Updated: May 15, 2026
Location and Projects
Address
R&J BOSTWICK CO INC6631 QUAD AVENUE, Baltimore, MD, 21237
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Service Master of Baltimore Construction
Service Master of Baltimore, R&j Bostwick Co Inc6631 Quad Ave, Baltimore, MD (Owned by: R&J Bostwick Co Inc) holds a Home Improvement license and 3 other licenses according to the Maryland license board.
Their BuildZoom score of 99 ranks in the top 15% of 58,058 Maryland licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Service Master of Baltimore, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Service Master of Baltimore Services
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Service Master of Baltimore Contact Information
Phone Number: (410) 780-1700
Address: R&J BOSTWICK CO INC6631 QUAD AVENUE, Baltimore, MD 21237
Building Permits by Service Master of Baltimore
This is a sample of this contractor's permits. Click here to access their complete permit history.
Residential interior alteration single family dwelling permit
2021-12-29
Single family dwelling fire damage repair to original condition approximately 230 sq ft (see cb210610)
Valuation:
N/A
Permit #:
B21004971
Status:
complete
Fee:
$135
Permit Type:
N/A
Building Type:
N/A
57 acre select timber harvest
Valuation:
N/A
Permit #:
DOI 2017-11
Status:
issued
Fee:
$25
Permit Type:
Forestry doi
Building Type:
N/A
57 acre select timber harvest
Valuation:
N/A
Permit #:
DOI 2017-11
Status:
filed
Fee:
$25
Permit Type:
Forestry doi
Building Type:
N/A
Service Master of Baltimore Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Service Master of Baltimore License info
Verified License
| License # | 101365 |
| Status | Active |
| State | Maryland |
| Type | Home Improvement |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Service Master of Baltimore 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 # | 130277 |
| Status | Active |
| State | Maryland |
| Type | Contractor (Corppart) Home Improvement |
- When BuildZoom last verified this license, it had an expiration date of September, 2016. Check the current license status of Service Master of Baltimore 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-54656-3 |
| 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.
Check this license's status for Service Master of Baltimore at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | NAT-54656-2 |
| 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.
Check this license's status for Service Master of Baltimore at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
99
BuildZoom Score
Service Master of Baltimore Employees
RI
R&J Bostwick Co Inc
Owner