Updated: Feb 10, 2026
Location and Projects
Address
Williamsburg, MI, 49690
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Mammoth Mechanical LLC
Mammoth Mechanical LLC, Williamsburg, MI holds a Residential Builder Company license and 1 other license according to the Michigan license board.
Their BuildZoom score of 100 ranks in the top 13% of 167,179 Michigan licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Mammoth Mechanical LLC, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Mammoth Mechanical LLC Contact Information
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Building Permits by Mammoth Mechanical LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Installation of one (1) 60k furnace & 3 ton condenser to supply 1 floor and one (1) 40k furnace & 2 ton condenser to supply second floor of new house on unfinished basement. installing gas piping for fireplace only
Valuation:
$0
Permit #:
MR25-0783
Status:
issued
Fee:
$0
Permit Type:
N/A
Building Type:
N/A
Replacement installation of approximately 30 lf of gas pipe from existing to three (3) dryers. dryer exhaust and installation of 4 ton air handler & condenser with approximately 70 lf of spiral ductwork
Valuation:
$0
Permit #:
MC25-0190
Status:
issued
Fee:
$0
Permit Type:
N/A
Building Type:
N/A
Installation of mini split system. one 12k & two 7k indoor high head units paired with one 36k outdoor unit
Valuation:
N/A
Permit #:
MR25-0637
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New residential construction unfinished basement. installation of 60 000 btu furnace and condenser
Valuation:
N/A
Permit #:
MR25-0121
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Hvac residential new construction.includes one (1) 60 000 btu furnace one (1) 3 ton condenser gas piping to range furnace water heater and dryer. four bathroom fans and one dryer vent
Valuation:
N/A
Permit #:
MR24-1844
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New construction 2 story house on crawl 2- complete furnace systems (no ac) 5-4 bathroom fans 1-renwe aire erv gas pipe for 2 furnaces dryer water heater and range
Valuation:
N/A
Permit #:
MR24-0279
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installation of 1/2 bathroom exhaust fan in the basement
Valuation:
N/A
Permit #:
MR25-0427
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New residential construction home on unfinished basement. plumbing kitchen laundry & three bathrooms
Valuation:
N/A
Permit #:
PR25-1078
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Furnace replacement & new condenser
Valuation:
N/A
Permit #:
MR25-0401
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installing forced air furnace (ng) air conditioning dryer vent bathroom exhaust fan and with gas fireplace for addition. gas lines for furnace dryer & fireplace
Valuation:
N/A
Permit #:
MR25-1413
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install gas line for new inground pool
Valuation:
N/A
Permit #:
MR23-0900
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Furnace replacement with new air conditioning
Valuation:
N/A
Permit #:
MR24-1793
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Mechanical (commercial) - alteration remodel repair
2023-10-12
Remodel that includes replacing rooftop unit adding ducting bathroom fans gas piping
Valuation:
N/A
Permit #:
MC23-0152
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Relocation of existing 100k btu 2 000 cfm existing furnace. new ductwork including supply and returns. 16 s/a drop in diffusers & 3 returns. installation of one new bathroom fan
Valuation:
N/A
Permit #:
MC25-0352
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New residential construction home on unfinished basement (bathroom in basement to be finished). plumbing kitchen laundry & three bathrooms total
Valuation:
N/A
Permit #:
PR25-1226
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Tenant building out in existing commercial building. one shared bathroom with floor drain and sewage crock. water line to coffee bar. kitchen
Valuation:
N/A
Permit #:
PC25-0228
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install plumbing in new home 2nd floor bathroom 1 and 1/2 bathroom on main floor with kitchen and laundry rough of bathroom with crook in lower floor. water sewer and water heater
Valuation:
$0
Permit #:
PR25-0912
Status:
issued
Fee:
$0
Permit Type:
N/A
Building Type:
N/A
Approximately 30 lf of gas pipe for three (3) gas dryers. installation of 4 ton air handler and heat pump with auxiliary heat. includes approximately 60 lf of spiral ductwork
Valuation:
N/A
Permit #:
MR25-0781
Status:
canceled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Mechanical (residential) - alteration remodel repair
2023-12-20
Remodel existing commercial space into a residential duplex. 1 bed 1 bathroom washer/dryer in each unit. furnace feeder both units
Valuation:
N/A
Permit #:
MR23-0679
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Mammoth Mechanical LLC License info
Verified License
| License # | 262100600 |
| Status | Active |
| State | Michigan |
| Type | Residential Builder Company |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for Mammoth Mechanical LLC 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 # | 262100600 |
| Status | Active |
| State | Michigan |
| Type | Residential Builder Company |
- BuildZoom has not verified this license since October, 2024.
Verify this license's status for Mammoth Mechanical LLC at the Michigan Department of Licensing & Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
100
BuildZoom Score
17
Permits
- Building permit records show that Mammoth Mechanical LLC has worked on 17 permitted projects.