Updated: May 22, 2026
Location and Projects
Address
501 32ND AVE NE, Austin, MN, 55912
Use our bidding system to
request a quote
MJ Oconnor Plumber
MJ Oconnor Inc, 501-32 Nd Ave NE, Austin, MN (Owned by: Michael J Oconnor, Jan B Oconnor, Michael J Oconnor Iii) holds a Contractor license and 13 other licenses according to the Iowa license board.
Their BuildZoom score of 110 ranks in the top 4% of 77,973 Minnesota licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring MJ Oconnor Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
MJ Oconnor Inc Services
Start a project today:
MJ Oconnor Inc Contact Information
Phone Number: (507) 438-3680
Edit
Address: 501 32ND AVE NE, Austin, MN 55912
Edit
Do you work for this business? Unlock this free profile to update company info and see who's viewing your profile.
MJ Oconnor Inc Austin
Quality
110
96th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
MJ Oconnor Inc has a BuildZoom score of 110, which places them above 96% of 77,973 contractors in Minnesota.
Activity
|
11 projects
|
2025 |
|
32 projects
|
2024 |
|
53 projects
|
2023 |
Our building permit records indicate that MJ Oconnor Inc has worked on at least
96.0 projects over the past 3 years.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Experience
|
38 projects
|
Home Additions |
|
82 projects
|
Plumbing projects |
|
8 projects
|
Sewer laterals |
Analyzing permits over the last 4 years shows that MJ Oconnor Inc mostly works on
plumbing project
and home addition
projects.
Pricing
|
53 projects
|
< $5k |
|
23 projects
|
$5k-$20k |
|
9 projects
|
$20k-$50k |
|
2 projects
|
$50k-$100k |
|
2 projects
|
$100k-$250k |
The typical size of their permits is approximately $3,500. This graph shows the distribution of these job values.
Pro tip:
For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.
This is a sample of this contractor's permits. Click here to access their complete permit history.
(209 2nd street) the city of delavan minnesota (owner) currently owns and operates one (1) municipal water treatment plant (wtp) two (2) water supply wells and one (1) water tower. the existing wtp is experiencing deteriorating conditions of internal components and infrastructure. the project will generally consist of rehabilitation of the current wtp to improve water quality and the ... see more
Valuation:
N/A
Permit #:
PB-P2502-0012
Status:
final
Fee:
$251
Permit Type:
N/A
Building Type:
N/A
(21697 mn-56) project includes a new 3, 400 square foot addition to the existing school building. the addition includes new classrooms and a wood shop
Valuation:
N/A
Permit #:
PB-P2403-0013
Status:
final
Fee:
$601
Permit Type:
N/A
Building Type:
N/A
Install plumbing fixtures toilets sinks tub showers dryer vents exhaust fans floor drains and water heaters in 4 apts
Valuation:
$117,600
Permit #:
20220274
Status:
applied
Fee:
$1,235
Permit Type:
Addition alterati...
Building Type:
N/A
(na 1st ave se & 4th st se) lift station storage/sampler building and site project is located at the intersection of 1st ave se and 4th street se grand meadow mn
Valuation:
N/A
Permit #:
PB-P2304-0020
Status:
final
Fee:
$201
Permit Type:
N/A
Building Type:
N/A
Replace 1 lochinvar with a new lochinvar boiler
Valuation:
N/A
Permit #:
BPV-P2411-021
Status:
final
Fee:
$80
Permit Type:
Add/change to exi...
Building Type:
N/A
Installation of owner provided dust collector and associated equipment along with ductwork provided by m j oconnor
Valuation:
$72,900
Permit #:
R23-1134CM
Status:
complete
Fee:
$791
Permit Type:
N/A
Building Type:
N/A
Inside plumbing
Valuation:
$40,000
Permit #:
20241688
Status:
applied
Fee:
$420
Permit Type:
Addition alterati...
Building Type:
N/A
Install new water heater
Valuation:
$13,170
Permit #:
20250007
Status:
applied
Fee:
$138
Permit Type:
Water heater
Building Type:
N/A
2 electric water heaters
Valuation:
$2,821
Permit #:
20250523
Status:
applied
Fee:
$76
Permit Type:
Addition alterati...
Building Type:
N/A
Install 3 new boilers 7 tankless water heaters
Valuation:
$165,850
Permit #:
20231355
Status:
applied
Fee:
$1,741
Permit Type:
Addition alterati...
Building Type:
N/A
(1900 8th ave nw) remove existing ballasted epdm roof assembly and install new asphalt built-up roof
Valuation:
N/A
Permit #:
PB-P2405-0094
Status:
final
Fee:
$826
Permit Type:
N/A
Building Type:
N/A
Demolish 5 sinks drains and venting in walls. connect water drain & venting for new kichenette
Valuation:
$2,500
Permit #:
20241177
Status:
applied
Fee:
$76
Permit Type:
Addition alterati...
Building Type:
N/A
Plumbing remodel
Valuation:
$6,500
Permit #:
20250210
Status:
applied
Fee:
$76
Permit Type:
Addition alterati...
Building Type:
N/A
Demolish old sewer from basement install pvc pipe and pressure test rough in underground for toilet shower and sink
Valuation:
$5,495
Permit #:
20230413
Status:
applied
Fee:
$76
Permit Type:
Addition alterati...
Building Type:
N/A
Remodel of existing bathrooms and moving the bar to a new location
Valuation:
$72,105
Permit #:
20220386
Status:
applied
Fee:
$757
Permit Type:
Addition alterati...
