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The History of O'Meara
O'Meara has been serving Thornton, Northglenn and the rest of Colorado since 1913.

Welcome to O'Meara GMC - Denver's Best
Our dealership is a great solution for any auto buyer, looking for a New GMC or Used Vehicles, Cars, Trucks, and SUVs. All you have to do is drop by our Thornton 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 dealership is very conveniently located in Thornton near Westminster, CO. So, what are you waiting for? All Denver area GMC drivers can make the short drive to our dealership today in Thornton CO!
GMC AUTO SERVICE AND PARTS CENTER IN THORNTON
We offer parts, service, and auto body shop at O'Meara 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 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 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
I had a great experience at OMEARA . Kurt was great help and really nice guy. Mike and Kurt did a great job.
I always take my vehicle in for regular oil change at the Dealership. They know more about my Buick Encore than anyone else.
Replace my battery
I had a wonderful experience purchasing a used vehicle. The process was stress free and pleasant. Octavio was very thorough and knowledgeable. He was able to find me a vehicle that suited my needs.
Matt, Jason and Gray were all awesome to work with super friendly. Everything just seemed to flow smoothly. If your in the market to buy or lease a vehicle I would recommend going to O’Meara GMC and working with Matt, Jason and Gray.
Nice dealership. Purchasing took longer than expected to purchase. Only one finance person. Purchased used so I know it’s “as is” but I was shown the tailgate speakers it had assuming they worked. They don’t. Someone there had to have known they didn’t. Wish someone would have said something.
I came from out of state to pick up my truck from O’Meara GMC . The sale person(Erick) was very professional and did a great job on keeping me updated throughout the whole process. The experience upon arrival was wonderful .
They finally diagnose the problem, when nobody else could figure it out and solved the problem very inexpensively
Erik was fantastic. Patient, kind, and never pressured me. 10/10 service. i would recommend Erik and the O'meara group to anyone looking for a great vehicle at a fair price with excellent service.
Eric was a pleasure to work with and he made it easy. We flew into Denver to get the great deal we found at Omeara GMC. We love our truck! This place is highly recommended.
It was a pleasure working with Erik! He was very thorough and profesional. He was able to show us a few different options that best suited us.
All customers service they are very nice. very helpful and I will definitely buy car from this place dealer on next time also
Enjoyed the service and no pressure tactics they provided. They were also pet friendly and that was huge for me.
Matt Gecko hands down the best auto sales person I've had the pleasure of doing business with. All employees I had interactions with were polite, knowledgeable and extremely friendly. I felt zero pressure or the usual sales mumbo jumbo. I will recommend O'Meara GMC to all my family and friends.
Our experience with Gilbert and the staff was first, five star. Ritz Carlton level of service.
The Audi A4 that I was interested had sold before I arrived at the dealership. I decided to purchase an Audi A6 that they did have. The service that I received from Joe and Greg was outstanding. They truly care about their customers, and they will deal when it comes to the final price. What Iliked the most is that it is a family owned business
Went in for an oil change and tire rotation. Dropped off the truck in the morning and had it back in a few hours. Quick and easy. The staff was friendly and easy to work with.
Erik was fantastic. Super professional and courteous. He made sure I found the right vehicle and made me feel like family.
Great customer service from Steven Ly he help me answer my questions on my vehicle checking my status, been calling several times and no one had reach out to me but he answered my calls he had transferred me to services and came back to him so ended up helping me and taking his time.
oil change and tire rotation
They have been servicing my pick up for 10 years now, great people and great customer service.
All went well and on time
We went looking for a vehicle with very specific needs and some luxury wants. Joe was very helpful and actually listened to everything. Although things took time to process, Joe asked very specific questions showed us multiple vehicles meeting our needs in various price ranges. Made the process alot less stressful. Great job to Joe and the rest of the team.
We started with a phone call. The sales guy (Erik Chavez) took my information and what I was looking for. He found the truck I wanted and was willing to put numbers together and send over paperwork so we didn't have to come into the dealership. We submitted our application and headed over for a test drive. While we waited for out financing to be approved we test drove the truck and loved it. We were offered snacks and water while we waited. Everyone there was really friendly and kept us up to date on what was happening. Once out finance was approved the whole process was very easy and fast.
Octavio was extremely helpful throughout the process of purchasing our vehicle! He helped resolve a number of issues we ran into with the financing department and even filled the tank with gas before we too possession! I recommend you seek him out when looking to purchase a vehicle.