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BBB Accredited Business since

Diana Kostal Insurance Agency, Inc.

Phone: (414) 964-8680 Fax: (414) 964-1199 1410 E Capitol Dr, Milwaukee, WI 53211

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


This company states it offers all lines of property and casualty insurance services which includes life insurance, auto, health, home owners, long term care, disability and business owners insurance.

BBB Accreditation

A BBB Accredited Business since

BBB has determined that Diana Kostal Insurance Agency, 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 Diana Kostal Insurance Agency, Inc.
Customer Experience Total Customer Reviews
Positive Experience 0
Neutral Experience 0
Negative Experience 0
Total Customer Reviews 0

Additional Information

BBB file opened: January 18, 2007 Business started: 08/01/1999 in WI Business started locally: 08/01/1999 Business incorporated 01/09/2004 in WI
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:

Wisconsin State Office of the Commissioner of Insurance
P.O. Box 7873, Madison WI 53707-7873
Phone Number: 608-266-3585 state wide 800-236-8517
Fax Number: 608-266-9935 for general office

Type of Entity


Business Management
Ms. Diana E. Kostal, President
Contact Information
Principal: Ms. Diana E. Kostal, President
Business Category

Insurance Services Financial Services Insurance - Medical Liability Insurance Services - Commercial Insurance - Medicare Supplement Insurance - Auto Insurance - Fire & Flood Specialists Insurance - Health Insurance - Homeowners Insurance - Life Insurance - Long Term Care Insurance - Marine Insurance - Liability Insurance - Property Insurance - Workers Compensation Insurance Consultants Insurance Agencies and Brokerages (NAICS: 524210)

Hours of Operation
M: 9:00 AM - 5:00 PM
T: 9:00 AM - 5:00 PM
W: 9:00 AM - 5:00 PM
Th: 9:00 AM - 5:00 PM
F: 9:00 AM - 5:00 PM
Saturday & Sunday evenings by appointment.
Alternate Business Names
State Farm Insurance
Industry Tips
Advanced Fee Loans Avoiding Fraudulent Tax Preparation Counterfeit Currency Credit Card Accountability, Responsibility and Disclosure (CARD) Act Credit-Budgeting Made Easy Wisconsin Auto Insurance Requirements

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.