Updated: May 19, 2026
Location and Projects
Address
Linden, MI, 48451
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Platinum Mechanical Inc
Platinum Mechanical Inc, Linden, MI (Owned by: Robert St John) holds a Boiler Installer license and 15 other licenses according to the Michigan license board.
Their BuildZoom score of 95 ranks in the top 22% of 167,179 Michigan licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Platinum Mechanical Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Platinum Mechanical Inc Contact Information
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Building Permits by Platinum Mechanical Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Air handler (1 500 to 10 000 cfm) breeching & combustion to appliance gas burning equipment (under 400 000 btu's) unit heater (under 200 000 btu's) at the water filtration plant
Valuation:
N/A
Permit #:
PM-25-044
Status:
issued
Fee:
N/A
Permit Type:
Mechanical
Building Type:
N/A
Install gas piping to (2) rtu's (owner supplied) and install has piping to gas fired kitchen equipment
Valuation:
N/A
Permit #:
PM22-0570
Status:
final
Fee:
$230
Permit Type:
N/A
Building Type:
N/A
Installing 3 fixtures(ec shower and lav) upstairs and a kitchen sink
Valuation:
N/A
Permit #:
PP2021-0762
Status:
issued
Fee:
$135
Permit Type:
Add/alter/repair
Building Type:
N/A
New plumbing for proposed genesee county juvenlie justice center as per plans on file with the building department
Valuation:
N/A
Permit #:
PP20-0147
Status:
issued
Fee:
$1,952
Permit Type:
New construction
Building Type:
N/A
Install generator per design review board approval. must be screened from view per twp ordinance
Valuation:
N/A
Permit #:
PM20-0307
Status:
applied
Fee:
$115
Permit Type:
Generator
Building Type:
N/A
Wwtp headworks improvements 3 air handlers
Valuation:
N/A
Permit #:
PM-20-241
Status:
final
Fee:
$220
Permit Type:
N/A
Building Type:
N/A
Gas/oil burn fuel gas piping hydronic piping air handler under10, 000 over 10, 000 cfm unit heaters chiller-refrigeration addition inspecs final cert fee cont reg
Valuation:
N/A
Permit #:
PM21-0180
Status:
issued
Fee:
$1,310
Permit Type:
New construction
Building Type:
N/A
Fx water heater stacks water sr sewers 1 1/2 wtr dist. pipe reduced press zone black-flow medical gas system
Valuation:
N/A
Permit #:
P29143010
Status:
final
Fee:
$413
Permit Type:
New
Building Type:
N/A
Waste water treatment building 2003 mbc
Valuation:
N/A
Permit #:
PMC11875
Status:
final
Fee:
$115
Permit Type:
Mechanical
Building Type:
N/A
Fx sewage ej water svc water dist pipe addition insp final
Valuation:
N/A
Permit #:
P27142737
Status:
final
Fee:
$175
Permit Type:
Construction
Building Type:
N/A
Alterations:fixtures, wtr htr pipings
Valuation:
N/A
Permit #:
PLUM09-958-00
Status:
final
Fee:
$210
Permit Type:
N/A
Building Type:
N/A
Fx wtr htr stacks addition insp final
Valuation:
N/A
Permit #:
P29142965
Status:
final
Fee:
$163
Permit Type:
Addition/alteration
Building Type:
N/A
Gas piping piping final
Valuation:
N/A
Permit #:
P29135041
Status:
final
Fee:
$105
Permit Type:
New
Building Type:
N/A
Duct air handlers final
Valuation:
N/A
Permit #:
P28134395
Status:
final
Fee:
$120
Permit Type:
Addition/alteration
Building Type:
N/A
Gas piping final
Valuation:
N/A
Permit #:
P24132826
Status:
final
Fee:
$65
Permit Type:
Addition/alteration
Building Type:
N/A
Piping final
Valuation:
N/A
Permit #:
P29134877
Status:
final
Fee:
$100
Permit Type:
Addition/alteration
Building Type:
N/A
Plumbing to include floor drain install cleanout install sanitary event piping and relocation of water heater & eyewash for wellhouse improvements to include modification to existing building to accommodate additional piping controls and heating 19 x 22 addition
Valuation:
N/A
Permit #:
PP25-0106
Status:
issued
Fee:
$168
Permit Type:
Addition
Building Type:
N/A
Mechanical to include furnace replacement gas piping to new furnace (2) exhaust fan for wellhouse improvements to include modification to existing building to accommodate additional piping controls and heating 19 x 22 addition
Valuation:
N/A
Permit #:
PM25-0343
Status:
issued
Fee:
$195
Permit Type:
Addition
Building Type:
N/A
Installing owner furnished 3-compartment. installing floor sink dishwasher and lav/toilet ** contractor called and canceled the permit **
Valuation:
N/A
Permit #:
PP22-0304
Status:
canceled
Fee:
$215
Permit Type:
N/A
Building Type:
N/A
Addition/alteration
Valuation:
N/A
Permit #:
PM16-0692
Status:
canceled
Fee:
$285
Permit Type:
1011-nonalt/add/r...
