Brandon A. Robertson
Agency Owner
As daily routines change to help slow the spread of COVID-19 in your community, you’ll need easy ways to work with us. We’re available at the touch of a button no matter when, where or how you need to reach Allstate.
- Log in to MyAccount or download the Allstate mobile app to access and manage your policies.
- Our office staff is available by phone or email during business hours. Phones are forwarded after hours to our customer care representatives.
Allstate Insurance Agency Diamond Insurance Solutions, Inc., Matteson, IL
Select a Product to Get a Quote
![]()
Office Hours
| Day of the Week | Hours |
|---|---|
| Mon | 9:00 AM - 6:00 PM |
| Tue | 9:00 AM - 6:00 PM |
| Wed | 9:00 AM - 6:00 PM |
| Thu | 9:00 AM - 6:00 PM |
| Fri | 9:00 AM - 5:00 PM |
| Sat | Available by appointment |
| Sun | Closed |
After-hours appointments available.
Available 24/7 at
(708) 314-7671
4330 Lincoln Hwy Matteson, IL 60443 US
Areas Served
Chicago, Matteson, Chicago Heights, Frankfort, Tinley Park, Mokena
Landmarks
On Lincoln Highway behind LA Fitness
Diamond Insurance Solutions, Inc.: Allstate Insurance
Local Allstate Agency: Meet Diamond Insurance Solutions, Inc.
I’ve lived in the Matteson community for six years. I am a proud alumni of Illinois State University. Before coming to Allstate, I worked in corporate management and customer relationships within the insurance industry for fifteen years. I am passionate about educating and helping customers understand different aspects of insurance.
Being involved in our community is very important to me. As a result, I work on weekends as support staff at Mercy Home for Boys & Girls in Chicago. I believe in reaching out to the youth in order to help them build the confidence and skills they need to have successful futures. I am also a member of the Matteson area Chamber of Commerce, Chamber 57. I am a proud member of Kappa Alpha Psi Fraternity, Inc., currently serving on the Board of Directors for the Richton Park Kappa Alpha Alumni Chapter, in addition to serving as the Undergraduate Chapter Advisor for the Kappa Alpha Chapter (Illinois State University).
At the Diamond Insurance Solutions Agency, we believe that life is much more meaningful & fulfilling when one is able to impact the lives of others in a positive & unforgettable way.
You are valuable to us, & your relationship is precious. You are not just a number; therefore, we treat you with the ultimate level of care, respect, compassion, & service.
Your problem is our problem. We help provide simple solutions to sometimes complex protection issues. We aid your restoration after the unexpected. We help you protect what matters to your life: cars, property, assets, & most importantly....your family.
I’ve lived in the Matteson community for six years. I am a proud alumni of Illinois State University. Before coming to Allstate, I worked in corporate management and customer relationships within the insurance industry for fifteen years. I am passionate about educating and helping customers understand different aspects of insurance.
Being involved in our community is very important to me. As a result, I work on weekends as support staff at Mercy Home for Boys & Girls in Chicago. I believe in reaching out to the youth in order to help them build the confidence and skills they need to have successful futures. I am also a member of the Matteson area Chamber of Commerce, Chamber 57. I am a proud member of Kappa Alpha Psi Fraternity, Inc., currently serving on the Board of Directors for the Richton Park Kappa Alpha Alumni Chapter, in addition to serving as the Undergraduate Chapter Advisor for the Kappa Alpha Chapter (Illinois State University).
At the Diamond Insurance Solutions Agency, we believe that life is much more meaningful & fulfilling when one is able to impact the lives of others in a positive & unforgettable way.
You are valuable to us, & your relationship is precious. You are not just a number; therefore, we treat you with the ultimate level of care, respect, compassion, & service.
Your problem is our problem. We help provide simple solutions to sometimes complex protection issues. We aid your restoration after the unexpected. We help you protect what matters to your life: cars, property, assets, & most importantly....your family.
