Updated: Jan 13, 2026
Location and Projects
Address
Fenton, MI, 48430
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Lamontagne, William S HVAC/Mechanical Contractor
Lamontagne, William S, Fenton, MI (Owned by: Lamontagne, William A) holds a Mechanical Contractor license and 7 other licenses according to the Michigan license board.
Their BuildZoom score of 92 ranks in the top 32% of 167,179 Michigan licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Lamontagne, William S, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Lamontagne, William S Contact Information
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Building Permits by Lamontagne, William S
This is a sample of this contractor's permits. Click here to access their complete permit history.
No card replace furnace & air conditioning
Valuation:
N/A
Permit #:
PM11-0067
Status:
final
Fee:
$105
Permit Type:
Mechanical
Building Type:
N/A
No card reconnect air conditioning and furnace
Valuation:
N/A
Permit #:
PE11-0585
Status:
final
Fee:
$43
Permit Type:
Electrical
Building Type:
N/A
Gas line only for new pre-fab fireplace in family room (gas pressure affidavit provided to applicant n. brown for completion and submittal) - see pm160174
Valuation:
N/A
Permit #:
PM160176
Status:
final
Fee:
$100
Permit Type:
Mechanical
Building Type:
N/A
No card furnace & air conditioning
Valuation:
N/A
Permit #:
PM11-0616
Status:
final
Fee:
$90
Permit Type:
Mechanical
Building Type:
N/A
Refrig remote sys 0-7.5hp; refrig remote sys over 7.5hp; heting 100, 001 - 500k (2); duct com/ind controlled area (2); exhaust commercial 0-500cfm; 1/27/2011: added gas piping commercial 250 with 2 openings
Valuation:
N/A
Permit #:
PM110030
Status:
final
Fee:
N/A
Permit Type:
Mechanical
Building Type:
N/A
Mechanical for new construction residence including 2 furnaces 2 air conditioning and 2 humidifiers see pb14-01
Valuation:
N/A
Permit #:
PM-14-0022
Status:
final
Fee:
$325
Permit Type:
N/A
Building Type:
N/A
Contr. regis; refrig remote 0-7.5 hp (1); stacks liners & b-vents (1); heating 0-100k btu (1); electrical connection (1)
Valuation:
N/A
Permit #:
PM050525
Status:
final
Fee:
N/A
Permit Type:
Mechanical
Building Type:
N/A
Water heater replacement - gas burners - 150, 001 to 400, 000 btu
Valuation:
$0
Permit #:
PM2012-0477
Status:
N/A
Fee:
N/A
Permit Type:
Mechanical
Building Type:
N/A
2 chimney 8 or less 1 dryer vent 1 exhaust (bath etc) 1 stack liner or b-vent 1 gas piping 1 backflow preventor
Valuation:
N/A
Permit #:
PM060702
Status:
final
Fee:
N/A
Permit Type:
Mechanical
Building Type:
N/A
Furnace - 100, 000 btu - luxaire - t8g100 air conditioning - 22 lbs refrigerant - 2.5 tons - rear - payne - pa10
Valuation:
N/A
Permit #:
PM2003-088021
Status:
final
Fee:
$115
Permit Type:
Mechanical
Building Type:
N/A
Refrigeration alteration; heating 0-100k btu; electrical reconnection; humidifier installed w/furnace
Valuation:
N/A
Permit #:
PM080190
Status:
final
Fee:
N/A
Permit Type:
Mechanical
Building Type:
N/A
Furnace - 100, 000 btu - luxaire - gcu air conditioning - 2.5 tons - side - luxaire - habba030
Valuation:
N/A
Permit #:
PM-85682
Status:
final
Fee:
$115
Permit Type:
Mechanical
Building Type:
N/A
Refrigeration distribution
Valuation:
$0
Permit #:
PM2013-0180
Status:
N/A
Fee:
N/A
Permit Type:
Mechanical
Building Type:
N/A
Ref alteration; heating 0-100k btu; electrical reconn; duct alteraion; stacks liners and b-vents
Valuation:
N/A
Permit #:
PM110405
Status:
final
Fee:
N/A
Permit Type:
Mechanical
Building Type:
N/A
Humidifier make-ac/luxaire btu: 60, 000 model furnace tg95060. model air conditioning tcjd20
Valuation:
N/A
Permit #:
PM14-004501
Status:
final
Fee:
$180
Permit Type:
Mechanical
Building Type:
N/A
No card rpl furnace air conditioning & humidifier
Valuation:
N/A
Permit #:
PM10-0575
Status:
final
Fee:
$105
Permit Type:
Mechanical
Building Type:
N/A
No card re- connect furnace and air conditioning
Valuation:
N/A
Permit #:
PE10-0504
Status:
final
Fee:
$43
Permit Type:
Electrical
Building Type:
N/A
No card replace furnace
Valuation:
N/A
Permit #:
PE11-0044
Status:
final
Fee:
$43
Permit Type:
Electrical
Building Type:
N/A
Refrig remote 0-7.5 hp; heating 1-100k btu. 3/15/2011: permit for liner obtained
Valuation:
N/A
Permit #:
PM100886
Status:
final
Fee:
N/A
Permit Type:
Mechanical
Building Type:
N/A
Water heater replacement
Valuation:
$0
Permit #:
PP2012-0284
Status:
N/A
Fee:
N/A
Permit Type:
plumbing
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Lamontagne, William S License info
Verified License
| License # | 7104232 |
| Status | Active |
| State | Michigan |
| Type | Mechanical Contractor |
- BuildZoom verified this license was active as of December 2025.
Verify this license's status for Lamontagne, William S 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 # | 2101119229 |
| Status | Active |
| State | Michigan |
| Type | Residential Builder Individual |
- When BuildZoom last verified this license, it had an expiration date of May, 2023. Check the current license status of Lamontagne, William S 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 # | 7104232 |
| 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 Lamontagne, William S 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 # | 2103018777 |
| Status | Inactive |
| State | Michigan |
| Type | Residential Builder M And A Individual |
- 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 Lamontagne, William S 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 # | 2103018777 |
| Status | Inactive |
| State | Michigan |
| Type | Residential Builder M And A Individual |
- 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 Lamontagne, William S 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 # | 2101119229 |
| Status | Inactive |
| State | Michigan |
| Type | Residential Builder Individual |
- 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 Lamontagne, William S 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 # | 2101119229 |
| Status | Inactive |
| State | Michigan |
| Type | Builder Individual |
- 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 Lamontagne, William S 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 # | 2103018777 |
| Status | Inactive |
| State | Michigan |
| Type | M & A Individual |
- 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 Lamontagne, William S at the Michigan Department of Licensing & Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
92
BuildZoom Score
73
Permits
- Building permit records show that Lamontagne, William S has worked on 73 permitted projects.
Lamontagne, William S Employees
LA
Lamontagne, William A
Owner
WL
William Lamontagne
Owner
WL
William Scott Lamontagne