Updated: Jul 06, 2026
Location and Projects
Address
Baltimore, MD, 21227
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John Linkus HVAC/Mechanical Contractor
John Linkus, Baltimore, MD holds a Heating, Ventilation, Air Conditioning And Refrigeration license and 3 other licenses 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 John Linkus, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
John Linkus Contact Information
Phone Number: (410) 365-1155
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Duct work only for bathroom exhaust and dryer vent - alteration to basement replacing and adding insulation and dry wall. moving washer, dryer and heat to new area
Valuation:
$49,000
Permit #:
MR-003909-2017
Status:
issued
Fee:
N/A
Permit Type:
Alteration
Building Type:
N/A
Duct work only extend (2)existing supply ducts in exact location to new addition. move air conditioning condensing unit 4ft
Valuation:
N/A
Permit #:
M02165013
Status:
complete
Fee:
$80
Permit Type:
N/A
Building Type:
N/A
Single family dwelling addition install ductless mini split remove & relocate ducts addition 2 supply relocate return energy code prescriptive method
Valuation:
N/A
Permit #:
M16001238
Status:
complete
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Install (1) 26x 8'9x 7'11 walk in display cooler with 1-4 hp condensing unit. 2-vap coils
Valuation:
$30,000
Permit #:
MECH-6354-2014
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
32 x 10 x 8 walk in display cooler with equipment (1) 6hp condensing unit (3) fan evaporators (8) glass doors & (1) pass thru for tenant fitout and zoning certification for catering by hoffman's a catering and events center interior renovations to include installation of new kitchen equipment ada bathroom renovations adding exit door cosmetic upgrades electrical and plumbing as requir... see more
Valuation:
N/A
Permit #:
2013-05436
Status:
complete
Fee:
$150
Permit Type:
N/A
Building Type:
N/A
Mechanical for white box installation of a 29 x 7 x 8 h display cooler l shaped. installtion of refrigeration
Valuation:
$11,000
Permit #:
M02159204
Status:
complete
Fee:
$100
Permit Type:
N/A
Building Type:
N/A
Heat pump for alteration
Valuation:
$35,000
Permit #:
MR-008337-2016
Status:
issued
Fee:
N/A
Permit Type:
Alteration
Building Type:
N/A
Duct work only addition four supply lines to addition from existing du ct extend dryer vent and bathroom exhaust
Valuation:
N/A
Permit #:
M02149994
Status:
complete
Fee:
$80
Permit Type:
N/A
Building Type:
N/A
Duct work only install supply lines to new addition from existing system
Valuation:
N/A
Permit #:
M02147780
Status:
complete
Fee:
$80
Permit Type:
N/A
Building Type:
N/A
Quiznos - 2 rtus 1-3 ton 1-4 ton w/dctwk bathroom exh. fan hood vent
Valuation:
$8,000
Permit #:
M02099971
Status:
complete
Fee:
$90
Permit Type:
N/A
Building Type:
N/A
Rep furnace & air conditioning rep 1-70, 000btu gas fired furance & 1-2.5 ton air conditioning *rev 3/17/11 rep damaged duct(slh)
Valuation:
N/A
Permit #:
M02135221
Status:
complete
Fee:
$80
Permit Type:
N/A
Building Type:
N/A
Addition heating and air conditioning install one (1) 80, 000 btu gas fired furnace one (1) 3 ton air conditioning with complete duct system
Valuation:
N/A
Permit #:
M02114376
Status:
complete
Fee:
$95
Permit Type:
N/A
Building Type:
N/A
Addition heating and air conditioning install 2 75, 000 btu furnaces with air conditioning 2 1/2 ton a nd 2 ton complete duct system for both
Valuation:
N/A
Permit #:
M02109419
Status:
complete
Fee:
$95
Permit Type:
N/A
Building Type:
N/A
New system for 2nd floor addition and new system for 1st floor--ductwork and heat is hot water baseboard new boiler
Valuation:
N/A
Permit #:
M02094842
Status:
complete
Fee:
$95
Permit Type:
N/A
Building Type:
N/A
Addition heating and air conditioning install 2 zones totaling 48000 btu's and complete duct system for both
Valuation:
N/A
Permit #:
M02118765
Status:
complete
Fee:
$95
Permit Type:
N/A
Building Type:
N/A
Duct work only install to (2) 6 supply ducts to sun room from ex isting main supply line in living room
Valuation:
N/A
Permit #:
M02107154
Status:
canceled
Fee:
$80
Permit Type:
N/A
Building Type:
N/A
Addition heating and air conditioning install 4 ton htpmp and complete duct system 48, 0 00 btu 1 zone
Valuation:
N/A
Permit #:
M02122808
Status:
complete
Fee:
$95
Permit Type:
N/A
Building Type:
N/A
Project number: b00152352 single family dwelling addition install hvac system install hvac system
Valuation:
N/A
Permit #:
M00009873
Status:
complete
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Total new install type 2 commercial hood
Valuation:
N/A
Permit #:
MEC12-0075
Status:
final
Fee:
$110
Permit Type:
Existing building...
Building Type:
N/A
Residential hvac addition alteration permit
2006-02-08
Project number: b00156042 single family dwelling sfd- install hvacr install hvacr system
Valuation:
N/A
Permit #:
M00010600
Status:
complete
Fee:
$138
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
John Linkus License info
Verified License
| License # | 9388 |
| 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 John Linkus at the Maryland Department of Labor, Licensing & Regulation.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CON-1377 |
| Status | Inactive |
| City | Annapolis |
| Type | Mech Cont |
- According to the The City of Annapolis, MD, 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 John Linkus at the The City of Annapolis, MD.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 2011602697 |
| Status | Inactive |
| State | New Castle County |
| Type | Contractor Non Resident |
- According to the State of Delaware Department of Finance: Division of Revenue, 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 John Linkus at the State of Delaware Department of Finance: Division of Revenue.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | HM-0000866 |
| Status | Inactive |
| State | Delaware |
| Type | Hvacr |
- According to the State of Delaware, 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 John Linkus at the State of Delaware.
This is a sample of licensing data; click here to access a complete history.
91
BuildZoom Score
34
Permits
- Building permit records show that John Linkus has worked on 34 permitted projects.
John Linkus Employees
JL
John Linkus
Owner