Updated: May 31, 2026
Location and Projects
Address
4805 walther avenue, Baltimore, MD, 21214
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Mark Anthony Schaffer HVAC/Mechanical Contractor
Mark Anthony Schaffer, 4805 Walther Ave, Baltimore, MD holds a Heating, Ventilation, Air Conditioning And Refrigeration license and 2 other licenses according to the Maryland license board.
Their BuildZoom score of 97 ranks in the top 18% of 58,058 Maryland licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Mark Anthony Schaffer, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Mark Anthony Schaffer Contact Information
Address: 4805 walther avenue, Baltimore, MD 21214
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Mark Anthony Schaffer Baltimore
Quality
97
82nd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Mark Anthony Schaffer has a BuildZoom score of 97, which places them above 82% of 58,058 contractors in Maryland.
Activity
|
2 projects
|
2025 |
|
1 project
|
2024 |
Our building permit records indicate that Mark Anthony Schaffer has worked on at least
3.0 projects over the past 2 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
|
$50k-$100k |
|
2 projects
|
$1mil+ |
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 Mark Anthony Schaffer
This is a sample of this contractor's permits. Click here to access their complete permit history.
Addition 4 046 gsf of meeting and classroom space to the existing 24 000 gsf damascus road community church (drcc) phase 1 building.<div>approved site plan #: sp276026</div>
Valuation:
$2,179,600
Permit #:
495083
Status:
issued
Fee:
$2,066
Permit Type:
Nonresbldg
Building Type:
N/A
Final inspection only. replace expired building. permit #264984 to complete 2nd level of detached garage originally built of via building. permit #264973. 2nd level to be used as accessory dwelling unit via board of appeals case b-19-29 hansen #19678 revised 11.30.22 adding a 2nd bathroom to 2nd level*11/1/24 revision - addition two (2) stop residential elevator
Valuation:
$59,605
Permit #:
479897
Status:
complete
Fee:
$642
Permit Type:
Resbldg
Building Type:
N/A
New complete building - phase 1 - approximately 20 242 sft church worship building containing a sanctuary and sunday school classrooms. with said classroom areas to be cold dark shell in this initial phase 1. related sp# 273661<div>*5/14/25 revision to remove schaefer construction management off the permit. (emails in attachments) scw</div><div>6/6/2025. tel conv with robert bongiorno... see more
Valuation:
$4,924,335
Permit #:
487488
Status:
issued
Fee:
$548
Permit Type:
Nonresbldg
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Mark Anthony Schaffer License info
Verified License
| License # | 10963 |
| Status | Active |
| State | Maryland |
| Type | Heating, Ventilation, Air Conditioning And Refrigeration |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Mark Anthony Schaffer 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 # | 101353 |
| Status | Active |
| State | Maryland |
| Type | Heating, Ventilation, Air Conditioning And Refrigeration |
| Class | Heating, Ventilation, Air Conditioning and Refrigeration |
- When BuildZoom last verified this license, it had an expiration date of December, 2018. Check the current license status of Mark Anthony Schaffer with 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 # | 65628 |
| Status | Active |
| State | Maryland |
- When BuildZoom last verified this license, it had an expiration date of September, 2014. Check the current license status of Mark Anthony Schaffer with the Maryland Department of Labor, Licensing & Regulation
This is a sample of licensing data; click here to access a complete history.
97
BuildZoom Score
Mark Anthony Schaffer Employees
MS
Mark Anthony Schaffer
Owner