Store Address
1205 S Main St
Longmont, CO 80501

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4.9 /5
202 reviews

Give Us a Call
(303) 772-1462

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Mon - Fri 7:00 AM - 6:00 PM
Saturday 7:00 AM - 5:00 PM
Sunday Closed

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Tire Services

  • Free Alignment Check With Printout
  • Free rotation with new tire purchase
  • Free Flat Repair With Tire Purchases
  • Free Air Pressure Checks Every Day (no appointments needed)
  • Everyday Low Price Tire Guarantee
  • Express Lane Tire Service (no appointments needed)
  • Big O® Tires Credit Card with 6-month, No-interest Financing

Other Services

  • Fleet Services
  • Free Brake Inspection (no appointment needed)
  • Free 22-Point Vehicle Inspection (no appointment needed)
  • Free Battery & Electrical Check
  • Free 5-Minute Wiper Blade/Bulb Inspection
  • Free Local Shuttle Service
  • Complete Owner's Manual Scheduled Maintenance Services
  • Good/Better/Best Oil Change Options (with free top-off service)
  • Free Wi-Fi
  • Customer Pick-Up / Drop-Off Service Offered
  • Separate Child Play Area
  • Complimentary Beverages Available
  • Complete Suspension (Shocks/Struts/Springs) and Driveline repair
  • And More!

* Services offered may vary by location.

Why choose Big O Tires Auto Service?

When it comes to having a car or truck serviced, most drivers have more questions than answers. Questions like "What is rotor resurfacing... and how much will it cost?" And "What on earth is that clunking sound?!" For many years, Big O Tires customers have trusted us to offer straight answers and top-notch services. Big O Tires offers a wide range of diagnostic, repair and routine maintenance services, backed by one of the best national services warranties in the business. Not sure when your vehicle's due for routine maintenance services? Drop by, and we'll look it up for you!

Check out our

Note: Any recommendations provided on are general in nature. Big O Tires recommends that you always consult your vehicle’s Owner’s Manual, the vehicle manufacturer or an associate at your local Big O Tires store for vehicle specific recommendations. The names and descriptions of services are general in nature. Actual service offerings vary by location, and not all stores offer all services! The availability of our oil change service and the use of Valvoline oil products varies depending on the Big O Tires location near you. Please contact a Big O Tires store near you to find out what services and oil products are offered.


Dec 20, 2018
Dec 17, 2018
The team at Longmont Big-O are always fast, friendly, send professional. Nice waiting room to relax while the work is completed!
Nov 20, 2018
I always return to this Big O location because of the service and the people that work there. There is a level of customer service here that I have not experienced at other locations. Bill is always super helpful and great to work with!
Nov 9, 2018
Sean Pressler works well to cultivate repeat customers.
Nov 6, 2018
I'm a busy mom whose tight on cash... I discovered a screw in my tire this morning. I went to big O tire after I got the kids from school in was told it was going to be a very long wait over an hour the gentleman offered to look at my tire to see if it was losing air. We discovered there was no air loss he was able to take the very tiny screw out there is no damage to my tire I did not have to wait he went above and beyond I will definitely give this place my business in the future and recommend it to anyone good people that genuinely care about others I did not feel like a number. I think other stores in town could learn something from this place finding people with heart is rare these days but they still exist give your business to big O tire!
Oct 18, 2018
Always feel I am in good hands with Sean, Bill and Andy! Just needed new tires and went to Big O over Sam's Club and Costco because I trust these guys.
Oct 12, 2018
Bill was very helpful in my making a decision on the tore to buy
Oct 8, 2018
Very pleased with the service and work and yes I will be returning for other service offered
Sep 24, 2018
always great service...thank you!
Sep 17, 2018
Great service
Sep 17, 2018
The problem was resolved after new tires were put on my car.
Sep 2, 2018
I’ve been coming here for years, in that time I have always been treated to the very best in customer service. This has included not only tires but informing us of a recall that we hadn’t been notified of by the vehicle’s manufacturer. It doesn’t matter who waits on us, we are always treated with the utmost courtesy!
Aug 22, 2018
I come in so often (older cars) that we are all on a first named basis. The guys always take great care of me!
Aug 8, 2018
When the tires we needed weren't on the delivery truck last week, one of the employees made a special trip to Denver first thing the next morning to get them for us. THAT is good customer service!!!!!
May 17, 2018
Outstanding partner!
May 7, 2018
great service...
Apr 18, 2018
I work directly with Mike Lyons and have always received great service. I only get what I need and get recommendations for future service needs to consider.
Apr 4, 2018
Our van was damaged during service at Big O, but they showed great customer service and integrity in remediation. Their manager was very responsive to my concerns, communicated well, and resolved the issue quickly. I am very pleased with their honesty, and will continue to be a loyal customer in the future.
Apr 2, 2018
I needed a new battery and they replaced it in just a few minutes at a good price. I have used Big O for over 30 years and have always been pleased. Great service and great folks. Could you change my email from to
Mar 29, 2018
I always am amazed at the kindness of the customers service reps in this store! LOVE THEM! Will come back time and time again and refer to any friends that need assistance!
Mar 26, 2018
I've been going to Big O in Longmont for 18 years. They have done tires, alignments, shocks, struts and leaf springs on several of my vehicles and others in my circle of friends and family. I wouldn't go anywhere else. They are all so knowledgeable and helpful.
Mar 13, 2018
Keagan was so helpful and polite! I really appreciate his efforts (and the manager's input) to work with me on a tire replacement for my son's truck. Thanks!
Mar 13, 2018
Always helpful and excellent work
Mar 5, 2018
Give Julian a raise! I used to be dedicated to the competition, till today. We beat before he could greet however. We were here due to a broken lug nut after vying tires the other day. We were treated with exceptional service! Employee Julian stood out, he is a wonder asset to the company. I was impressed and I think I will try your services next time I get a car. I had expected a fight and found myself writing this review proud to come back if I ever need to. Thank you!!!
Feb 27, 2018
After dealing with a problem tire for two years that nobody could fix, these people fixed it and I’m so happy!!