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Learn More About Quality Cadillac, Your Trusted Dealership in Alton

At Quality Cadillac, we believe a luxury dealership should feel like one from the moment you arrive. Serving drivers across Alton, IL, and the greater St. Louis metro, our dealership has built its reputation on genuine customer care, transparent dealings, and a buying experience that respects your time and your intelligence. Whether you’re visiting from St. Louis, Edwardsville, Collinsville, or Granite City, you will find the same level of professionalism and attention at every interaction with our team.

Open Today! Service: 7am-4:30pm

 
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Who We Are

Quality Cadillac is your dedicated Cadillac dealer in southwestern Illinois, stocking a comprehensive selection of new, certified pre-owned, and pre-owned vehicles across one of the most exciting luxury lineups on the market today. From the family-friendly XT5 and track-ready Escalade-V to the all-electric LYRIQ, the new OPTIQ, and the refined CT5 sedan, our inventory represents the full breadth of what Cadillac has to offer in 2026. Our knowledgeable sales team takes the time to understand your priorities, walk you through every trim level and technology feature, and connect you with the right vehicle at the right terms, with zero pressure throughout.

A Buying Experience That Reflects the Brand

Cadillac has spent the last several years repositioning itself as a genuine world-class luxury brand, and we take that seriously at the dealership level. Our no-pressure sales environment means our team is focused entirely on finding the right vehicle for your lifestyle, not moving inventory on a deadline. You can browse our new inventory and pre-owned inventory online, check our current new vehicle specials, and use our trade-in tool to get a market-based estimate on your current vehicle before stepping foot in our showroom. When you are ready to move forward, our finance center presents loan and lease options clearly and transparently so you can make a confident decision on your own terms.

Cadillac-Certified Service That Goes the Distance

Purchasing a Cadillac is an investment, and protecting that investment requires technicians who know the platform inside and out. Our factory-trained, Cadillac-certified service team handles everything from routine oil changes, brake service, and tire service to complex drivetrain, electrical, and EV system repairs, using genuine Cadillac parts sourced through our on-site parts center. Our service advisors communicate clearly, provide transparent estimates before any work begins, and treat every vehicle with the care it deserves. Learn why drivers across the St. Louis metro trust Quality Cadillac for their service needs, check our current service and parts specials, and schedule your appointment online at your convenience.

Why Choose Us?

Drivers across Alton, St. Louis, Edwardsville, Collinsville, and Granite City choose Quality Cadillac because we deliver on our promises. Our inventory covers the full Cadillac lineup including the brand’s expanding EV portfolio, our finance team works transparently to find terms that fit your budget, and our certified service department keeps your vehicle performing at the level you expect from a world-class luxury brand. The name Quality is not just part of our dealership title. It is the standard we hold ourselves to every day. Contact us with any questions, browse our current inventory, or stop by our Alton showroom and experience the Quality Cadillac difference for yourself.

New Vehicles
Used Vehicles
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Phone Numbers:Sales Hours:
  • Mon, Fri8:30 AM - 7:00 PM
  • Tue - Thu8:30 AM - 6:00 PM
  • Sat8:30 AM - 4:30 PM
  • SunClosed
Service Hours:
  • Mon - Wed, Fri7:00 AM - 4:30 PM
  • Thu7:00 PM - 4:30 PM
  • Sat - SunClosed
Parts Hours:
  • Mon - Fri8:00 AM - 4:30 PM
  • Sat - SunClosed

Alton drivers can explore the new Cadillac line-up today at Quality Cadillac.

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1620 Homer Adams Pkwy, Alton, IL, 62002
Quality Cadillac 38.92027, -90.16714.