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Alex Decker
Alex Decker at Diamond Buick GMC of Alexandria

Alex Decker

Sales

Diamond Buick GMC of Alexandria

5803 State Hwy 29 South
Alexandria, MN 56308

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4.8
12 Reviews
4.8

12 Reviews

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12 Reviews of Alex Decker

June 21, 2026

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Tim sold us our new GMC and helped us with all of our questions, great guy to work with!! More

by jaymeanderson2002
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Recommend Dealer
Yes

Other Employees Tagged: Tim Pederson

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June 21, 2026

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Knowledgable and friendly! Made the deal and got us out fast! Thanks for a great sale! More

by markwangerin
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Yes

Other Employees Tagged: Jasen Wise

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May 30, 2026

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Diamond GMC was extremely easy to deal with and made the truck purchasing experience, quick and fun More

by argutzmer
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Recommend Dealer
Yes

Other Employees Tagged: Ashley Knauf, Michalene Martin, Tim Pederson, Ian Getz

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May 07, 2026

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Quick, efficient, polite, all come to mind with our vehicle purchase and the staff we interacted with. Would recommend. More

by jprochniak
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Recommend Dealer
Yes

Other Employees Tagged: Corey -Finance

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May 29, 2026

Diamond Buick GMC of Alexandria responded

Thank you for your 5-Star review! And also for your kind words! We're happy we were able to help you with your purchase. Enjoy your new ride!

April 24, 2026

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Friendly, nice vehicle selection. Our salesman Alex was very helpful. Would not hesitate buying again from here. More

by evbiegs
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Yes
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Apr 28, 2026

Diamond Buick GMC of Alexandria responded

Thank you for your 5-Star review! We're happy to hear Alex did a great job and was helpful in your search. He goes above and beyond for his customers and truly cares about finding the right fit for you!

April 19, 2026

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Dealership employees are friendly, professional and knowledgeable. They didn’t try to push any particular vehicle or accessories. More

by bjodden50
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Purchase Time
Finance Experience
Recommend Dealer
Yes

Other Employees Tagged: Ashley Knauf, Michalene Martin, Tim Pederson, Ian Getz, Jasen Wise

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Apr 21, 2026

Diamond Buick GMC of Alexandria responded

Thank you for your 5-Star review! At Diamond, we want to find the RIGHT vehicle for you and to fit your lifestyle, not just any vehicle. When you're happy, we are happy! Enjoy your new Buick!

April 08, 2026

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Every one working there was very responsive to my needs and questions. Very friendly staff and helpful. More

by lawrenceruether
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Recommend Dealer
Yes

Other Employees Tagged: Michalene Martin, Ian Getz

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Apr 21, 2026

Diamond Buick GMC of Alexandria responded

Thank you for your review!

April 07, 2026

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Great customer service both in the sales and service departments. They made our expirance very pleasant. More

by LILTRACERS
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Yes
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Apr 21, 2026

Diamond Buick GMC of Alexandria responded

Thank you for your 5-Star review! We're glad to hear you had a great experience with not only sales, but service as well! Enjoy your new ride!

March 30, 2026

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Best Service department in the business. The entire staff are friendly and they save you money when they can. Very transparent and professional More

by gritcoachwise
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Workmanship
Service Time
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Recommend Dealer
Yes

Other Employees Tagged: Ashley Knauf, Michalene Martin, Tim Pederson, Ian Getz, Jasen Wise , Jasen

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Mar 31, 2026

Diamond Buick GMC of Alexandria responded

Thank you for your 5-Star review, Coach! At Diamond, we strive to go above and beyond for all of our customers. You deserve the best experience and nothing less.

March 30, 2026

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I discovered that what I thought was a problem was not a problem. Everything is good! More

by Shawn Brown
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Recommend Dealer
Yes
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Mar 31, 2026

Diamond Buick GMC of Alexandria responded

Thank you for your 5-Star review, Shawn!

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