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Sommer's Buick GMC Subaru
Mequon, WI
1,758 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 1,758 reviews
August 03, 2026
Service department gets you in (often same day). The wait is quick and the staff is super friendly. They do a great check and keep you up to date with other improvements you will need soon. Excellen The wait is quick and the staff is super friendly. They do a great check and keep you up to date with other improvements you will need soon. Excellent dealership! More
by danderson1055
Employees Worked With
July 31, 2026
I've been a customer of Sommer's since 2017 and am currently in my 4th subbie. All have been great cars and the service department is top shelf. currently in my 4th subbie. All have been great cars and the service department is top shelf. More
by jaybecks
July 13, 2026
Everything went well. Service waiting area is comfortable. I wish you at least had soda and snack machineds to offer us some options while we wait. Service waiting area is comfortable. I wish you at least had soda and snack machineds to offer us some options while we wait. More
by larryb
Employees Worked With
Sara
July 10, 2026
Adam & Rio and staff are excellent! Service completed on time all maintenance skillfully completed. Thank You. Service completed on time all maintenance skillfully completed. Thank You. More
by primatetoo
July 08, 2026
Service is always top-notch. Customer Service personnel are courteous and helpful. It's a pleasant experience coming to this dealership for car care. Customer Service personnel are courteous and helpful. It's a pleasant experience coming to this dealership for car care. More
by doofless1945
Employees Worked With
John
July 06, 2026
Happy with the service & the vehicle I purchased! Good selection of vehicles to consider. Thanks! Good selection of vehicles to consider. Thanks! More
by Char
Employees Worked With