Building Type:
N/A
Remodel of existing bathrooms and moving the bar to a new location
Valuation:
$71,895
Permit #:
20220385
Status:
applied
Fee:
$755
Permit Type:
Addition alterati...
Building Type:
N/A
Install drain waste & venting for grease trap 3 compartment sink hand sinks floor drains
Valuation:
$18,000
Permit #:
20220035
Status:
applied
Fee:
$189
Permit Type:
Addition alterati...
Building Type:
N/A
Install drain waste venting & waters for pumping fixtures
Valuation:
$19,950
Permit #:
20250955
Status:
applied
Fee:
$209
Permit Type:
Addition alterati...
Building Type:
N/A
Loikaw 21 co 3-comp sink prep sink 2 floor drains and water heater
Valuation:
$9,975
Permit #:
20241237
Status:
applied
Fee:
$105
Permit Type:
Addition alterati...
Building Type:
N/A
Hot off the press plumbing
Valuation:
$27,000
Permit #:
20230138
Status:
applied
Fee:
$284
Permit Type:
Addition alterati...
Building Type:
N/A
Similar Contractors See more
110
BZ Score
$1.8K
Avg Project
-
Projects
110
BZ Score
$2K
Avg Project
-
Projects
License # BC807342
Rochester, MN
112
BZ Score
$9.3K
Avg Project
-
Projects
MJ Oconnor Inc Reviews
BuildZoom hasn't received any reviews for MJ Oconnor Inc. Click here to be alerted when reviews are posted about them.
Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
MJ Oconnor Inc License info
Verified License
| License # | C136362 |
| Status | Active |
| State | Iowa |
| Type | Contractor |
| Business Type | Not Available |
- BuildZoom verified this license was active as of December 2025.
Verify this license's status for MJ Oconnor Inc at the Iowa Workforce Development Agency.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | PM060738 |
| Status | Active |
| State | Minnesota |
| Type | Plumbing |
| Business Type | Not Available |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for MJ Oconnor Inc at the Minnesota Department of Labor & Industry.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | PM058584 |
| Status | Active |
| State | Minnesota |
| Type | Plumbing |
| Business Type | Not Available |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for MJ Oconnor Inc at the Minnesota Department of Labor & Industry.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | PL005863 |
| Status | Active |
| State | Minnesota |
| Type | Electrical |
| Business Type | Not Available |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for MJ Oconnor Inc at the Minnesota Department of Labor & Industry.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | MB003466 |
| Status | Active |
| State | Minnesota |
| Type | Mechanical Contractor Bond |
| Business Type | Not Available |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for MJ Oconnor Inc at the Minnesota Department of Labor & Industry.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | PC644663 |
| Status | Active |
| State | Minnesota |
| Type | Plumbing |
| Business Type | Not Available |
- BuildZoom verified this license was active as of December 2025.
Verify this license's status for MJ Oconnor Inc at the Minnesota Department of Labor & Industry.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | BF060738 |
| Status | Active |
| State | Minnesota |
| Type | Plumbing |
| Business Type | Not Available |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for MJ Oconnor Inc at the Minnesota Department of Labor & Industry.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | TS000379 |
| Status | Active |
| State | Minnesota |
| Type | Electrical |
| Business Type | Not Available |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for MJ Oconnor Inc at the Minnesota Department of Labor & Industry.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 50556-CL |
| Status | Active |
| State | Iowa |
| Type | Plumbing And Mechanical |
| Business Type | Not Available |
- When BuildZoom last verified this license, it had an expiration date of June, 2023. Check the current license status of MJ Oconnor Inc with the Iowa Department of Public Health
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | R1703 |
| Status | Active |
| City | Duluth |
| Type | Hvac Cont |
| Business Type | Not Available |
- When BuildZoom last verified this license, it had an expiration date of December, 2024. Check the current license status of MJ Oconnor Inc with the The City of Duluth, MN
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | BV001266 |
| Status | Active |
| City | Burnsville |
| Type | Contractor, Plumbing |
| Business Type | Not Available |
- When BuildZoom last verified this license, it had an expiration date of December, 2011. Check the current license status of MJ Oconnor Inc with the The City of Burnsville, MN
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | BF058584 |
| Status | Inactive |
| State | Minnesota |
| Type | Plumbing |
| Business Type | Not Available |
- According to the Minnesota Department of Labor & Industry, 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 MJ Oconnor Inc at the Minnesota Department of Labor & Industry.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | C106485 |
| Status | Inactive |
| State | Iowa |
| Type | Contractor |
| Business Type | Not Available |
- 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 MJ Oconnor Inc at the Iowa Workforce Development Agency.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | PM58584 |
| Status | Inactive |
| State | Minnesota |
| Type | Master Plumber |
| Business Type | Not Available |
- According to the Minnesota Department of Labor & Industry, 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 MJ Oconnor Inc at the Minnesota Department of Labor & Industry.
This is a sample of licensing data; click here to access a complete history.
110
BuildZoom Score
Bonded
| Bond Value | $25,000 |
279
Permits
- Building permit records show that MJ Oconnor Inc has worked on 279 permitted projects.
MJ Oconnor Inc Employees
.
.
JO
Jan B Oconnor
Owner/Officer
MO
Michael J Oconnor
Owner/Officer
MI
Michael J Oconnor Iii
Owner/Officer
MI
Michael J Oconnor, Jan B Oconnor, Michael J Oconnor Iii
Owner
MO
Michael J. Oconnor
MC
Michael O Connor
Owner
MO
Michael O'connor
Master Of Record
MI
Michael O'connor Iii
Owner
OJ
Oconnor, Michael J
Owner