Location and Projects
Dennis John Tiernan HVAC/Mechanical Contractor
Dennis John Tiernan at 3215 MEADOW COURT, Preston, MD 21655, held a HVAC/Mechanical Contractor license (#7212) with the Maryland contractors license board with an expiration date of 04-06-2026. We last verified the license was expired on 05-23-2026.
Their BuildZoom score is 0 because we haven’t been able to verify an active license. As a result, they’re not ranked in the top 50% of 58,058 Maryland contractors.
If you’re thinking about hiring them, we recommend double-checking their license status with your local licensing authority. Alternatively, use our project planner to be easily matched to qualified, licensed professionals in your area.
Dennis John Tiernan Contact Information
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Dennis John Tiernan License info
Inactive License
| License # | 7212 |
| 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 Dennis John Tiernan at the Maryland Department of Labor, Licensing & Regulation.
This is a sample of licensing data; click here to access a complete history.
ALERT*
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- *No active license on file. If you are Dennis John Tiernan, click “This is My Business” to update your information.