Updated: Feb 17, 2026
Location and Projects
Address
Grand Rapids, MI, 49512
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Mahlon Mechanical Service
Mahlon Mechanical Service, Grand Raoids, MI (Owned by: Mahlon Fredrickson) holds a Plumbing Contractor license and 3 other licenses 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 Mahlon Mechanical Service, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Mahlon Mechanical Service Contact Information
Phone Number: (616) 821-2899
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Building Permits by Mahlon Mechanical Service
This is a sample of this contractor's permits. Click here to access their complete permit history.
1. installation of four (4) natural gas unit heaters to be 250, 000 btu 2. four (4) unit heater vents routed from unit heater to rear sidewall of the building 3. gas piping from individual gas meters to each unit heater
Valuation:
N/A
Permit #:
PM240113
Status:
final
Fee:
$320
Permit Type:
Mechanical
Building Type:
N/A
This is for ortho lazer that has space located in the lower level of the building. the site is along the west side of the unit and starts from the north end. we are relocating supply air diffusers and adding a few office return transfer grilles
Valuation:
N/A
Permit #:
PM22601817
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New building. full mechanical. new ductwork. heating piping. boilers. air handler. snowmelt. pb 41862
Valuation:
N/A
Permit #:
PM2201351
Status:
final
Fee:
$634
Permit Type:
Mechanical
Building Type:
N/A
Building addition; provide and install space heater gas piping and sidewall louver pb 42766
Valuation:
N/A
Permit #:
PM2400128
Status:
final
Fee:
$155
Permit Type:
Mechanical
Building Type:
N/A
To set three (3) rooftop unit at suite 316. this would be an extension of permit #pm20-001586. ducting/curbs/etc were completed previously on this permit
Valuation:
N/A
Permit #:
PM22-000843
Status:
issued
Fee:
$362
Permit Type:
Mechanical
Building Type:
N/A
Limited underground ductwork (1 run) moving of existing ductwork adding additional run. venting and makeup air for hood vent
Valuation:
N/A
Permit #:
PM24000761
Status:
final
Fee:
$170
Permit Type:
Mechanical
Building Type:
N/A
Furnace and water heater replacement **we will do our best to accommodate inspections that can be done safely. some inspections may be delayed until the governor's stay home order is lifted. inspectors may refuse inspections without proper safety controls in place
Valuation:
N/A
Permit #:
PMC200190
Status:
final
Fee:
$120
Permit Type:
07alt/add
Building Type:
N/A
Piping and venting associated with boiler replacements
Valuation:
N/A
Permit #:
PM2300888
Status:
final
Fee:
$231
Permit Type:
Mechanical
Building Type:
N/A
Supply air duct exhaust air ductwork and 2 exhaust fans
Valuation:
N/A
Permit #:
PM240167
Status:
final
Fee:
$145
Permit Type:
Mechanical
Building Type:
N/A
Duct (2) existing rtu's relocate gas addition (1) 5-ton remote terminal unit for white box area pipe cooler refrigeration
Valuation:
N/A
Permit #:
PM21-019V
Status:
final
Fee:
$482
Permit Type:
Mechanical
Building Type:
N/A
New commercial building for sherwin williams and private storm sewer lines
Valuation:
N/A
Permit #:
P22P271
Status:
final
Fee:
N/A
Permit Type:
plumbing
Building Type:
N/A
12 new supply air diffusers and 12 new return air grilles to be installed in the farm bureau suite which trubuilding concepts has a building permit for
Valuation:
N/A
Permit #:
PM21600637
Status:
final
Fee:
$125
Permit Type:
Mechanical
Building Type:
N/A
Interior remodel with trubuilding. space is on main level se corner of building. ducting & piping four existing heat pumps ductwork erv and exhaust fan
Valuation:
N/A
Permit #:
PM22604193
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New supply air diffusers located in new drop ceiling. new flex duct to connect to existing sheetmetal runouts. edward jones suite 203 pb 41107
Valuation:
N/A
Permit #:
PM2100467
Status:
final
Fee:
$160
Permit Type:
Mechanical
Building Type:
N/A
Provide and install approx 600 of gas piping from new meter to (2) rtu's serving bath/body space
Valuation:
N/A
Permit #:
PME22-0544
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New commerical bank need fees added to this w/contractor ifo
Valuation:
N/A
Permit #:
PP22-0311
Status:
issued
Fee:
$335
Permit Type:
N/A
Building Type:
N/A
Building alterations. new mechanical upgrades. new furnace. new ceiling mounted exhaust fans for bathrooms. linesets. sheetmetal
Valuation:
N/A
Permit #:
PM22601203
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Light interior remodel - addition supply and return air runouts and move existing return air grille
Valuation:
N/A
Permit #:
PM210056
Status:
issued
Fee:
$120
Permit Type:
Mechanical
Building Type:
N/A
Remodel pb 43476
Valuation:
N/A
Permit #:
PP2400517
Status:
issued
Fee:
$292
Permit Type:
plumbing
Building Type:
N/A
Remodel pb 43476
Valuation:
N/A
Permit #:
PM2401229
Status:
issued
Fee:
$425
Permit Type:
Mechanical
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Mahlon Mechanical Service License info
Verified License
| License # | 8004783 |
| Status | Active |
| State | Michigan |
| Type | Plumbing Contractor |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for Mahlon Mechanical Service 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 # | 7116230 |
| Status | Active |
| State | Michigan |
| Type | Mechanical Contractor |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for Mahlon Mechanical Service 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 # | 8004783 |
| 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 Mahlon Mechanical Service 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 # | 7116230 |
| 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 Mahlon Mechanical Service with the Michigan Department of Licensing & Regulatory Affairs
This is a sample of licensing data; click here to access a complete history.
100
BuildZoom Score
61
Permits
- Building permit records show that Mahlon Mechanical Service has worked on 61 permitted projects.
Mahlon Mechanical Service Employees
MF
Mahlon Fredrickson
Owner
MF
Mahlon G Fredrickson