State Farm® Insurance Agent Greg Kostuk
Leave Us a Review
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...
Casey Sams
May 15, 2026
5
out of
5
rating by Casey Sams
"Justin was amazing to work with!!!! So helpful and saved me some $ highly recommend you give him a call!"
Chasten Rogge
May 15, 2026
5
out of
5
rating by Chasten Rogge
"I worked with Jacob who was very easy to communicate with via email and calls. He was informative on what our policy meant and was quick to help with quotes. It was an easy switch from my prior auto insurance carrier and at a much better price!"
Nate Fluharty
May 13, 2026
5
out of
5
rating by Nate Fluharty
"Justin was very helpful and was able to save us some money. Thanks for your help"
Brandy Garcia
May 13, 2026
5
out of
5
rating by Brandy Garcia
"I used ro have state farm awhile ago and I switched because the representatives were out of touch but after receiving a call today and talking to Greg and Zach I've decided to go back because they gave me an amazing rate and amazing customer service, Greg went over all the different policy items in great detail and made everything make more sense for me so I added more coverage that I was missing out on, id highly recommend them to anyone looking for new insurance"
We responded:
"Thanks again for your recommendation! We’re honored to have you as a customer and we’ll be here anytime you need help or your needs change. - Greg Kostuk Insurance Agency"
Nathan Seldomridge
May 11, 2026
5
out of
5
rating by Nathan Seldomridge
"Very happy with service provided by Jacob, and his extra efforts to document factors on my policy which will save me money. I would recommend this agency."
We responded:
"Thank you so much for the great review! We’re thrilled to hear Jacob provided such a positive experience and took extra time to document factors on your policy that will save you money. We truly appreciate your recommendation. - Greg Kostuk Insurance Agency"
Mike Lechicki
May 8, 2026
5
out of
5
rating by Mike Lechicki
"Great experience Fast business over the phone when I needed"
We responded:
"Thank you for the great review! We’re glad you had a smooth experience and that we were able to help quickly over the phone when you needed it. - Greg Kostuk Insurance Agency"
Nae'sLoveCharms PC
May 1, 2026
5
out of
5
rating by Nae'sLoveCharms PC
"Justin was amazing was very helpful and resourceful for my needs. Also incredibly accommodating!"
We responded:
"Thank you for sharing your experience. It means a lot to hear Justin was able to support your needs and make the process smooth and easy for you. - Greg Kostuk Insurance Agency "
Jonathan Bauder
April 29, 2026
5
out of
5
rating by Jonathan Bauder
"Justin Miller made the entire insurance process feel easy and genuinely personal. From the start, he took the time to clearly walk us through the benefits of bundling our new home and auto policies, making sure we understood every detail without ever feeling rushed or overwhelmed. His guidance ended up saving us thousands of dollars, which honestly exceeded our expectations. What really stood out is how approachable and invested he is—it's reassuring to know we have a local representative we can trust as our needs evolve over time. Justin goes above and beyond, and it shows. We couldn’t recommend him more highly!"
We responded:
"Thanks again for your kind words! Justin will be proud to hear that his approach felt approachable, invested, and reassuring as your needs evolve. We’re honored to have the opportunity to support you for the long run. - Greg Kostuk Insurance Agency"
Jace Craven
April 28, 2026
5
out of
5
rating by Jace Craven
"Justin and Brian helped me out getting set up with a new insurance policy and both were as clear, concise, and personable as anyone could have hoped for. Talked me through several options, while giving me the facts, but didn't push me in any direction. Very much appreciated their help and attitudes."
We responded:
"We really appreciate you taking the time to share your experience. Providing clear guidance, multiple options, and a no-pressure approach is exactly what we strive for. Thanks for trusting us with your new policy! - Greg Kostuk Insurance Agency"
Laura Zweygardt
April 28, 2026
5
out of
5
rating by Laura Zweygardt
"Greg was very friendly and helpful in getting us a good deal on our car insurance and explained everything in a way that made sense"
We responded:
"We appreciate you taking the time to share your experience. We're glad that we were able to help save you money and explain your coverages in an understandable way. - Greg Kostuk Insurance Agency"
John Munsey
April 28, 2026
5
out of
5
rating by John Munsey
"Justin is great"
We responded:
"Thank you for your review! We’re happy Justin was able to help. If you ever need anything, we’re here for you. - Greg Kostuk Insurance Agency"
Ryan
April 24, 2026
5
out of
5
rating by Ryan
"Greg was able to increase my coverage amounts and lower my monthly bill. I switched the same day. I highly recommend working with him."
We responded:
"Thank you! It’s awesome to hear our office helped you get the right coverage at a better price. We appreciate you taking the time to share your experience and we’re here anytime you need us. - Greg Kosutk Insurance Agency"
Roger Long
April 24, 2026
5
out of
5
rating by Roger Long
"Justin was GREAT! He got us amazing rates, answered all of our questions and took time to research everything! We look forward to working with Justin if anything ever arises!"
