Updated: May 19, 2026
Location and Projects
Address
123 SOUTHERN AVENUE, Dubuque, IA, 52003
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Molo Oil Company Plumber
Molo Oil Company, 123 Southern Ave, Dubuque, IA (Owned by: Kathleen Sigman) holds a Contractor license and 3 other licenses according to the Iowa license board.
Their BuildZoom score of 110 ranks in the top 4% of 39,764 Iowa licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Molo Oil Company, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Molo Oil Company Services
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Molo Oil Company Contact Information
Phone Number: (563) 557-8755
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Address: 123 SOUTHERN AVENUE, Dubuque, IA 52003
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Install a furnace air conditioning unit and air conditioning coil
Valuation:
N/A
Permit #:
M25-0022
Status:
issued
Fee:
$68
Permit Type:
N/A
Building Type:
N/A
Plumbing for remodel of church - rough in 3 sinks 1 toilet 2 lavatories 1 kitchen sink electric water heater sump pump sump pump jar gas pressure test sewage ejector
Valuation:
N/A
Permit #:
P22-0136
Status:
issued
Fee:
$89
Permit Type:
N/A
Building Type:
N/A
Install a toilet lavatory and a floor drain
Valuation:
N/A
Permit #:
P25-0179
Status:
issued
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Install furnace & air conditioning unit
Valuation:
N/A
Permit #:
M25-0151
Status:
issued
Fee:
$55
Permit Type:
N/A
Building Type:
N/A
Installing air conditioning & air handler
Valuation:
N/A
Permit #:
M25-0008
Status:
issued
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Repair roof drain that was leaking
Valuation:
N/A
Permit #:
P25-0191
Status:
issued
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Gas piping - gas pressure test
Valuation:
N/A
Permit #:
P25-0061
Status:
issued
Fee:
$51
Permit Type:
N/A
Building Type:
N/A
Run gas piping to stove run water line to refrigerator install kitchen sink & faucet for fire station #4
Valuation:
N/A
Permit #:
P24-0073
Status:
issued
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
18 dental chairs with vac air med gas - suite 300
Valuation:
N/A
Permit #:
P24-0795
Status:
issued
Fee:
$473
Permit Type:
N/A
Building Type:
N/A
Install a laundry tray
Valuation:
N/A
Permit #:
P25-0100
Status:
issued
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Installing hvac system
Valuation:
N/A
Permit #:
M25-0207
Status:
issued
Fee:
$54
Permit Type:
N/A
Building Type:
N/A
Installing furnace
Valuation:
N/A
Permit #:
M25-0012
Status:
issued
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Plumbing for remodel - including sewer line to new addition for garage addition bathroom and laundry
Valuation:
N/A
Permit #:
P22-0445
Status:
issued
Fee:
$109
Permit Type:
N/A
Building Type:
N/A
Installed boiler
Valuation:
N/A
Permit #:
M25-0206
Status:
issued
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Installed boiler
Valuation:
N/A
Permit #:
M25-0205
Status:
issued
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Installing boiler
Valuation:
N/A
Permit #:
M25-0204
Status:
issued
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Installing 2 air conditioning condensing units & 2 air conditioning condensing coils
Valuation:
N/A
Permit #:
M24-0888
Status:
issued
Fee:
$55
Permit Type:
N/A
Building Type:
N/A
Plumbing for renovation of 22 units for mt. carmel motherhouse
Valuation:
N/A
Permit #:
P25-0616
Status:
issued
Fee:
$1,526
Permit Type:
N/A
Building Type:
N/A
Install (2) condensate drains
Valuation:
N/A
Permit #:
P24-0789
Status:
issued
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Replace underground rotted 4 cast iron piping w pvc rough in shower drain for future
Valuation:
N/A
Permit #:
P22-0882
Status:
issued
Fee:
$25
Permit Type:
N/A
Building Type:
N/A
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Molo Oil Company Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Molo Oil Company License info
Verified License
| License # | C132805 |
| Status | Active |
| State | Iowa |
| Type | Contractor |
| Business Type | Corporation |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Molo Oil Company at the Iowa Workforce Development Agency.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 50714-CL |
| Status | Active |
| State | Iowa |
| Type | Plumbing And Mechanical |
| Business Type | Corporation |
- When BuildZoom last verified this license, it had an expiration date of June, 2023. Check the current license status of Molo Oil Company with the Iowa Department of Public Health
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 50714 |
| Status | Inactive |
| State | Iowa |
| Type | Plumbing And Mechanical |
| Business Type | Corporation |
- According to the Iowa Department of Public Health, 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 Molo Oil Company at the Iowa Department of Public Health.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | C085220 |
| Status | Inactive |
| State | Iowa |
| Type | Contractor |
| Business Type | Corporation |
- According to the Iowa Workforce Development Agency, 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 Molo Oil Company at the Iowa Workforce Development Agency.
This is a sample of licensing data; click here to access a complete history.
110
BuildZoom Score
Bonded
| Bond Value | $1 |
266
Permits
- Building permit records show that Molo Oil Company has worked on 266 permitted projects.
Molo Oil Company Employees
HM
Helen Molo
Owner
MM
Mark E Molo
Owner
MM
Maureen Molo
Owner
HM
Helen Molo
Owner/Officer
KS
Kathleen Sigman
Owner
LW
Louie Wiederholt
Master Of Record
MM
Mark E Molo
Owner/Officer
MM
Mark Molo
Owner
MM
Maureen Molo
Owner/Officer
RK
Russell Kruse
Master Of Record