New and used 2026 GMC Yukon for sale near Algonquin, IL

Great customer service, was wonderful working with Jessica and Moe. I will be back again.

Lamia was Amazing!! She was so friendly, personable and I walked out with the car I wanted!!!

Buying my Camaro from Castle Chevrolet in McHenry was an outstanding experience from start to finish. I worked with Eric Loredo, who set the tone by doing a full virtual walk around and video of the car before I arrived, answering all my questions in real time. When my wife and I landed at ORD, the car was spotless and ready to go. Finance Manager Mike Lazzara had all documents sent ahead so I could DocuSign, making the delivery quick and smooth. Sales Manager Matt Knudson, GSM Jerry Spanier, and Andrew Sytsma (who wasn’t my salesman but still took time to chat and share product knowledge) all played a part in making this one of the easiest purchases I’ve ever had. The team knew my previous car was totaled in a tornado, and they went above and beyond to make this out-of-state transaction simple and stress-free. Eric and the entire Castle team reminded me that buying a car doesn’t have to be a battle. I would absolutely buy from them again.

My salesman Esad was great. He was very knowledgeable. Everyone was very friendly and helpful.

Pricing for fantastic! Sales person, Jamie, was pleasant and knowledgeable. They were very accommodating and properly treated us as a valuable customer!

Kevin, sales, and Brad, finance, did a great job. Kevin helped us get the vehicle that we wanted and Brad helped us quickly move thru the financial part of process. Thanks to both. Frank Knoll

Most pleasant waiting room anywhere and the friendliest service people.The mechanics always attempt to fix problems before they start. Also wait time ia always fair.

Very smooth experience. Seann is an excellent young salesman. Darien will do anything to work with you. Erick, the manager is very accommodating. A++++ dealership.

Thank you to the service team for your getting me all set for my roadtrip!

My first experience at this dealership will definitely bring me back. We are so happy with our purchased! We had Alex Alverio from Sales, he was very professional & helpful, has awesome customer service & we highly recommend Alex. Thank you so much and keep it up!

I have brought my vehicle in for every oil change I have needed. Always courteous and professional, my car gets a diagnostic check every time and is freshly washed. I like that the Service Department send out coupons, and making an appointment is easy online or with a phone call.

Very professional, excellent communication Friendly staff, and had the vehicle we wanted, would deal with them again

We had an incredibly smooth and pleasant experience at this dealership from beginning to end. The entire process was seamless from start to finish. Every staff member we interacted with was helpful, courteous and professional. Buying a vehicle from Seann Omara was particularly wonderful— he is knowledgeable, helpful, and genuinely committed to making sure we got the best deal possible. We left very pleased and would happily recommend Napleton Buick GMC to others!

Todd was very helpful and made sure my car was pulled inside when leaving as it was very slippery outside

Amazing as always! Paul and his team always take care of me and the process is efficient.

Excellent service Professional service Quick service Polite customer service Excellent customer communication Very detailed repairs

Gracias a Vanessa gallardo por ayudarme a mí y an mis hijos a conseguir mi pick up o como le dice mi hijo my “mamalona“ !

Great staff and very good deals on new vehicles. Quick, friendly and very helpful. I would recommend if your looking for a great deal check with these guys first. They will get you that Great deal others can't.

As always, service and service reps were great-wonderful dealership and service department?have purchased cars from dealer for many, many years and will continue to do so.