Updated: Jun 01, 2026
Location and Projects
Address
Arnold, MD, 21012
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Frederick Allen Wolf Plumber
Frederick Allen Wolf, Arnold, MD holds a Heating, Ventilation, Air Conditioning And Refrigeration license and 1 other license according to the Maryland license board.
Their BuildZoom score of 95 ranks in the top 22% of 58,058 Maryland licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Frederick Allen Wolf, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
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Frederick Allen Wolf Contact Information
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Install approximately 60 of 3 domestic water pipe and one 3 rpz backflow preventor. install approximately 60 of 2 domestic water piping and one 2 rpz backflow preventor. install approximately 40 of 1-1/2 domestic water piping and one 1-1/2 rpz backflow preventer
Valuation:
N/A
Permit #:
BCCM-25-003568
Status:
triage
Fee:
N/A
Permit Type:
Interior trades only
Building Type:
N/A
Replacement of the campus water booster pump system associated piping and controls vfd’s and heater at the pump station vault located along pond road
Valuation:
N/A
Permit #:
B11003281
Status:
complete
Fee:
$220
Permit Type:
N/A
Building Type:
N/A
Commercial plumbing addition alteration permit
2016-03-28
Howard high school replace water heater with new two (2) new water heaters
Valuation:
N/A
Permit #:
P16001341
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building 3 cooling tower renewal. install domestic water piping/backflow preventer/floor drain 1-floor drain/1-condensate drain/1-sill cocks/1-watts series 909
Valuation:
N/A
Permit #:
P12000472
Status:
complete
Fee:
$171
Permit Type:
N/A
Building Type:
N/A
Oakland mills high school install 2.4 gas line for new generator
Valuation:
N/A
Permit #:
P14000060
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Commercial plumbing addition alteration permit
2013-10-02
Ste. 301-b dr. lawrence install plumbing 1 kitchen sink
Valuation:
N/A
Permit #:
P13004405
Status:
complete
Fee:
$105
Permit Type:
N/A
Building Type:
N/A
Martek bioscience install plumbing fixtures 2-lavs/2-water closets/1-water heater amend permit #p12000237
Valuation:
N/A
Permit #:
P12000835
Status:
complete
Fee:
$177
Permit Type:
N/A
Building Type:
N/A
Jhu/apl - replacement of campus water booster pump system install booster pump post indicator valve
Valuation:
N/A
Permit #:
P12000112
Status:
complete
Fee:
$160
Permit Type:
N/A
Building Type:
N/A
Martek bioscience install plumbing fixtures 1-kitchen sink/1-2 comparable sink/1-dishwasher/1-floor sink
Valuation:
N/A
Permit #:
P12000237
Status:
complete
Fee:
$122
Permit Type:
N/A
Building Type:
N/A
Martek bio science install plumbing fixtures 5-floor drains/1-sill cock/11-lab sinks/3-emergency eye wash/showers
Valuation:
N/A
Permit #:
P11001499
Status:
complete
Fee:
$210
Permit Type:
N/A
Building Type:
N/A
******* the renovation of approximately 650 sf of lab space in the basement level of krieger hall at johns hopkins university homewood campus. ******** scope of work: ----- interior alterations (equipment)------ there is a small amount of work at the first (ground) level to bring supplemental air to the basement labs as per plans as per code
Valuation:
N/A
Permit #:
COM2024-03821
Status:
complete
Fee:
$1,136
Permit Type:
N/A
Building Type:
N/A
******* the renovation of approximately 650 sf of lab space in the basement level of krieger hall at johns hopkins university homewood campus. ******** scope of work: ----- interior alterations (equipment)------ there is a small amount of work at the first (ground) level to bring supplemental air to the basement labs as per plans as per code
Valuation:
N/A
Permit #:
COM2024-03821
Status:
complete
Fee:
$1,136
Permit Type:
N/A
Building Type:
N/A
******** renovation to approx. 3160 sf on the 2nd floor of levi hall and shall include but not limited to: ********** scope of work: -------- level ii interior alterations --------- cat i demoltiion: selective demolition of walls doors casework finishes electrical lighting plumbing and hvac. new work consists of but not limited to new walls doors casework finishes lighting --------- t... see more
Valuation:
N/A
Permit #:
BCCM-25-001047
Status:
complete
Fee:
$2,234
Permit Type:
Interior alterati...
Building Type:
N/A
******** renovation to approx. 3160 sf on the 2nd floor of levi hall and shall include but not limited to: ********** scope of work: -------- level ii interior alterations --------- cat i demoltiion: selective demolition of walls doors casework finishes electrical lighting plumbing and hvac. new work consists of but not limited to new walls doors casework finishes lighting --------- t... see more
Valuation:
N/A
Permit #:
BCCM-25-001047
Status:
complete
Fee:
$2,234
Permit Type:
Interior alterati...
Building Type:
N/A
Scope of work: ------- level ii interior alterations --------- renovation of (3) existing laboratory bays located in the bloomberg research center building. the work will take place in the following areas: • area a: basement level rooms 008 009 suite 010 011 013 suite 014 015 017 and 019 • area b: first floor suite 140 and lab suite 144 • area c: fourth floor labs 442 and 444 • two ne... see more
Valuation:
N/A
Permit #:
BCCM-25-001375
Status:
complete
Fee:
$7,175
Permit Type:
Interior alterati...
Building Type:
N/A
Renovation of jhu hall
Valuation:
N/A
Permit #:
BCCM-25-004142
Status:
document received
Fee:
N/A
Permit Type:
Interior trades only
Building Type:
N/A
Renovation of jhu hall
Valuation:
N/A
Permit #:
BCCM-25-004142
Status:
document received
Fee:
N/A
Permit Type:
Interior trades only
Building Type:
N/A
Renovation of (3) existing laboratory bays located in the bloomberg research center building
Valuation:
N/A
Permit #:
BCCM-25-003750
Status:
triage
Fee:
N/A
Permit Type:
Interior alterati...
Building Type:
N/A
Renovation of (3) existing laboratory bays located in the bloomberg research center building
Valuation:
N/A
Permit #:
BCCM-25-003750
Status:
triage
Fee:
N/A
Permit Type:
Interior alterati...
Building Type:
N/A
Locating an underground leak to determine if this piping can be repaired or needs replaced scope of work: -------- trades --------- - repair to existing piping (per applicant on the phone). as per plan as per code
Valuation:
N/A
Permit #:
BCCM-25-003217
Status:
complete
Fee:
$103
Permit Type:
Exterior and inte...
Building Type:
N/A
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120
BZ Score
-
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Projects
120
BZ Score
$1.5K
Avg Project
-
Projects
120
BZ Score
$1.5K
Avg Project
-
Projects
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Verified License
BuildZoom confirmed this contractor's license
Frederick Allen Wolf License info
Verified License
| License # | 6856 |
| 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 Frederick Allen Wolf at the Maryland Department of Labor, Licensing & Regulation.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 8719 |
| Status | Active |
| State | Maryland |
| Type | Plumbers |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Frederick Allen Wolf at the Maryland Department of Labor, Licensing & Regulation.
This is a sample of licensing data; click here to access a complete history.
95
BuildZoom Score
8
Permits
- Building permit records show that Frederick Allen Wolf has worked on 8 permitted projects.
Frederick Allen Wolf Employees
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Frederick Allen Wolf
Owner