Location and Projects
Granko Construction Concrete Contractor
Granko Construction Inc, 367 W Napa St, Sonoma, CA (Employees: Anthony Joseph Granko, Robin Melissa Granko, and Ryan Michael Granko) holds a Low Voltage Systems, Awnings license and 2 other licenses according to the California license board.
Their BuildZoom score of 98 ranks in the top 16% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Granko Construction Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Granko Construction Inc Services
Granko Construction Inc Contact Information
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Granko Construction Inc Sonoma
Quality
Activity
|
2 projects
|
2025 |
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Pricing
|
1 project
|
$20k-$50k |
Building Permits by Granko Construction Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
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Granko Construction Inc License info
Verified License
| License # | 1051441 |
| Status | Active |
| State | California |
| Type | Low Voltage Systems, Awnings |
| Business Type | Corporation |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Granko Construction Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| Status | Active |
| City | Vallejo |
| Type | Contractor |
| Business Type | Corporation |
- When BuildZoom last verified this license, it had an expiration date of September, 2015. Check the current license status of Granko Construction Inc with the The City of Vallejo, CA
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 965916 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Granko Construction Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
98
BuildZoom Score
Bonded
| Bonded Agent | Wesco Insurance Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Employers Preferred Insurance Company |