State Farm® Insurance Agent Greg Kostuk
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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...
Alex Renteria
January 17, 2026
"Jacob was cool guy, did lots to get me set up with best deal"
Zachary Johnson
January 13, 2026
"Look, there’s boys, there’s men, and then there’s Justin. Not all hero’s wear capes, but Justin deserves one. Saved me nearly 250 a month. He saved my marriage, my dogs, my life. Honestly with the money I saved per month I’ll probably build a statue of Justin in my yard. Okay on a more serious note he was very helpful, calm and well put together. He listened to my needs and was willing to talk me through things even if it took me a minute to understand it. I would highly recommend calling them and seeing if Justin can help you out, I know he really did save me 250ish a month, same coverage and added a little."
Abby Bogart
January 10, 2026
"We cannot say enough great things about working with Justin Miller! As first-time homeowners, we had a lot of questions and honestly felt overwhelmed by the insurance process, but Justin made everything so clear and easy to understand. He walked us through our options, explained what coverage actually matters, and was incredibly responsive every step of the way. What really stood out was how much he genuinely cared about making sure we felt comfortable and confident with our decisions, never rushed, never pushy, just truly helpful and kind. We feel so lucky to have worked with him and would recommend Justin to anyone looking for an insurance agent who is knowledgeable, trustworthy, and great to work with."
"We’re happy Justin could guide you through everything with care and patience. Thanks for the great recommendation! - Greg Kostuk Insurance Agency"
Bonnie Carroll
January 9, 2026
"Maddie was very responsive, helpful, and patient. I appreciate the time she took to answer all my questions."
"We're happy to hear Maddie provided the support and answers you needed. Your support means a lot to us. Thank you for your review! - Greg Kostuk Insurance Agency"
Shayne Pearson
January 9, 2026
"Justin was very helpful and got all the needs met. He was very thorough and explained everything that I needed."
"Thank you for your kind words! We're glad to hear that Justin was thorough and helpful in meeting all your needs. We appreciate your feedback! - Greg Kostuk Insurance Agency"
Fred Smith
January 7, 2026
"Maddie did an excellent job explaining the homeowner policy. She was very friendly and knowledgeable."
"We're so glad Maddie was able to help you understand your homeowner policy with such friendliness and expertise. Thanks for sharing your positive experience! - Greg Kostuk Insurance Agency"
Wes Parker
December 29, 2025
"Justin was very awesome helped me with everything I needed and very professional and courteous thank you very much"
"Thank you for your kind words! We’re glad to hear Justin provided you with professional and courteous service while helping with everything you needed. We appreciate your trust and look forward to assisting you again! - Greg Kostuk Insurance Agency"
Hearts for Hopelessness
December 24, 2025
"Jacob is super knowledgeable and friendly! He definitely went above and beyond in assisting me with all my needs! 100% recommend."
"Thank you for taking the time to share your experience! Jacob is passionate about helping our clients, and it’s fantastic to know he exceeded your expectations. We’re grateful for your trust and recommendation! - Greg Kostuk Insurance Agency"
Marco Tohe
December 22, 2025
"Jacob is a great guy!"
"Thanks for sharing! Jacob is indeed a fantastic member of our team, and we’re glad you think so too. Let us know if there’s anything we can do for you! - Greg Kostuk Insurance Agency"
Jessica Manjarrez
December 19, 2025
"Justin made my insurance transition to State Farm smooth & effortless. He was always quick to respond, answered all of my questions and was always friendly and welcoming."
"Thank you so much for your kind words! We're thrilled to hear that Justin made your transition to State Farm smooth and effortless. Providing quick, friendly, and helpful service is our top priority, and we’re glad Justin delivered just that. Please don’t hesitate to reach out if you need anything else! - Greg Kostuk Insurance Agency"
Scarlett M
December 17, 2025
"Justin was very helpful and explained the coverage thoroughly."