Products we offer:
Auto Insurance in Matteson
Close Auto insurance modalHome Insurance in Matteson
Close Home insurance modalCondo Insurance in Matteson
Close Condo insurance modalRenters Insurance in Matteson
Close Renters insurance modalMotorcycle Insurance in Matteson
Close Motorcycle insurance modalBusiness Insurance in Matteson
Close Business insurance modalLife Insurance in Matteson
Close Life insurance modalATV Insurance in Matteson
Close ATV insurance modalBoat Insurance in Matteson
Close Boat insurance modal
10+
Years of
Experience
Experience
5+
Years in the
Community
Community
Bachelor of Science-Illinois State University
Aglow International Matteson Single Moms - Winter Coat Drive
Heartland Blood Center - Sickle Cell Month Blood Drive
Our team
Charles Tweedle
Office Manager
Hello, my name is Charles Tweedle. I have a bachelor's in Business Marketing from Illinois State University. (Go Red Birds!) I have 7 years of Allstate experience including call center inbound, outbound as well as Allstate's co
Hello, my name is Charles Tweedle. I have a bachelor's in Business Marketing from Illinois State University. (Go Red Birds!) I have 7 years of Allstate experience including call center inbound, outbound as well as Allstate's corporate office working with the Allstate Independent Agencies (AIA) department. When I am not in the office, I enjoy playing chess, discussing philosophy, & watching sports.
Cornell Wiley
Customer Solutions Consultant
I am Cornell. In the fall of 2017, I became a Life Insurance agent where I helped to protect many families from the financial ruin of being unprepared for the inevitable. Now, as a member of Diamond Insurance Solutions, I pride my
I am Cornell. In the fall of 2017, I became a Life Insurance agent where I helped to protect many families from the financial ruin of being unprepared for the inevitable. Now, as a member of Diamond Insurance Solutions, I pride myself on being able to help customers to cover their assets. In my spare time, I moonlight as a licensed barber. I am also Black Belt in Shorin Ryu Karate.
Kimberly Cosey
Customer Solutions Consultant
Kim is customer representative with over ten years of insurance industry experience; including sales, customer service and assisting customers with strategic long and short-term goals. Her goal is to help you create solutions tail
Kim is customer representative with over ten years of insurance industry experience; including sales, customer service and assisting customers with strategic long and short-term goals. Her goal is to help you create solutions tailored to individual needs while maintaining overall customer satisfaction.
She received her undergraduate degree from Illinois State University and master’s degree from Lewis University with a concentration in Organizational Leadership.
In her spare time, she enjoys spending time with her family and friends, binge watching Netflix, volunteering and sitting on the board of the non-for-profit Daughters Delivered by Grace. Kimberly also enjoys writing and is a collaborating author of the cross generational book Grace.
She received her undergraduate degree from Illinois State University and master’s degree from Lewis University with a concentration in Organizational Leadership.
In her spare time, she enjoys spending time with her family and friends, binge watching Netflix, volunteering and sitting on the board of the non-for-profit Daughters Delivered by Grace. Kimberly also enjoys writing and is a collaborating author of the cross generational book Grace.
Our team
Brandon A. Robertson
Agency Owner
Charles Tweedle
Office Manager
Hello, my name is Charles Tweedle. I have a bachelor's in Business Marketing from Illinois State University. (Go Red Birds!) I have 7 years of Allstate experience including call center inbound, outbound as well as Allstate's co
Hello, my name is Charles Tweedle. I have a bachelor's in Business Marketing from Illinois State University. (Go Red Birds!) I have 7 years of Allstate experience including call center inbound, outbound as well as Allstate's corporate office working with the Allstate Independent Agencies (AIA) department. When I am not in the office, I enjoy playing chess, discussing philosophy, & watching sports.
Cornell Wiley
Customer Solutions Consultant
I am Cornell. In the fall of 2017, I became a Life Insurance agent where I helped to protect many families from the financial ruin of being unprepared for the inevitable. Now, as a member of Diamond Insurance Solutions, I pride my
I am Cornell. In the fall of 2017, I became a Life Insurance agent where I helped to protect many families from the financial ruin of being unprepared for the inevitable. Now, as a member of Diamond Insurance Solutions, I pride myself on being able to help customers to cover their assets. In my spare time, I moonlight as a licensed barber. I am also Black Belt in Shorin Ryu Karate.
Kimberly Cosey
Customer Solutions Consultant
Kim is customer representative with over ten years of insurance industry experience; including sales, customer service and assisting customers with strategic long and short-term goals. Her goal is to help you create solutions tail
Kim is customer representative with over ten years of insurance industry experience; including sales, customer service and assisting customers with strategic long and short-term goals. Her goal is to help you create solutions tailored to individual needs while maintaining overall customer satisfaction.
