Sommer's Buick GMC
  • Sales:866 791-8437
  • Service:866 617-7421
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Customer reviews

4.8 / 5

Dealer Rating

Our average rating from our customers is

4.8 / 5

Read Reviews

  • Acadia Customer reviews

    Josh and Gary extremely helpful.


    2014 GMC Acadia
  • Enclave Customer reviews

    Gary is the best service mgr.


    2013 Buick Enclave
  • LaCrosse Customer reviews

    safety recall was handled correctly and timely. When I first called, they said they could get in the service department anytime I wanted. I have been waiting for another recall on my Chevy Express V


    2014 Buick LaCrosse
  • Savana Customer reviews

    My 2002 GMC Savanna is in great shape and we plan to keep it for a long time. This summer we took the van to Explorer Van Conversion Co to have new ground affects installed on the van and then we took


  • Cobalt Customer reviews

    Everything was handled great by the staff. Completely satisfied with my visit.


  • Riviera Customer reviews

    I have been having my cars serviced at Sommer's since 1986. On my way to work early Mon., Aug. 18, I was experiencing brake problems w/my '97 Riviera. I took it asap to Sommer's without an appointme


  • LaCrosse Customer reviews

    Very friendly service personnel. Enjoyed the cookies and drink in the waiting room. Overall, excellent experience.


    2013 Buick LaCrosse
  • Enclave Customer reviews

    scheduled appointment in 2 days at time I needed. Arrived early and was serviced right away without having to wait. Had oil change. Would have been nice if excess oil was wiped off underside so it did


    2014 Buick Enclave
  • Verano Customer reviews

    Service is always exceptional and given with a warm welcome and smile.


    2013 Buick Verano
  • Regal Customer reviews

    Great service, fast & prompt. They knew who I was when I stepped out of my car! I needed an estimate for some body work & they even handled that for me. I'll be making that appt soon! Thank you for th


    2011 Buick Regal


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Sommer's Buick GMC - Your Trusted Milwaukee Dealership in Mequon

Welcome to Sommer's Buick GMC serving the greater Milwaukee and Grafton area from Mequon, WI! For over 60 years, we have provided unparalleled customer service to every Milwaukee Buick and GMC customer that has trusted our auto dealership with their automobile needs. We invite those from Grafton and beyond to experience the Sommer's Buick GMC difference! Our low pricing policy and great customer service has allowed our Mequon Buick and GMC dealership to grow as one of the largest dealers in the Midwest. With so many benefits to shopping at Sommer's Buick GMC, you'll find value and satisfaction guaranteed. Our GMC dealer near Milwaukee is sure to have what you need today!


Serving Milwaukee, WI GMC and Buick Customers

Whether you're searching for a new Buick car, crossover or GMC truck, Sommer's Buick GMC in Mequon has you covered! Visit our GMC dealer near Milwaukee and test drive a new Terrain crossover SUV, professional grade Sierra truck, or an award-winning LaCrosse sedan. Conveniently located at 7211 W Mequon Rd. Mequon, WI 53092, we proudly serve Milwaukee Buick and GMC customers!

Used Car Dealer Serving Milwaukee GMC Customers

As a used dealer near Milwaukee, Sommer's Buick GMC has an unmatched inventory of pre-owned vehicles. This includes used GMC and Buick vehicles as well! Don't hesitate to contact us for more information about our affordable financing options on any used vehicle at our Mequon GMC dealer. Milwaukee customers can find the perfect pre-owned truck or crossover at Sommer's Buick GMC!

Milwaukee GM Parts and Service at Sommer's Buick GMC

Milwaukee drivers can bring their vehicle to Sommer's Buick GMC for superior service. The service center is staffed with GM factory trained and certified technicians that have the experience and equipment needed to keep your vehicle running its best. With the latest diagnostic equipment and OEM provided tools and information, you can trust Sommer's Buick GMC with your next maintenance or service appointment. Our Mequon parts department can also order that hard to find factory replacement part you've been searching for. Your needs and expectations will always be exceeded here at Sommer's Buick GMC in Mequon! We are your GMC dealer near %DEALER_GEO_ONE!

Service | Parts Order Form | GM Accessories

Buick: Enclave | Encore | LaCrosse | Regal | Verano
GMC: Acadia | Savana Cargo Van | Savana Commercial Cutaway | Savana Passenger | Sierra 1500
Sierra 2500HD | Sierra 3500HD | Terrain | Yukon | Yukon XL