"Thank you for your kind words. We are happy to hear that Justin was able to provide helpful and clear service! - Greg Kostuk Insurance Agency"
Brandee Goings
December 16, 2025
"Heather, Ashley ,Nestor all do there best to help answer any of my questions. There great"
"We appreciate your feedback and are happy that you’ve received great support whenever you needed assistance. - Greg Kostuk Insurance Agency"
Jase Diblasi (miniblaz24)
December 16, 2025
"Justin Miller was extremely helpful taking the time to actually explain insurance to me which was cool"
"We appreciate your feedback and are happy to know that the time taken to explain everything made a positive difference for you. - Greg Kostuk Insurance Agency"
Pat Langdon
December 11, 2025
"Very positive experience with Justin!"
"Hi Pat! Thank you for sharing your positive experience. Please reach out if you ever need anything! - Greg Kostuk Insurance Agency"
Breena I
December 4, 2025
"Amber was very helpful and answered the many questions I had about adding my 16 year old to our car insurance. She worked hard to get us the best rate!"
"We're happy to hear Amber provided thorough answers and helped secure a great rate for your car insurance. Thanks for sharing your positive experience! - Greg Kostuk Insurance Agency"
Sara Copeland
December 3, 2025
"Justin has been great to work with! He set me up with the coverage I needed quickly and continues to respond promptly to needs as they have arisen after all policies were in place. I highly recommend working with this office!"
"We’re thrilled that Justin has provided you with excellent service from start to finish. Your recommendation means a lot to us, and we’re always here to help with any needs that come up! - Greg Kostuk Insurance Agency"
Beth Carter
November 23, 2025
"Amber took the time to furnish me with copies of my renewal card and declarations. She was friendly and helpful. Lisbeth Carter"
"It’s wonderful to know Amber provided friendly and helpful service. Thanks for sharing your experience! - Greg Kostuk Insurance Agency"
Jason Dimelow
November 21, 2025
"Mike Sena was great, got me a lower rate. Thanks!"
"Thank you for your feedback! We're glad Mike was able to secure a lower rate for you. We appreciate your trust and are here if you need anything else! - Greg Kostuk Insurance Agency"
Mark Pugliese
November 21, 2025
"Very helpful great working you Steve great job thank you"
"We’re happy to know that Steve provided great help and service. Thanks for taking the time to share your positive experience! - Greg Kostuk Insurance Agency"
Sid Farber
November 13, 2025
"My experience working with them has been excellent. Mike Sena is always there to answer my questions and help me get the best deal!"
"It’s wonderful to hear that Mike has been there to answer your questions and assist you every step of the way. We appreciate your positive review and are here whenever you need us! - Greg Kostuk Insurance Agency"
Andrew Shirk
November 13, 2025
"Mike is the man, always helping me out!"
"We’re happy to hear Mike has been consistently there for you! Thanks for sharing your positive experience. - Greg Kostuk Insurance Agency"
Nathan Mccoy
November 12, 2025
"Justin was on top on my questions. I sent an email requesting some info and he called promptly and was able to answer all my question and get me the documents I needed."
"It’s wonderful to hear that Justin was so attentive and helpful with your request. Thank you for sharing your experience! - Greg Kostuk Insurance Agency"
Diane
November 11, 2025
"Zach, the office manager, is a magician!! He figured out how to reduce our daughter’s rate by over 25%! I spoke to another person and they weren’t able to do this. So, always, ALWAYS ask to speak with Zach as he definitely has your back!😉 P.S. I highly recommend this Agency for their outstanding service!"
"It’s fantastic to hear how Zack went above and beyond to find savings for your daughter. We appreciate you highlighting his dedication and your recommendation of our agency. We look forward to continuing to support you! - Greg Kostuk Insurance Agency"
Saul Silva
November 11, 2025
"Straight to the point, real easy communication and explanations. Goat"
"Thank you for your kind words. We look forward to serving you in the future! - Greg Kostuk Insurance Agency"
Kimberly G
October 31, 2025
"Zack was fast to act and help us with our needs. I have used State Farm for over 40 years exclusively and they have never disappointed me. I would highly recommend!"
"It’s wonderful to hear that Zack was able to help you so quickly and that State Farm has consistently met your expectations over the past four decades. Thank you for your continued support and for recommending us to others! - Greg Kostuk Insurance Agency"