Updated: May 27, 2026
Location and Projects
Address
10420 HAMBURG ROAD, Frederick, MD, 21702
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Stephen A Ahern HVAC/Mechanical Contractor
Stephen A Ahern, 10420 Hamburg Rd, Frederick, MD holds a Heating, Ventilation, Air Conditioning And Refrigeration license and 1 other license according to the Maryland license board.
Their BuildZoom score of 91 ranks in the top 37% of 58,058 Maryland licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Stephen A Ahern, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Stephen A Ahern Contact Information
Address: 10420 HAMBURG ROAD, Frederick, MD 21702
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Interior renovations to install a 3 zone ductless minisplit system. clark douglas w. sr
Valuation:
N/A
Permit #:
2021-04916
Status:
complete
Fee:
$120
Permit Type:
N/A
Building Type:
N/A
Laundry room in mudrm (loft above garage for storage-20x24
Valuation:
N/A
Permit #:
B9003253
Status:
APPR
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Sewage pump for rough-in basement facilities
Valuation:
N/A
Permit #:
P9002123
Status:
APPR
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
See permit # 90-3253a for plot plans
Valuation:
N/A
Permit #:
B9003805
Status:
VOID
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
See plot plans with dwelling
Valuation:
N/A
Permit #:
B9003254
Status:
APPR
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Cut-in date: 1/1/1900
Valuation:
N/A
Permit #:
E8700679
Status:
APPR
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Stephen A Ahern License info
Verified License
| License # | 7194 |
| Status | Active |
| State | Maryland |
| Type | Heating, Ventilation, Air Conditioning And Refrigeration |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Stephen A Ahern at the Maryland Department of Labor, Licensing & Regulation.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 7194 |
| Status | Inactive |
| State | Maryland |
| Type | Heating, Ventilation, Air Conditioning And Refrigeration |
- According to the Maryland Department of Labor, Licensing & Regulation, 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 Stephen A Ahern at the Maryland Department of Labor, Licensing & Regulation.
This is a sample of licensing data; click here to access a complete history.
91
BuildZoom Score
Stephen A Ahern Employees
SA
Stephen A Ahern
Owner