H & K Grinnell Underground Const
Verified against CSLB on · View on CSLB
License details
- License number
- 653777
- Classifications
- License term on file
- September 8, 1992 – September 30, 2026
Business
- (510) 552 5452 (CSLB public record)
- P O BOX 2704, Oroville, CA 95965Butte County
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What to check next
Frequently asked questions
Is H & K Grinnell Underground Const licensed in California?
Yes. H & K Grinnell Underground Const holds an active California state contractor license (CSLB #653777), verified against the CSLB public record on August 4, 2026.
What is H & K Grinnell Underground Const's CSLB license number?
H & K Grinnell Underground Const's California contractor license number is 653777. 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 H & K Grinnell Underground Const licensed for?
H & K Grinnell Underground Const is classified under General Engineering (A) by the CSLB.
How do I verify H & K Grinnell Underground Const's license myself?
Look up license #653777 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 August 4, 2026.
Verify it yourself: How to verify a California contractor license · Look up #653777 on CSLB
See an error in this record? Report incorrect information. Status reflects CSLB data as of the date shown above.