Updated: May 15, 2026
Location and Projects
Address
5501 MARLIN STREET, Rockville, MD, 20853
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Hammer Contractors Construction
Hammer Contractors Inc, 5501 Marlin St, Rockville, MD (Owned by: John S Rodriguez) holds a Home Improvement 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 Hammer Contractors Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Hammer Contractors Inc Services
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Hammer Contractors Inc Contact Information
Address: 5501 MARLIN STREET, Rockville, MD 20853
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Building Permits by Hammer Contractors Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Residential interior alteration single family dwelling permit
2014-10-02
Single family dwelling finish basement for office and living room area and egress window 600 sq. ft
Valuation:
N/A
Permit #:
B14003547
Status:
complete
Fee:
$135
Permit Type:
N/A
Building Type:
N/A
Residential interior alteration single family dwelling permit
2014-08-13
Single family dwelling finish basement for living area play room storage 1fb 650 sq. ft
Valuation:
N/A
Permit #:
B14002896
Status:
complete
Fee:
$135
Permit Type:
N/A
Building Type:
N/A
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Hammer Contractors Inc Reviews
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Verified License
BuildZoom confirmed this contractor's license
Hammer Contractors Inc License info
Verified License
| License # | 105944 |
| Status | Active |
| State | Maryland |
| Type | Home Improvement |
| Business Type | Corporation |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Hammer Contractors Inc at the Maryland Department of Labor, Licensing & Regulation.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 87510 |
| Status | Active |
| State | Pennsylvania |
| Type | Contractor |
| Business Type | Corporation |
- When BuildZoom last verified this license, it had an expiration date of February, 2015. Check the current license status of Hammer Contractors Inc with the Pennsylvania Office of the Attorney General
This is a sample of licensing data; click here to access a complete history.
91
BuildZoom Score
Hammer Contractors Inc Employees
GB
Gregorio Buitrago
JR
John S Rodriguez
Owner