Derek Gruendemann
Derek Gruendemann at Napleton Buick GMC

Derek Gruendemann

Sales Manager

Napleton Buick GMC

6305 Northwest Hwy
Crystal Lake, IL 60014

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2 Reviews
not yet
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2 Reviews

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Dealership Experience

3 mos

Industry Experience

30 yrs, 7 mos

Languages Spoken

English English

2 Reviews of Derek Gruendemann

April 18, 2026

Dealership Rating
Employee Rating

Wonderful experience. Met Eric when I walked in and the entire process was smooth and convenient. Eric and the team were extremely professional. More

by mh
Sales Price Transparency
Trade-in Experience
Purchase Time
Recommend Dealer
Yes

Other Employees Tagged: Christian Leon, Eric Pedersen

March 19, 2026

Dealership Rating
Employee Rating

Working with Eric and the team was seamless. A very respectful, courteous group! We are very happy with our new car!!! Thank you Eric! More

by Mckbello20
Sales Price Transparency
Trade-in Experience
Purchase Time
Finance Experience
Recommend Dealer
Yes

Other Employees Tagged: Eric Pedersen

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