She received her undergraduate degree from Illinois State University and master’s degree from Lewis University with a concentration in Organizational Leadership.
In her spare time, she enjoys spending time with her family and friends, binge watching Netflix, volunteering and sitting on the board of the non-for-profit Daughters Delivered by Grace. Kimberly also enjoys writing and is a collaborating author of the cross generational book Grace.
She received her undergraduate degree from Illinois State University and master’s degree from Lewis University with a concentration in Organizational Leadership.
In her spare time, she enjoys spending time with her family and friends, binge watching Netflix, volunteering and sitting on the board of the non-for-profit Daughters Delivered by Grace. Kimberly also enjoys writing and is a collaborating author of the cross generational book Grace.
Frequently Asked Questions
Monday: 9:00 AM - 6:00 PM
Tuesday: 9:00 AM - 6:00 PM
Wednesday: 9:00 AM - 6:00 PM
Thursday: 9:00 AM - 6:00 PM
Friday: 9:00 AM - 5:00 PM
Saturday: Closed
Sunday: Closed
Tuesday: 9:00 AM - 6:00 PM
Wednesday: 9:00 AM - 6:00 PM
Thursday: 9:00 AM - 6:00 PM
Friday: 9:00 AM - 5:00 PM
Saturday: Closed
Sunday: Closed
Saturday: Closed
Sunday: Closed
Sunday: Closed
No, we do not have text messaging services.
No, we do not provide financial services.
No, this is our only location
Diamond Insurance Solutions, Inc. is insurance licensed in the state(s) of Illinois and Indiana. If you do not reside in the state(s) of Illinois or Indiana, please go to the Find an Agent section on allstate.com to search for another Allstate Agent or Personal Financial Representative.
Based on coverages selected. Subject to terms, conditions, availability & qualifications.
This material is intended for educational purposes only. Auto and homeowners insurance, and other property and casualty insurance products, are available from Allstate Insurance Company, Allstate Indemnity Company, Allstate Property and Casualty Insurance Company and Allstate Fire and Casualty Insurance Company (Home Offices: Northbrook, IL); Allstate New Jersey Insurance Company and Allstate New Jersey Property and Casualty Insurance Company (Home Offices: Bridgewater, NJ); and Allstate County Mutual Insurance Company and Allstate Texas Lloyd's (Home Offices: Irving, TX). Life insurance issued by Allstate Life Insurance Company: Northbrook, IL; and American Heritage Life Insurance Company: Jacksonville, FL. In New York, Allstate Life Insurance Company of New York: Hauppauge, NY.
Based on coverages selected. Subject to terms, conditions, availability & qualifications.
This material is intended for educational purposes only. Auto and homeowners insurance, and other property and casualty insurance products, are available from Allstate Insurance Company, Allstate Indemnity Company, Allstate Property and Casualty Insurance Company and Allstate Fire and Casualty Insurance Company (Home Offices: Northbrook, IL); Allstate New Jersey Insurance Company and Allstate New Jersey Property and Casualty Insurance Company (Home Offices: Bridgewater, NJ); and Allstate County Mutual Insurance Company and Allstate Texas Lloyd's (Home Offices: Irving, TX). Life insurance issued by Allstate Life Insurance Company: Northbrook, IL; and American Heritage Life Insurance Company: Jacksonville, FL. In New York, Allstate Life Insurance Company of New York: Hauppauge, NY.
Diamond Insurance Solutions, Inc., Matteson, IL
Contact
Close contact modalNotice
Close disclaimer modalSelect a Product to Get a QuoteSelect an Insurance Option Below
Close quote modalRequest an Appointment
Close appointment modalChoose a date and time that works best for you, and we’ll do our best to accommodate your schedule.
Month
| Su | Mo | Tu | We | Th | Fr | Sa |
|---|
Go to previous month
Go to next month
I am an Allstate Customer
I would like to discuss the following insurance products:
Please select both a date and time for the appointment.
The time selected has already passed.
Please enter your first and last name when making an appointment.
Please select whether you are an Allstate customer when making an appointment.
Please select which product(s) you would like to discuss.
* All fields are required
Thank you for submitting your
appointment request.
appointment request.
Allstate is committed to protecting and respecting your privacy. The information submitted in this form will not be stored. By clicking submit on this appointment request form, you consent to allow an Allstate agent or agency representative to contact you to confirm your appointment request.
