

O'Meara Advantage
2 Year Powertrain Warranty
1 Year Complimentary Oil Changes
1 Year Roadside Assistance


Value Trade-In

Welcome to O'Meara Buick GMC - Denver's Best
Our dealership is a great solution for any auto buyer, looking for a New Buick GMC or Used Vehicles, Cars, Trucks, and SUVs. All you have to do is drop by our Thornton Buick GMC showroom and pick what suits your needs the best, and our qualified and friendly staff will take care of the rest. We look after all your automotive needs, right from New and Used Vehicle Sales, Auto Service and Repair, GM Auto Parts, accessories, tires, as well as Automotive Financing options. Our GMC and Buick dealership is very conveniently located in Thornton near Westminster, CO. So, what are you waiting for? All Denver area Buick and GMC drivers can make the short drive to our dealership today in Thornton CO!
BUICK AND GMC AUTO SERVICE AND PARTS CENTER IN THORNTON
We offer parts, service, and auto body shop at O'Meara Buick GMC for your convenience. Our GM-certified technicians provide superior maintenance for your GM vehicles and all other makes and models and stand by their work. Thornton drivers will be glad to learn that keeping their automobile running well shouldn't be complicated or difficult. This is why our Certified GM service and auto parts center is a perfect option for Denver Buick and GMC drivers looking for the best in vehicle maintenance and repairs.
We look forward to meeting you and serving you in person at O’Meara Buick GMC / the employees at look forward to your visit at our dealership. Give us a call or use our step by step Driving Directions for driving instructions from Denver, Thornton, Aurora, Golden, Littleton, Longmont, Henderson, Lone Tree, Colorado Springs, Boulder, Brighton, Pueblo, Loveland, and more.
Our Reviews
Good service, good place, fast service, nice people , I will recommend to my family and friends
We love this service drive! Thank you for the awesome service. And great turnaround Cheers
Everything good,nice customer attention,good time service,good Information about our truck. Nice attention
Great service. Kurt was very helpful. Very happy with Bob, JC, and Kurt’s professionalism. Everyone made sure we got taken care and we left happily with our new vechile
Great experience!! Everyone was so nice and upfront. So easy to work with! I will be buying all my cars here!
Great customer service and knowledgeable staff keep up the good work and I will recommend you guys to everybody thank you for your hard work
After looking for quite sometime and being out in the sun all day looking for a truck it was our last stop for the day. It was a fast and easy process despite the craziness of today’s automobile market. They were about to close and Leo was in no rush and helped us that same night to find what we wanted. This was also Thanks Leo!
Service was awesome👌,.
Thank you so much for your quick turnaround and speedy diagnosis. Always l appreciated. Cheers
Very helpful and knowledgeable, went above and beyond to help with repair. I would recommend this dealership to friends and family. THANK YOU SO VERY MUCH!
I’ll never buy from anyone else! Thank you guys for everything you did for our family!!!
They’re absolutely the best dealership. So kind AND honest! I will never go anywhere else!!
The service provided by Omeara is very professional. The staff is friendly and very competent.
When I made the appointment they told me it would take a couple of days for the 90K mileage check up. They had my car back to me after one day, everything was quick and easy. Annissa was knowledgeable and extremely nice.
Tommie was very kind, jovial, and made the experience pleasurable. The process went very smoothly.
This dealer rocks! Eric and Anissa are the best! Will never use another Gm dealer.
Been taking my truck there since I owned it never had a bad experience! Very professional.
This dealer continues to give great service and quick turn around. Thank you so much
Very amazing and knowledgeable staff!! Quick and easy to find a new vehicle!! A very awesome experience!
This dealer is awesome! Anissa Eric and the team are amazing. Not a ton of communication needed just quick turnaround !
It was my first time taking my car in for a service. I took my car in to get an oil change. Eric and the other guy that helped me were very nice and friendly. The waiting area was pleasant and had snacks. The service took about an hour and I was able to get some work done while I waited. I was in and out fairly quickly. Will most likely come back for another service.
Quick and efficient. Promised return time accurate. Excellent and fair pricing. Will return again. Thanks
I called and left two or three messages to set up an appointment and didn’t receive a return call. I called and finally got to talk to a service person and every thing went quick after that. I suggest returning calls would make it much easier.
We have a fleet account and this dealer continues to turn our cars around quickly! Thank you !
Great experience