Google Reviews
Taishya Adams

★★★★★
3 weeks ago
Exceptional service from Joe and Julian!! I’ve been coming to Big O Tires for over a decade. Their service team keeps raising the bar making sure I’m ready for the road!!
Cayley Byrne

★★★★★
2 months ago
I found a screw in one of my tires and they fixed it within a couple hours of dropping it off. On top of that, they didn’t charge me for fixing it! D at the front desk also provided great, efficient service and I was able to drop off my car super quickly as a walk in.
oscar torres

★★★★★
a month ago
The service is top notch. Brian was super helpful and took care of all my needs. Super recommend!
Jaime Alcala

★★★★★
5 months ago
Review from 10/17. I had a popped tire and I went to see if it could be fixed. Spoke with Brian who was polite and helpful, and helped me with explaining my issue with the tire and the best next options. In the end my tire had to be changed but the team helped me get it fixed and changed all on the same day. Best service and it all took just 30-40 mins, which to me was good and did not have to rely on my spare for the weekend.
Brooklyn Smith

★★★★★
5 months ago
Somehow, I’ve managed to end up with two flats in the past three months. Today was lucky flat #2, courtesy of a Big O nail sticking out of my tire. I was nervous it was too close to the sidewall to patch, but the team at Big O Tires said they’d take a look and see what they could do. While I waited, I asked for quotes on new tires since I knew my luck (and tread) was running out. They gave me a few clear, upfront options, explaining the price and durability of each. Naturally, I pulled out my phone to double-check online, and found the exact tires a few bucks cheaper elsewhere. I showed them, and without a hint of pushback, they matched the price on the spot - no haggling, no drama, just done. I didn’t even have an appointment. Yet somehow, in just a couple of hours, they assessed my flat, gave me quotes, let me price-compare, and installed my brand-new tires. That kind of efficiency and honesty speaks for itself. Do I want to be back anytime soon? No. But knowing my luck, when another flat inevitably finds me, you’ll know exactly where to find me too - back at Big O Tires.
Diego Lupercio

★★
☆☆☆
2 months ago
I used to be a mechanic a decade ago, technology was limited and not every shop had it, even like that we always seek excellence in our service. Every time I bring any of my vehicles to this location, my truck is not being repaired correctly, either the TPS sensors are messed up or not reset it, the oil change light was not reset, or the flat tire was repaired but still not inflated accordingly, fix one problem but create another, is not only about the lack of quality is about the time it consumes on my days when I bring my vehicles over, waiting for them to call you and notify your vehicle is ready, things like that make a big difference. I already gave them the chances to address the issues hoping it will be different every time, but for my surprise is always the same, I always ended up resetting things or jumping up vehicles due to a bad installation. Nice location, great front desk service, very bad mechanical work.
Eric Martin

★★★★★
2 months ago
Big O Tires is now our families exclusive destination. We will not go elsewhere. Reminds me of the good O days when you got a full service fill up and they walked around to make sure you didn’t miss any fluid checks. I didn’t ask, they just did. It’s old school like service, we’re going back to the 50’s here. And quite often on the fly. I was already in town and could hear my valve stem leaking. I called, they said swing on in and we handle it. Not take a look at it, no, we will handle it. Now that’s what customers wanna hear. The level of dedication, and commitment, to ensuring you’re cared for is definitely first-rate at this Valmont location. It’s like second nature for these guys. It started with an alignment on one of our other trucks. Then Leaky valve stems on our plow truck, from a fly by night shotty repair shop in Boulder we will never go back to. To getting it handled in less than one hour, in the fly. The men working in this particular shop appear to have a great time working here, always smiles, and laughs, which means their moral is high. And it’s showing in their work. We love this place, now the entire family has made this our exclusive destination. They certainly earned it. So Thank you Big O Tires, you care, and it shows.
John Ingram

★★★★★
5 months ago
Nick is a skilled and detailed technician taking his time to remedy previous issues related to my last oil change. He (and the shop) identified and corrected three issues related to the last oil service I had completed and took the time to show me on my vehicle what the issue was. They quickly resolved the issue with quality parts. This is exactly the type of service I look for and expect and will definitely recommend Nick and this shop for maintenance and service.
anza grace

