Diederich's D Security Inc
Verified against CSLB on · View on CSLB
License details
- License number
- 765024
- Classifications
- D-16 · Hardware, Locks and Safes
- License term on file
- June 28, 1999 – June 30, 2027
Business
- (909) 985 7231 (CSLB public record)
- 1658 W 11TH STREET SUITE I, Upland, CA 917863565San Bernardino County
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Frequently asked questions
Is Diederich's D Security Inc licensed in California?
Yes. Diederich's D Security Inc holds an active California state contractor license (CSLB #765024), verified against the CSLB public record on June 17, 2026.
What is Diederich's D Security Inc's CSLB license number?
Diederich's D Security Inc's California contractor license number is 765024. Look that number up with the CSLB "Check a License" tool to confirm its current status against the public record yourself.
What kind of work is Diederich's D Security Inc licensed for?
Diederich's D Security Inc is classified under Hardware, Locks and Safes (D-16) by the CSLB.
How do I verify Diederich's D Security Inc's license myself?
Look up license #765024 with the CSLB "Check a License" tool and compare the status, bond, and workers' compensation details against what's shown on this page. This page reflects the CSLB public record as of June 17, 2026.
Verify it yourself: How to verify a California contractor license · Look up #765024 on CSLB
See an error in this record? Report incorrect information. Status reflects CSLB data as of the date shown above.