Building Type:
N/A
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Platinum Mechanical Inc Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Platinum Mechanical Inc License info
Verified License
| License # | 315228 |
| Status | Active |
| State | Michigan |
| Type | Boiler Installer |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Platinum Mechanical Inc at the Michigan Department of Licensing & Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 7114199 |
| Status | Active |
| State | Michigan |
| Type | Mechanical Contractor |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Platinum Mechanical Inc at the Michigan Department of Licensing & Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 7111247 |
| Status | Active |
| State | Michigan |
| Type | Mechanical Contractor |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Platinum Mechanical Inc at the Michigan Department of Licensing & Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 8002685 |
| Status | Active |
| State | Michigan |
| Type | Plumbing Contractor |
- When BuildZoom last verified this license, it had an expiration date of April, 2025. Check the current license status of Platinum Mechanical Inc with the Michigan Department of Licensing & Regulatory Affairs
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 7111247 |
| Status | Active |
| State | Michigan |
| Type | Mechanical Contractor |
- When BuildZoom last verified this license, it had an expiration date of August, 2025. Check the current license status of Platinum Mechanical Inc with the Michigan Department of Licensing & Regulatory Affairs
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 7114199 |
| Status | Active |
| State | Michigan |
| Type | Mechanical Contractor |
- When BuildZoom last verified this license, it had an expiration date of August, 2025. Check the current license status of Platinum Mechanical Inc with the Michigan Department of Licensing & Regulatory Affairs
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 315228 |
| Status | Active |
| State | Michigan |
| Type | Boiler Installer |
- When BuildZoom last verified this license, it had an expiration date of December, 2025. Check the current license status of Platinum Mechanical Inc with the Michigan Department of Licensing & Regulatory Affairs
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 8002685 |
| Status | Inactive |
| State | Michigan |
| Type | Plumbing Contractor |
- According to the Michigan Department of Licensing & Regulatory Affairs, 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 Platinum Mechanical Inc at the Michigan Department of Licensing & Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 7113976 |
| Status | Inactive |
| State | Michigan |
| Type | Mechanical Contractor |
- According to the Michigan Department of Licensing & Regulatory Affairs, 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 Platinum Mechanical Inc at the Michigan Department of Licensing & Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 316065 |
| Status | Inactive |
| State | Michigan |
| Type | Boiler Installer |
- According to the Michigan Department of Licensing & Regulatory Affairs, 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 Platinum Mechanical Inc at the Michigan Department of Licensing & Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 315740 |
| Status | Inactive |
| State | Michigan |
| Type | Boiler Installer |
- According to the Michigan Department of Licensing & Regulatory Affairs, 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 Platinum Mechanical Inc at the Michigan Department of Licensing & Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 315761 |
| Status | Inactive |
| State | Michigan |
| Type | Boiler Installer |
- According to the Michigan Department of Licensing & Regulatory Affairs, 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 Platinum Mechanical Inc at the Michigan Department of Licensing & Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 7113976 |
| Status | Inactive |
| State | Michigan |
| Type | Mechanical Contractor |
- According to the Michigan Department of Licensing & Regulatory Affairs, 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 Platinum Mechanical Inc at the Michigan Department of Licensing & Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 315740 |
| Status | Inactive |
| State | Michigan |
| Type | Boiler Installer |
- According to the Michigan Department of Licensing & Regulatory Affairs, 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 Platinum Mechanical Inc at the Michigan Department of Licensing & Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 316065 |
| Status | Inactive |
| State | Michigan |
| Type | Boiler Installer |
- According to the Michigan Department of Licensing & Regulatory Affairs, 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 Platinum Mechanical Inc at the Michigan Department of Licensing & Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 315761 |
| Status | Inactive |
| State | Michigan |
| Type | Boiler Installer |
- According to the Michigan Department of Licensing & Regulatory Affairs, 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 Platinum Mechanical Inc at the Michigan Department of Licensing & Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
95
BuildZoom Score
15
Permits
- Building permit records show that Platinum Mechanical Inc has worked on 15 permitted projects.
Platinum Mechanical Inc Employees
DG
Daniel Gaudet
Owner
DG
Daniel Gaudet
GP
Gregory Pfeiffer
Owner
GP
Gregory Pfeiffer
HH
Harold Harrington
Owner
HH
Harold T Harrington
KC
Kenneth Coon
Owner
KC
Kenneth L Coon
RH
Robert Hicks
Owner
RJ
Robert Saint John
Owner
RJ
Robert St John
Owner
RH
Robert Edwin Hicks
RJ
Robert M Saint John
RJ
Robert M St John
TH
Thomas Hubbard
Owner
TH
Thomas J Hubbard