Updated: Jun 13, 2026
Location
Address
1140 CENTRE DR #S, Walnut, CA, 91789
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Kalstone Low Voltage Contractor
Kalstone Corp, 1140 Centre Dr S, Walnut, CA (Employee: Jerry Jianren Chen) holds a Low Voltage Systems license according to the California license board.
Their BuildZoom score of 93 ranks in the top 27% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Kalstone Corp, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Kalstone Corp Services
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Kalstone Corp Contact Information
Phone Number: (626) 336-6828
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Address: 1140 CENTRE DR #S, Walnut, CA 91789
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Kalstone Corp License info
Verified License
| License # | 1072230 |
| Status | Active |
| State | California |
| Type | Low Voltage Systems |
| Business Type | Corporation |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Kalstone Corp at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
93
BuildZoom Score
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
Kalstone Corp Employees
JC
Jerry Jianren Chen
Rmo / Ceo / Pres