Derek Gruendemann
Derek Gruendemann at Napleton Buick GMC

Derek Gruendemann

Sales Manager

Napleton Buick GMC

6305 Northwest Hwy
Crystal Lake, IL 60014

not yet
rated
3 Reviews
not yet
rated

3 Reviews

Write a Review

Dealership Experience

4 mos

Industry Experience

30 yrs, 8 mos

Languages Spoken

English English

3 Reviews of Derek Gruendemann

May 09, 2026

Dealership Rating
Employee Rating

Eric went above and beyond to get me what I was looking for. I would totally recommend this dealership to anyone due to the customer service.Everyone else was professional and pleasant to interact with as More

by Ed A.
Sales Price Transparency
Trade-in Experience
Purchase Time
Finance Experience
Recommend Dealer
Yes

Other Employees Tagged: Christian Leon, Eric Pedersen

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

Dealership Inventory (167 Vehicles)

new 2026 Buick Envision car, priced at $48,329
2026 Buick Envision
new
Ebony Twilight Metallic exterior
Automatic
All-wheel Drive
used 2024 Chevrolet Silverado 2500 car, priced at $63,495
2024 Chevrolet Silverado 2500
used
Black exterior
Automatic
Four-wheel Drive
new 2026 Buick Envista car, priced at $26,959
2026 Buick Envista
new
Moonstone Gray Metallic exterior
Automatic
Front-wheel Drive
used 2020 GMC Yukon car, priced at $28,995
2020 GMC Yukon
used
Onyx Black exterior
Automatic
Four-wheel Drive
new 2025 GMC Canyon car, priced at $46,604
2025 GMC Canyon
new
Onyx Black exterior
Automatic
Four-wheel Drive
new 2026 GMC Sierra 2500 car, priced at $85,260
2026 GMC Sierra 2500
new
Summit White exterior
Automatic
Four-wheel Drive