State Farm® Insurance Agent Diana Kostal
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Our customers are the center of our universe and we’re grateful for them. If you’re willing to share your experience about your interaction with our agency, it’ll be a great help for other people looking to make smart and confident decisions about their insurance and financial services.
Take 60 seconds (or more if you want) to share your story by clicking on one of the review links below.
What our customers say about us...
Sarah Rose Werner
September 30, 2024
"Working with Kay on Diana's team was incredibly easy, and super informative! As a new entrepreneur, I was overwhelmed with finding a small business insurance that would work for what I needed, and Kay took the time to learn about me, my business, and how she would be able to best support me. I am so glad to have gotten connected with her and the Diana Kostal team, and would highly recommend working with them!"
"It was truly a pleasure to help you with the protection and information you needed for your business insurance. We want you to be able to focus on being successful business owner and we will focus on protecting you and your future. Thank you again for trusting us with your business protection. "
Pam Poglitsch
March 24, 2024
"The tall ceilings welcome into a grand room and the lights were just right to create a special night."
"Thank you for the 5 star review, Pam."
Luci Klebar
January 31, 2024
"Diana was very helpful in providing a solution for a new resident at Saint John's On The Lake."
"Thank you for taking the time to share your positive experience with Diana at State Farm. At Diana Kostal State Farm, our goal is to provide exceptional service and personalized solutions to meet the unique needs of our customers. Diana is dedicated to delivering top-notch assistance and ensuring that you feel supported throughout the process."
Shawn Morris
October 3, 2023
"Friendly service"
"Thanks for the 4 Star Google Review! Thank you so much for your insurance business, Shawn. We appreciated the opportunity to be of service to you for all of your insurance needs. Be sure to tell your friends and family about us, we would love to earn their business! - Diana Kostal State Farm Insurance Agent, Milwaukee, WI"
Jaedin Anderson
June 9, 2023
"I have auto insurance through them and Kay does an amazing job explaining everything"
"Thank you so much for allowing us to be of service to you for your Auto insurance. We know that you have many options and are so happy that you chose us. I am also glad you had the opportunity to work with Kay as she does explain things very well. Thanks so much againl"
Kalvin Finger
April 18, 2023
"Have my life insurance with Diana's office. Great service and always helpful. Alex, one of Diana's team members, is especially great to work with. Very professional and meets me on a personal level."
"Thank you so much for the review. We appreciate the opportunity to be of service to you."
Sal Abrams
April 18, 2023
"If you’re looking for an agent that has your best interest in mind, Diana isn’t it. I was a customer from 2019-2023 for my auto, renters, and eventually homeowners insurance. The majority of my issues were miscommunications, nothing to get bent out of shape over. I then bought my first home which I knew needed a new AC unit, and her office encouraged me to make a claim through their Home Systems Protection (home warranty). They falsely led me to believe that since the HSP is through a separate company, it was as if it were totally separate from making a homeowners claim and assured me there would be no penalties or detriment for doing so. Even when I made a second claim within a few months using the HSP for my furnace, not a word of caution was given to me. What they failed to mention was that the claims do in fact get processed through State Farm, thus getting stamped on your record. Recently I started checking to make sure I had a competitive rate on my homeowners policy and realized that I was labeled ‘high risk’ and most companies wouldn’t insure me because of my claim history, (2 HSP claims that both got denied and a $500 claim from a stolen bike in 2019 through my renters insurance). When I finally got Diana on the phone and asked her what she knew about my situation, her response was ‘I know you’re shopping around for new insurance’. She didn’t even pretend to help me resolve my situation and I was on my own to get it figured out. I got a superficial apology and she told me that she was basically a middle man for corporate, and that there was nothing she could do. This resulted in weeks of headache and work trying to get my situation and ‘high risk’ status cleared up and shopping for a company that would insure me. All from two denied claims for a furnace/AC and a stolen bicycle. As a new homeowner, given how much support I had from my experience not even having to make a true claim, I certainly would not have any faith in her being in my corner if something terrible happened."
"We value all types of feedback and apologize for your less than positive experience with our office. I would like to discuss this further with you if you would like to give me a call. Unfortunately, we have no control over the claims process, but wish you all the best."
Angie Pifel
April 16, 2023
"Alex was wonderful helping sort through our policies, he is very knowledgable & explained everything very well! He is always very quick to respond and help!"
"Thank you so much for your business as it means so much to us. We appreciate this opportunity to be of service to you and happy Alex was able to meet your needs. Thanks so much again."
Chuck Yerkes
October 6, 2022
"Great service. Friendly people. Very knowledgeable about insurance needs and coverages. Strongly recommend this State Farm agency!"
"Thanks so very much for your positive review. It is truly a pleasure doing business with you."
Curtis Monk
August 2, 2022
"Recently had a very positive experience with Kay Kirchner at the Diana Kostal State Farm Insurance Agency, involving Landlord insurance. She stepped in and quickly resolved a temporary communications break down. She was knowledgeable, patient, professional and promptly addressed my service issues. She's an excellent representative of the State Farm Brand."
"Thank you so much for leaving a positive review about your experience with our office. We welcome the opportunity to be of service to you and thank you again for your review of our insurance agency."
Scott Mullins
May 13, 2022
"Kay and Diana are experts in their field. They always add value by listening to my needs then providing advice with my best interest in mind. The follow up and service is always exceptional with this team. I have worked with the Diana Kostal office for 30 years and look forward to many more with them."