★★★★★
3 months ago
Our local Big O is amazing! I got a flat tire on a snowy day and they squeezed me in the same day, had my car fixed within 30 minutes, and did it with a smile! So grateful and will be coming back many more times!
Yolanda Lucas

★★★★★
2 months ago
Awesome experience. I had a slow leak on one of my wheels, in snowy cold day! I expected to have to wait for hours, if not days as now is time for everybody to be changing/fixing their wheels .... Well I was surprused Immediate service, fast repair. And very kind people working there Loved it Thank you!!
Devin Effinger

★★★★★
3 months ago
I cannot begin to express my gratitude for the service I received. I needed an unusual set of snow tires in short order, and D was able to get the tires ordered, delivered to the shop, and installed same day. He was punctual and communicative. He kept me in the know throughout the day. He is an absolute asset to the company and as a result of his service, we will look to Big O for all our tire needs moving forward. Thank you.
Nick

★★★★★
a month ago
Great guys. Joey and Adrian were very helpful. Picked up a bolt in my new truck, took care of it no charge. Gotta love good service with how rare it is these days. Highly recommend these guys!
Rebekah Jones

★★★★★
Edited 2 months ago
I was back at Big O Tires Boulder for an oil change and tire rotation last week. As always D and staff provided great timely service at a great price! I had an issue with a part needing to be replaced on my car in December. D was able to access the issue, order the part and quickly get it installed. D and his staff always provide great prompt and helpful service.
Sarah U

★★★★★
a month ago
I’ve had a couple of issues with the undercarriage of my car & these guys have always been incredibly helpful and fixed it up immediately. They also got me fixed up with a new battery quickly, efficiency and cost effectively. Highly recommended!
zhiyan tong

★★★★★
8 months ago
First time in Denver head to National Rocky Mountain Park~ we had a flat tire in the middle of trip and we have to stop by here to get tire services ~ we called around are all more than 1 hr services, but Big O is the one that we stop by first time. The lady heard we are visitor and our plan ~ their shop expressed our service and give us a free tire repair ~ we feel so welcome for the city and kind hospitality and services. So thankful that we met Big O Tires!
A Google User

★★★★★
2 weeks ago
I got a flat tire today and Big O Tires were such a great help! Thank you to Joe and Dylan for providing exceptional, speedy service that turned my inconvenience into a relief. Definitely recommend!!
Emery Poulsen

★★★★★
3 months ago
The guys at Big O Tires are always super friendly and helpful. I trust their judgment and have never felt like they're trying to sell me anything I don't need. Making an appointment online is super easy and they're always very timely with the service. I dropped my car off at 9 am and asked to have it back around noon, if possible. I was told they would try, but 12:30 or 1 pm was more likely, which I was totally fine with. I got a call at 11:30 saying my car was ready! I recommend Big O to anyone who asks.
Sydney Calhoun

★★★★★
3 months ago
Big O Tires in Boulder completely took care of me! I stopped in for an oil change and tire rotation, and the whole experience was smooth from start to finish. Everyone was friendly and professional, and they got me in and out so fast. A special shout-out to D, the manager — he was awesome! Super helpful, made sure everything was done right, and went above and beyond to make sure I was taken care of. It’s rare to find that kind of customer service these days. If you’re in Boulder and need car service, I can’t recommend this shop enough. I’ll definitely be back!
metiki Ringoen

★★★★★
3 months ago
I had an excellent experience at Big O Tires. From the moment I walked in, the staff was professional, honest, and genuinely helpful. They took the time to explain everything clearly without pressure or upselling, which I truly appreciated. The service was fast, efficient, and fairly priced. My car was handled with care, and I left feeling confident and safe on the road. As a customer, you can tell they value integrity and customer satisfaction. I highly recommend Big O Tires to anyone looking for trustworthy, quality service. I will definitely be returning for all my future tire and maintenance needs.
Natalie Cutter

★★★★★
2 weeks ago
I always enjoy going to this Big O! Joe and Colin are wonderful to work with, and it’s so nice having a go-to shop you can trust with your car. They’re thorough and honest about what needs attention right away versus what can reasonably wait, and they never make you feel pressured. Their customer service is exceptional—they’re genuinely warm, friendly people who make the whole experience easy and stress-free. I truly appreciate having a shop like this I can rely on and never feel the need to shop around for another option. They’re the best out there - look no further!