Updated: May 15, 2026
Location and Projects
Address
11 E GWYNN MILLS COURT, UNIT E, Owings Mills, MD, 21117
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the Guardian Corporation Construction
the Guardian Corporation, 11 E Gwynn Mills Ct, Owings Mills, MD (Owned by: Joel Anderson) holds a Renovation license and 5 other licenses according to the Environmental Protection Agency license board.
Their BuildZoom score of 92 ranks in the top 32% of 58,058 Maryland licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring the Guardian Corporation, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
the Guardian Corporation Services
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the Guardian Corporation Contact Information
Phone Number: (410) 265-8888
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Address: 11 E GWYNN MILLS COURT, UNIT E, Owings Mills, MD 21117
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the Guardian Corporation Owings Mills
Quality
92
68th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
the Guardian Corporation has a BuildZoom score of 92, which places them above 68% of 58,058 contractors in Maryland.
Activity
|
1 project
|
2023 |
Our building permit records indicate that the Guardian Corporation has worked on at least
1.0 project over the past 3 years.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Pricing
|
1 project
|
$5k-$20k |
Pro tip:
For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.
Building Permits by the Guardian Corporation
This is a sample of this contractor's permits. Click here to access their complete permit history.
Remove existing and install approx 88 lf of drain tile
Valuation:
$6,600
Permit #:
B02422155
Status:
filed
Fee:
$110
Permit Type:
N/A
Building Type:
N/A
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the Guardian Corporation Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
the Guardian Corporation License info
Verified License
| License # | NAT-94908-3 |
| Status | Active |
| Nation | Environmental Protection Agency |
| Type | Renovation |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for the Guardian Corporation at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 90984 |
| Status | Active |
| State | Maryland |
| Type | Home Improvement |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for the Guardian Corporation 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 # | 35968 |
| Status | Active |
| State | Pennsylvania |
| Type | Contractor Corp Part |
- When BuildZoom last verified this license, it had an expiration date of November, 2015. Check the current license status of the Guardian Corporation with the Pennsylvania Office of the Attorney General
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 90984 |
| Status | Active |
| State | Pennsylvania |
| Type | Contractor |
- When BuildZoom last verified this license, it had an expiration date of November, 2015. Check the current license status of the Guardian Corporation with the Pennsylvania Office of the Attorney General
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 35968 |
| Status | Active |
| State | Maryland |
| Type | Contractor (Corppart) Home Improvement |
- When BuildZoom last verified this license, it had an expiration date of November, 2015. Check the current license status of the Guardian Corporation with the Maryland Department of Labor, Licensing & Regulation
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | NAT-94908-2 |
| Status | Inactive |
| Nation | Environmental Protection Agency |
| Type | Renovation |
- According to the United States Environmental Protection Agency, 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 the Guardian Corporation at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
92
BuildZoom Score
the Guardian Corporation Employees
JA
Joel Anderson
Owner
TC
The Guardian Corporation
Owner