Location
Address
1245 N Iris Ave, Rialto, CA, 92376
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Gray Rock Engineering Inc
Gray Rock Engineering Inc, 1245 N Iris Ave, Rialto, CA holds a Concrete license according to the California license board.
Their BuildZoom score of 97 ranks in the top 18% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Gray Rock Engineering Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Gray Rock Engineering Inc Services
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Gray Rock Engineering Inc Contact Information
Phone Number: (800) 995-0777
Address: 1245 N Iris Ave, Rialto, CA 92376
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Verified License
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Gray Rock Engineering Inc License info
Verified License
| License # | 1101172 |
| Status | Active |
| State | California |
| Type | Concrete |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Gray Rock Engineering Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
97
BuildZoom Score
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $25,000 |
Insured
| Workers Comp Provider | Mid Century Insurance Company |