"We cannot thank you enough for your many years of business with our agency. We look forward to continuing our successful long term insurance relationship with you. Thanks so much again."
Dena Rubnitz
April 8, 2022
"The Diana Kostal Agency was outstanding in saving me a TREMENDOUS amount of money in the area of car insurance as well as an umbrella policy this past year!!! I also want to give a big shout out to Kay Kirchner who kept me off the "ledge" so to speak, and provided our family with great service as well searching and finding a great insurance package for us! I now have bundled everything that I need to be insured with State Farm and The Diana Kostal Agency! The personal attention to detail was amazing as well as Kay's ability explain the benefits of bundling all of our insurance needs together, was a win win!! Thank you Kay and Diana!!!"
"Thank you so very much for your positive review regarding your experience with our office. It was truly a pleasure to save you lots of money and provide great insurance coverage for you and your family."
William Reid
July 1, 2021
"During our first meeting with Kay K, she explained how to best design our HOA policy and Unit policy. We are so impressed with her knowledge and ability to explain the legalese of insurance documents, that we also changed our auto, boat and umbrella to State Farm. Very glad we found and now work with Kay."
"Kay is a great compliment to our team and I am so glad that she was able to help you. Thank you for your confidence in our office and for your business."
Darcy Cooper
July 1, 2021
"Diana Kostal and her team have been a great help through out the pandemic and currently. Great customer service."
"We greatly appreciate your insurance business and look forward to continuing to serve you in the future."
deba briscoe
May 18, 2021
"Great team of professionals!"
"Thank you so much for your compliments and your business."
Erik Thelen
April 29, 2021
"Diana Kostal and hr team have been looking after us for more than 20 years. There is always someone there to answer the phone when I call, and if I send an email question I get a quick and thorough reply. Diana and Kay are familiar with our family and our property, and they have made good practical suggestions and helped us save money on our policies by calling our attention to available discounts. This is a local business we trust and are glad to support."
"Thank you so much for your business. We look forward to continuing our long term relationship."
Patrick Shirley
April 16, 2021
"My experience with this agency was almost entirely negative. Let's start with a non-competitive price relative to other insurance for the same level of coverage. Then let's tack on lack of smooth and quick response. Several times, when I had to have a tow reimbursed, I was told I could only recieve payment by mailed check. This is simply unacceptable in modernity. This is literally not even up to 1890s standards of technology. In one case, the check never arrived, and I had to ask for it to be resent, further delaying payment. The second time, the office sat on my issue, and didn't address it, as the actual agent was out of the office for two weeks. They only filed it with corporate claims after repeated phone calls from me. During one of those calls, an employee of this agency took issue with my statement that they were providing sub par service, and raved about how long she'd been working in this field, and how she would hang up to such "rudeness". Ok boomer. Later that day, I received a curt follow up email detailing that essentially, I could take up any future concerns with corporate. To be clear, the two younger employees I had previously interacted with were nothing but helpful, response, and decent. Seriously, I would not recommend this agency to my worst enemy. EDIT: Shortly after this review, I received an unsolicited phone call from Diana. The level of unprofessionalism and cluelessness demonstrated only increased, and the overall tenor of her conversation was "please get rid of the review. I had not asked to be called, basically, she wanted to see how many platitudes would make me happy. This is utterly unacceptable, and reeks of retaliation and harassment following a bad review."
"I am sorry it was not a pleasant experience for you. We regret that we were not able to meet your needs."
Rebecca Alston
January 10, 2021
"Quick and very reasonable"
"We appreciated the opportunity to be of service to you."
martin josephson
November 23, 2020
"They have always been attentive to what I needed and have provided good service."
"Thank you for your business."
T Y
September 16, 2020
"Great services. Thanks Diana and Kay to go over all of the details and options for our current home policy and then new house we just bought, and all of the different deductions."
"We appreciate the opportunity to be of service to you."
Roy Bahat
September 16, 2020
"They were fast, communicative, and got us sorted. Loved the experience. Thank you Kay!"
"Thanks so much for the kind words and review."
Lisa Bonnell
August 21, 2020
"After struggling to get quotes and information from other agencies, I found Diana's information and gave the office a call, expecting to run into similar issues. Instead, I received the best service I have ever received from an insurance agency! I spoke to Emma, who was not only professional, but she was kind and personable too. She answered all of my questions, quickly provided a quote, verified all of the information, and even did an immediate update since I provided the wrong address for an additional insured. It felt like she was taking care of me the same way she would take care of family and you could tell her genuine big smile, even while on the phone. I am so happy I called! Thank you Emma!"
"Emma has been a compliment to our team and glad you had the same experience we do every day with her."
Sam Moser
March 2, 2020
"They are just superb to work with! Nothing like having this team being able to answer questions and get you rolling. In person meetings and phone calls are always handled professionally and efficiently. 5 stars all the way!"
"Thank you for your great review and we appreciate the opportunity to be of service to you."
Cindy P
August 18, 2019
"Never helped me out"
Rich Wood
April 3, 2019
"When we relocated to Wisconsin from Arizona for work Diana Kostal was very easy to work with and put our minds at ease in terms of discussing the right amount of insurance we needed. We had Diana as our agent from 2014-2019 and I would highly recommend Diana and her staff in the future. If I ever relocate to Wisconsin again she will be my agent."
"Thank you so much for your positive review of our agency for insurance. We appreciate the opportunity to be of service to you."