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Welcome to
O'Neil Buick GMC in Warminster, PA

At O'Neil Buick GMC, we're a proud family-owned and -operated Buick and GMC dealership in Warminster, and we're committed to providing you with the absolute best car-buying or -servicing experience. We take pride in delivering high-quality Buick and GMC vehicles along with exceptional customer service.

Our dealership hosts an expansive range of both new and pre-owned Buick and GMC vehicles, including the latest EVs you have your eye on. Whether you're looking for a powerful new Sierra truck, a sleek and comfortable Enclave SUV or a modern electric car for a greener ride, we have you covered.

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Buy a New or Used GMC Near Me

When you want to upgrade to a new GMC truck or SUV, our team is standing by to assist. Come test-drive a new Buick Encore GX or discover the first-class GMC Acadia features. Need something for tough jobs? Buy a new or used GMC Sierra 1500. We also have used cars for sale of other top makes, so be sure to speak with our Buick and GMC financing team about the auto loans and lease offers that are available.

We'll be happy to show you the different GMC and Buick specials that you can take advantage of, so come discover how you can save at our dealership!



GM Service & Parts in Warminster, PA

At O'Neil Buick GMC, our dedication to your vehicle doesn't end when you drive off the lot. Our seasoned GM service team is equipped to help maintain your Buick or GMC for miles and miles. Whether it's regular maintenance like a Buick oil change or comprehensive repairs, we’ve got you covered -- plus, we offer convenient loaner vehicles for lengthier fixes.

Our Buick and GMC parts department also stocks genuine GM parts, including those specially designed for EVs, ensuring your vehicle gets only the best components during services or repairs.



Visit O'Neil Buick GMC Today

Conveniently located in Eastern Pennsylvania and easy to get to from Southampton, Warrington and beyond, O'Neil Buick GMC invites you to visit and see what we have to offer. Come experience how we combine a family-friendly atmosphere with a comprehensive selection of vehicles and exceptional service.

Embrace the O'Neil Buick GMC difference today!

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Address

869 W. Street Road, Warminster, PA 18974

Sales Hours

Monday 9:00AM - 8:00PM
Tuesday 9:00AM - 8:00PM
Wednesday 9:00AM - 8:00PM
Thursday 9:00AM - 8:00PM
Friday 9:00AM - 8:00PM
Saturday 9:00AM - 5:00PM
Sunday Closed