Buick SUV Service | Connecticut Buick Dealership | O'Neill's Chevrolet Buick. As reliable as Buick Crossovers are, they’re not indestructible, so sooner or later you’ll have to get them in the shop for some maintenance work, or even proper repairs. When that happens, there isn’t a better place on Earth to go to than right here at O’Neill’s Chevrolet Buick in Avon Connecticut Our shop specializes in fixing Buick Crossover SUVs, namely the Encore, the Enclave, and the Envision. We understood a long time ago that focusing on one or two car manufacturers and limiting our scope would give us many competitive advantages over our competition. More importantly, it helps us provide exceptional services for our customers, some of which can’t be duplicated anywhere else. When you bring your Buick crossover SUV to O’Neill’s Chevrolet Buick In Avon you can be sure you’ll get: 1. Fast repairs. 2. 3. There's simply no better service center to bring your Buick SUV to than ours.