Updated: Apr 16, 2026
Location and Projects
Address
4990 VINE HILL ROAD, Sebastopol, CA, 95472
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Engineered Mechanical Systems
Engineered Mechanical Systems, 4990 Vine Hill Rd, Sebastopol, CA (Owned by: Robert Glen Dehoney) holds a Refrigeration license and 1 other license according to the California license board.
Their BuildZoom score of 92 ranks in the top 32% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Engineered Mechanical Systems, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Engineered Mechanical Systems Contact Information
Phone Number: (707) 431-2426
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Address: 4990 VINE HILL ROAD, Sebastopol, CA 95472
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Building Permits by Engineered Mechanical Systems
This is a sample of this contractor's permits. Click here to access their complete permit history.
Fire sprinklers/sew & vac (i)
Valuation:
$900
Permit #:
P93-5110
Status:
FINAL
Fee:
$115
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Engineered Mechanical Systems License info
Verified License
| License # | 876152 |
| Status | Active |
| State | California |
| Type | Refrigeration |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Engineered Mechanical Systems at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 689536 |
| Status | Inactive |
| State | California |
| Type | Refrigeration |
| 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 Engineered Mechanical Systems at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
92
BuildZoom Score
Bonded
| Bonded Agent | Western Surety Company |
| Bond Value | $15,000 |
Engineered Mechanical Systems Employees
GD
Glenda Dee Dahl
Officer
MD
Michelyn Miner Dehoney
Officer
RD
Robert Glen Dehoney
Owner