We responded:
"Thanks for sharing your experience! We’re glad Justin made the process easy and took the extra time to ensure you were well-informed. We appreciate your trust and look forward to working with you in the future. - Greg Kostuk Insurance Agency"
Scarlett M
April 24, 2026
5
out of
5
rating by Scarlett M
"Justin was very helpful and explained the coverage thoroughly."
We responded:
"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"
Sarah Curtis
April 23, 2026
5
out of
5
rating by Sarah Curtis
"Jacob is great! He was really good at walking us through questions we had and has an amazing attitude and very personable. He got us an awesome policy. I was paying way more with my pervious insurance company. So glad he called!"
We responded:
"We really appreciate you taking the time to share your feedback. Jacob’s focus on answering questions and helping you feel comfortable is exactly what we aim for, and we’re glad it led to great coverage and lower costs. - Greg Kostuk Insurance Agency"
The Wood
April 23, 2026
5
out of
5
rating by The Wood
"I saved money, my agent was professional, informative and friendly. I highly recommend Justin at State Farm with tan khakis pants and a red shirt."
We responded:
"Thanks for sharing your experience! We’re glad Justin was professional and helpful while helping you save. If you ever have questions or need anything, we’re here for you. - Greg Kostuk Insurance Agency"
Rowan Ravenspell
April 20, 2026
5
out of
5
rating by Rowan Ravenspell
"Fast friendly and great coverage for a lower price than I was paying! Thank you!"
We responded:
"We really appreciate your kind words. It’s awesome to hear you received excellent service and improved coverage while paying less. Thanks again, Rowan! - Greg Kostuk Insurance Agency"
Marissa Latimer
April 20, 2026
5
out of
5
rating by Marissa Latimer
"Justin made finding new insurance incredibly easy and stress-free. Shopping for insurance is usually my least favorite thing to do, but he kept everything simple and straight to the point. I definitely recommend working with him!"
We responded:
"Thank you Marissa for your review! We’re proud you had a smooth experience and that the process stayed clear and low-stress from start to finish. - Greg Kostuk Insurance Agency"
emmy s
April 17, 2026
5
out of
5
rating by emmy s
"They have an amazing response time and are very professional. Couldn’t ask for better agents. Greg and Amber are awesome!"
We responded:
"Thank you! We’re happy to hear our team has been responsive and professional. - Greg Kostuk Insurance Agency"
Lacy Russell
April 16, 2026
5
out of
5
rating by Lacy Russell
"Shout out to Adam for getting me connected to the team! Justin was incredibly thorough and so so helpful when it came to getting some quotes for our home & auto. Saving some $$$ and increasing our coverage - an easy "yes"!"
We responded:
"Thanks so much for sharing your experience. Justin’s attention to detail and willingness to help made a real difference, and we’re happy you were able to lower costs while increasing your coverage. We’re here anytime you need us! - Greg Kostuk Insurance Agency"
hunter Rynders
April 16, 2026
5
out of
5
rating by hunter Rynders
"Justin was very helpful with getting me set up with a state transfer. Starting coverage here as well as connecting with my previous agent to make it a smooth process"
We responded:
"Thank you! We’re happy to hear Justin was very helpful with your state transfer. From starting your coverage here to coordinating with your previous agent, we’re glad everything went smoothly. - Greg Kostuk Insurance Agency "
Verónica
April 15, 2026
5
out of
5
rating by Verónica
"Tube mui buen servicio me atendió Javier en el área de denver col."
We responded:
"Thank you for the kind review. We are here to help with all of your insurance needs! - Greg Kostuk Insurance Agency"
Kayla Benson
April 15, 2026
5
out of
5
rating by Kayla Benson
"Jacob was a pleasure to work with, answered all my questions and has amazing customer service."
We responded:
"Thank you for the kind words! We’re glad Jacob was able to answer all your questions and that you had such a great experience with our office. - Greg Kostuk Insurance Agency"
Lisa Denning
April 14, 2026
5
out of
5
rating by Lisa Denning
"Jacob was great! He was very informative and detailed. He was very respectful and was not pushy."
We responded:
"We appreciate you taking the time to share your experience. It’s wonderful to know Jacob helped you feel comfortable and informed throughout the process—thank you for choosing our team. - Greg Kostuk Insurance Agency"
Nate Tamrat
April 8, 2026
5
out of
5
rating by Nate Tamrat
"Justin walked me through my coverage options with ease and got me a great premium for a smaller deductible. Called my prior insurance to cancel and they even admitted their rates are extremely competitive and could not be matched. So thank you Justin for the assist, will be enjoining my $600 a year savings and lower deductible!!!"
We responded:
"Thank you for your kind review! We’re so glad Justin could assist you in getting a more competitive rate and a smaller deductible. Enjoy your savings, and please don’t hesitate to reach out if you need anything in the future. - Greg Kostuk Insurance Agency"