Updated: May 20, 2026
Location
Address
8992 SUNFLOWER STREET, Alta Loma, CA, 91701
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MRG Construction
MRG Construction, 8992 Sunflower St, Alta Loma, CA (Owned by: Charles Dean Konoloff) holds a General Building license and 2 other licenses 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 MRG Construction, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
MRG Construction Services
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MRG Construction Contact Information
Phone Number: (530) 305-1281
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Address: 8992 SUNFLOWER STREET, Alta Loma, CA 91701
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Verified License
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MRG Construction License info
Verified License
| License # | 1002412 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for MRG Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 985176 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- 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 MRG Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 769409 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- 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 MRG Construction 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 | Western Surety Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Clear Spring Property & Casualty Company |
MRG Construction Employees
CK
Charles Dean Konoloff
Owner
MG
Michael Ray Gilstrap
Owner
MG
Michael Robert Gaston
Owner
MM
Michael Wayne Manning
Rme
RB
Rolando Selga Borromeo
Rme