Updated: May 20, 2026
Location
Address
P O BOX 4095, Vallejo, CA, 94590
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Checkmate Mechanical LLC
Checkmate Mechanical LLC, Vallejo, Po Box 4095, Vallejo, CA (Employees: Richard Joseph Rapacon and Scott Thomas Nelson) holds a Boiler, Hot Water Heating And Steam Fitting license according to the California license board.
Their BuildZoom score of 95 ranks in the top 22% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Checkmate Mechanical LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Checkmate Mechanical LLC Contact Information
Phone Number: (707) 656-3683
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Address: P O BOX 4095, Vallejo, CA 94590
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Verified License
BuildZoom confirmed this contractor's license
Checkmate Mechanical LLC License info
Verified License
| License # | 1146400 |
| Status | Active |
| State | California |
| Type | Boiler, Hot Water Heating And Steam Fitting |
| Date Issued | 11-17-2025 |
| Business Type | Ltd Liability |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Checkmate Mechanical LLC at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
95
BuildZoom Score
Insured
| Insurer | Kinsale Insurance Company |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | Business Alliance Insurance Company |
| Bond Value | $25,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
Checkmate Mechanical LLC Employees
RR
Richard Joseph Rapacon
Member
SN
Scott Thomas Nelson
Rmm