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BBB Accredited Business since

MJ O'Connor, Inc.

Additional Locations

Phone: (507) 433-5017 Fax: (507) 433-2270 1507 14th St NE, Austin, MN 55912 View Additional Email Addresses

BBB Business Reviews may not be reproduced for sales or promotional purposes.


MJ O'Connor, Inc. provides plumbing, heating & air conditioning installation, service & repair for commercial & residential customers. They also do commercial refrigeration. We offer high quality brand name products for your business and home.

BBB Accreditation

A BBB Accredited Business since

BBB has determined that MJ O'Connor, Inc. meets BBB accreditation standards, which include a commitment to make a good faith effort to resolve any consumer complaints. BBB Accredited Businesses pay a fee for accreditation review/monitoring and for support of BBB services to the public.

BBB accreditation does not mean that the business' products or services have been evaluated or endorsed by BBB, or that BBB has made a determination as to the business' product quality or competency in performing services.

Reason for Rating

BBB rating is based on 13 factors. Get the details about the factors considered.

Customer Complaints Summary

0 complaints closed with BBB in last 3 years | 0 closed in last 12 months
Complaint Type Total Closed Complaints
Advertising/Sales Issues 0
Billing/Collection Issues 0
Delivery Issues 0
Guarantee/Warranty Issues 0
Problems with Product/Service 0
Total Closed Complaints 0

Customer Reviews Summary Read customer reviews

0 Customer Reviews on MJ O'Connor, Inc.
Customer Experience Total Customer Reviews
Positive Experience 0
Neutral Experience 0
Negative Experience 0
Total Customer Reviews 0

Additional Information

BBB file opened: February 26, 2002 Business started: 01/01/1993 Business started locally: 01/01/1993 Business incorporated 01/01/1993 in MN
Licensing, Bonding or Registration

This business is in an industry that may require professional licensing, bonding or registration. BBB encourages you to check with the appropriate agency to be certain any requirements are currently being met.

These agencies may include:

Minnesota Department of Labor and Industry
443 Lafayette Rd N, Saint Paul MN 55155
Phone Number: (651) 284-5005

Type of Entity


Business Management
Michael J. O'Connor, President Jan O' Connor, 1st Vice-President Michael J. O' Connor III, 2nd Vice President Julie Pratt, Administrative Assistant
Contact Information
Principal: Michael J. O'Connor, President
Business Category

Mechanical Contractors Plumbers Plumbers - Commercial Plumbers Heating & Air Conditioning Air conditioning & Heating Contractors - Residential Air conditioning & Heating Contractors - Commercial Heating Equipment & Systems Cleaning & Repair Refrigeration Equipment - Commercial - Sales & Service Heating Contractors

Hours of Operation
8:00 AM - 5:00 PM Monday - Friday - Closed from 12 - 1 - Emergency Services 24/7
Service Area
Minnesota and Iowa
Products & Services

According to the information provided by MJ O'Connor, Inc., this company offers plumbing, heating, cooling and refrigeration services to commercial and residential customers.

Industry Tips
Tips to Consumers for the HVAC Industry

BBB Customer Review Rating plus BBB Rating Overview

BBB Customer Reviews Rating represents the customers opinions of the business. The Customer Review Rating is based on the number of positive, neutral and negative customer reviews posted that are calculated to produce a score.

Customer Review Experience Value
Positive Review 5 points per review
Neutral Review 3 points per review
Negative Review 1 point per review

BBB letter grades represent the BBB's opinion of the business. The BBB grade is based on BBB file information about the business. In some cases, a business' grade may be lowered if the BBB does not have sufficient information about the business despite BBB requests for that information from the business.

BBB Letter Grade Scale

BBB Rating Value
A+ 5
A 4.66
A- 4.33
B+ 4
B 3.66
B- 3.33
C+ 3
C 2.66
C- 2.33
D+ 2
D 1.66
D- 1.33
F 1
NR -----
Star Rating scale

  Average Score
5 stars 5.00
4.5 stars 4.50-4.99
4 stars 4.00-4.49
3.5 stars 3.50-3.99
3 stars 3.00-3.49
2.5 stars 2.50-2.99
2 stars 2.00-2.49
1.5 stars 1.50-1.99
1 star 0-1.49

BBB Customer Review Rating plus BBB Rating is not a guarantee of a business' reliability or performance, and BBB recommends that consumers consider a business' BBB Rating and Customer Review Rating in addition to all other available information about the business. If the BBB Rating is NR then only Customer Reviews are used for the Star Rating.