Updated: Jul 15, 2026
Location and Projects
Address
450 S. 44th Street, Boulder, CO, 80305
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Michael K. Duffy Electrician
Michael K. Duffy, 450 S 44th St, Boulder, CO (Employee: Arcs & Sparks) holds a Electrician license and 3 other licenses according to the Colorado license board.
Their BuildZoom score of 90 indicates that they are licensed or registered but we do not have additional information about them.
Their license was verified as active when we last checked. If you are thinking of hiring Michael K. Duffy, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Michael K. Duffy Contact Information
Address: 450 S. 44th Street, Boulder, CO 80305
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Residence
Valuation:
$0
Permit #:
B28492
Status:
Voided
Fee:
N/A
Permit Type:
New single family...
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Michael K. Duffy License info
Verified License
| License # | 3560 |
| Status | Active |
| State | Colorado |
| Type | Electrician |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Michael K. Duffy at the Colorado Division of Professions and Occupations.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | ME.0003560 |
| Status | Active |
| State | Colorado |
| Type | Master Electrician |
- When BuildZoom last verified this license, it had an expiration date of September, 2017. Check the current license status of Michael K. Duffy with the Colorado Division of Professions and Occupations
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 2184 |
| Status | Inactive |
| State | Colorado |
| Type | Electrical Contractor |
- According to the Colorado Division of Professions and Occupations, 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 Michael K. Duffy at the Colorado Division of Professions and Occupations.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | LIC-0002116-ELEC |
| Status | Inactive |
| City | Boulder |
| Type | Electrical |
| Class | Electrical |
- According to the Boulder Licensing 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 Michael K. Duffy at the Boulder Licensing Board.
This is a sample of licensing data; click here to access a complete history.
90
BuildZoom Score
Michael K. Duffy Employees
AS
Arcs & Sparks
MD
Michael K. Duffy