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Sommer's Buick GMC Subaru
Mequon, WI
1,738 Reviews
Sommer’s Subaru Buick GMC – Where Customers Send Their Friends!
For over 70 years, Sommer’s Automotive has been a trusted name in Southeastern Wisconsin, helping tens of thousands of drivers find and maintain the perfect vehicle. Our commitment to outstanding customer service and community support has made us more than just a dealership—we’re your automotive partner for life.
At Sommer’s, we believe car buying and service should be easy, stress-free, and enjoyable. Whether you’re shopping for a new Subaru, Buick, or GMC, the perfect used vehicle, or looking for expert maintenance, our team is here to provide a straightforward, no-pressure experience.
We’re proud to be where customers send their friends—because trust, integrity, and exceptional service always come first.
Stop by and experience the Sommer’s difference today!
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This rating includes all dealership reviews, with more weight given to recent reviews.
Sales Price Transparency
Service Price Transparency
Trade-in Experience
Purchase Time
Finance Experience
Workmanship
Service Time
Service Communication
Hours
Sales/Showroom
Monday 8:30 AM - 8:00 PM
Tuesday 8:30 AM - 8:00 PM
Wednesday 8:30 AM - 8:00 PM
Thursday 8:30 AM - 8:00 PM
Friday 8:30 AM - 8:00 PM
Saturday 8:30 AM - 5:00 PM
Sunday Closed
Service
Monday 7:00 AM - 6:00 PM
Tuesday 7:00 AM - 6:00 PM
Wednesday 7:00 AM - 7:00 PM
Thursday 7:00 AM - 6:00 PM
Friday 7:00 AM - 6:00 PM
Saturday 8:00 AM - 4:00 PM
Sunday Closed
Parts
Monday 7:00 AM - 6:00 PM
Tuesday 7:00 AM - 6:00 PM
Wednesday 7:00 AM - 7:00 PM
Thursday 7:00 AM - 6:00 PM
Friday 7:00 AM - 6:00 PM
Saturday 8:00 AM - 4:00 PM
Sunday Closed
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Showing 364 service reviews
August 25, 2026
Every one at Sommer’s Subaru is super friendly and professional. I like to get oil change and tire rotation there every six months. And they also offer a free car wash after the service. professional. I like to get oil change and tire rotation there every six months. And they also offer a free car wash after the service. More
by jztseng0622
Employees Worked With
Josh at service
August 21, 2026
Scheduling my vehicle’s maintenance was easy, and the team at Sommer’s was very friendly, helpful, and demonstrated great communication to keep me informed during my service appointment. team at Sommer’s was very friendly, helpful, and demonstrated great communication to keep me informed during my service appointment. More
by Josh Rittberg
Employees Worked With
Stewart Dahlman
August 10, 2026
This started on the negative side when I left my number with the service desk and never got a call back over the next week and a half. I reconnected, scheduled an appointment and everything was great. John with the service desk and never got a call back over the next week and a half. I reconnected, scheduled an appointment and everything was great. John S. took care of my needs as I had 60,000 mile inspections due as well. The 60,000 mile recommedations were handled and my car is running like new. More
by gascannell
Employees Worked With
John S. (service)
