Updated: Apr 07, 2026
Location and Projects
Address
905 BALTIMORE ROAD, Rockville, MD, 20851
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James Patrick Denion HVAC/Mechanical Contractor
James Patrick Denion, 905 Baltimore Rd, Rockville, MD holds a Heating, Ventilation, Air Conditioning And Refrigeration 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 James Patrick Denion, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
James Patrick Denion Contact Information
Address: 905 BALTIMORE ROAD, Rockville, MD 20851
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Single family dwelling addition duct work replaced 4 rooms energy code prescriptive method
Valuation:
N/A
Permit #:
M15001155
Status:
complete
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Single family dwelling install ductless mini split energy code prescriptive method
Valuation:
N/A
Permit #:
M15000854
Status:
complete
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Install 2 1/2 ton heat pump system to serve 1st floor install 1 1/2 ton heat pump to serve 2nd floor for 2713 fin sq ft two story cape cod style single family dwelling. james shifler lot 1
Valuation:
N/A
Permit #:
2013-05278
Status:
complete
Fee:
$160
Permit Type:
N/A
Building Type:
N/A
Single family dwelling install hvac system repair fire damage
Valuation:
N/A
Permit #:
M17000429
Status:
complete
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Single family dwelling install hvac system energy code prescriptive method
Valuation:
N/A
Permit #:
M17000393
Status:
complete
Fee:
$138
Permit Type:
N/A
Building Type:
N/A
New single family dwelling install hvac system energy code ua alternative
Valuation:
N/A
Permit #:
M17000917
Status:
complete
Fee:
$138
Permit Type:
N/A
Building Type:
N/A
Single family dwelling duct work only (fire damage)
Valuation:
N/A
Permit #:
M11001063
Status:
complete
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Single family dwelling install hvac system (fire damage)
Valuation:
N/A
Permit #:
M10000336
Status:
complete
Fee:
$138
Permit Type:
N/A
Building Type:
N/A
Single family dwelling addition install hvacr system
Valuation:
N/A
Permit #:
M07000953
Status:
complete
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Single family dwelling addition install hvacr system
Valuation:
N/A
Permit #:
M08000472
Status:
complete
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Single family dwelling addition install hvac system
Valuation:
N/A
Permit #:
M09000979
Status:
complete
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
B0202624
Status:
APPR
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Verified License
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James Patrick Denion License info
Verified License
| License # | 19916 |
| Status | Active |
| State | Maryland |
| Type | Heating, Ventilation, Air Conditioning And Refrigeration |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for James Patrick Denion 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
12
Permits
- Building permit records show that James Patrick Denion has worked on 12 permitted projects.