This license was confirmed current with California Contractors State License Board on 2026-08-11, and is re-checked on its monitoring schedule.
- Address
- 3239 LAKESHORE CT, Stockton, CA 95219
- Phone
- (510) 867 5656
- License number
- 478057 (C-2)
- Years on public record
- 40
- Zensight rank
- #2 of insulation contractors in Stockton
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<a href="https://zensight.ai/biz/stockton-insulation-roberts-firestop"><img src="https://zensight.ai/badge/stockton-insulation-roberts-firestop.svg?variant=certified" width="320" height="104" alt="Zensight Certified: Roberts Firestop"></a>
License status last checked with California Contractors State License Board on 2026-08-11. Confirm current status with CSLB before hiring.