Store Address
1205 S Main St
Longmont, CO 80501

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4.7 /5
133 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 & Re-balance With Tire Purchases
  • 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

  • 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)
  • 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.

Oct 15, 2016
Got a flat and took my car to Big-O, I needed to get some new tires in a hurry and get the mounted in a hurry as well. They were able to get my tires in by the next morning and mounted them that morning in 45 mins.. That has never happened for me in any of the other tire stores I've been to!! Price was good for the tires and additional work as well.
Bill was honest and fair about what I needed and charged me accordingly. He wasn't out to take advantage of a first comer or a woman. Thank you Bill....need more people like you. Even though the Internet was down, Andy managed to get me though without a hitch. Thank you Big-O.......I will be back, you can count on it!! Satisfied Customer.
Oct 11, 2016
super fast and friendly came in for a oil change and tire rotation
Oct 7, 2016
This last visit was routine rotate and balance.Service was great as usual.Have been buying tires and getting front end alignments done at BigO on all my cars since we moved to Longmont over 30 years ago.
Oct 7, 2016
I have used Big O Tires for years.My son worked for them while in high school 20 years ago.Employees are great to work with, prices are good, and I'm pleased with the tires and have been for years.
Sep 23, 2016
I have used this store since moving to Firestone and I have been approached quickly and they have always performed well. They do not try to sell you something that you don't need.
Sep 23, 2016
Had to get a new tire, fast, friendly cheap!!!!LOVE THE PRICES!!
Sep 18, 2016
They are a professional group who do a thorough job repairing vehicles
Sep 15, 2016
In and out in shorter time than estimated. Very friendly. Service was excellent.
Sep 13, 2016
I came in with a very limited time window and a huge piece of steel lodged in my Bigfoot A/T tire.Mr. Pressler was the utmost professional and truly listened to my situation and detail.With a packed store and all work bays maxed out, he juggled some things and made my emergency repair an urgency and the crew finished just in time for me to make my meeting on time.After the team double checked my spare was solid just in case, I was on the road ready and confident that my4WD was in good hands and my wheels, tires, brakes, and fluids were all checked out. Just a great experience overall because Sean Pressler asked me the pertinent questions and fully understood my schedule and constraints. I could not have been happier with this store and the service from Sean.
Bottom line is...Big O' Tires in Longmont, CO Rocks!
Sep 10, 2016
I got a new set of tires and some front end work. Everything went well and the car drives like a dream.
Sep 8, 2016
reservation time 7:30,started work about 7:20. did extra work in good time,I was thoroughly satisfied with time frame work was done in.
Sep 6, 2016
I go every 3 months for services on my tires OR when I have a flat
Sep 5, 2016
I went in with a power steering leak that was probably caused at another shop. Sean and the team repaired a power steering high pressure hose within an hour at no charge.
Sep 4, 2016
We were treated with respect and kindness after an "off the wall" request
Sep 3, 2016
I have always had excellent service at this location.It is like night and day compared to the service received in Phoenix, AZ
Sep 3, 2016
Needed brakes on my wife's Kia Optima. Got an appointment exactly when I needed it. The job was done when promised, and at a very fair price. Can't ask for more.
Sep 2, 2016
The staff was friendly, they fixed my tire quickly and the price was very reasonable. I was very pleased with the service I received.
Aug 27, 2016
We go to Big O for ALL out tire needs. They are fast, honest and professional at all times . We highly reccomend them!
Aug 24, 2016
Last wk Mon for low tire check.Excellent service quickly checked
Aug 18, 2016
Stopped in a week ago. Very helpful and polite. The mechanics got me in and out on a tire out of balance. Drives much better. Thanks guys.
Aug 15, 2016
I had to reschedule my appointment and was still late, yet the service guys got me in and done very quickly! I really appreciate them!!
Aug 15, 2016
The technicians were friendly and efficient.You are taken care of the moment you walk in the door.They never try to upsale me and when my tires truly do not need to be replaced, just repaired, that's what they do.Free of charge!
Aug 13, 2016
Nicest guys, excellent service & best prices for tires and oil changes. Been going there for 4 years.
Aug 12, 2016
They did a great job getting me in and back out and on with my day.
Aug 5, 2016
I was the 2nd customer at the Longmont store. I have shopped there ever since. To date there have been mistakes made, but I don't judge by the mistake, I judge based on the solution and they have always had a solution. They even came to my house to change a flat on an hour old tire. Always friendly, always professional and always helpful. I go out of my way to go there, and you should too.
Aug 4, 2016
I had a slow leak and car pulling to the right. They checked and found it needed alignment. Explained why and did not charge to repair my tire. Car drives straight, no leaks and I'm happy.
Jul 26, 2016
I bought my tires from here about a year ago and have a couple tires patched. Most recent one being last Friday, 07/22/2016. I was greeted by staff member Corey and he was happy to get me taken care of in a timely manner.
Jul 25, 2016
We came in to get oil changed in our car, and were limited on our time frame. The guys were able to get us in and out sooner than anticipated. Very kind and helpful group!
Jul 23, 2016
I took our recently purchased used car with unknown, discount tires. Big O determined it was not the tire that was defective, but the sensor. They replaced the sensor and called my husband back to help explain the situation to his satisfaction. All turned out well.
Jul 12, 2016
Kept me informed on how things were progressing for my new brakes
Jun 27, 2016
Had a great experience at Big O, Recommend them highly, been trading there 30 years.
Jun 21, 2016
Have been going here for over 20 years.Will keep coming back.
Jun 20, 2016
I heard bad noises from my brakes coming home from work on a Thu. night. I called my local Big O right after opening Fri. morning. They got me in right away, and the work was done before noon! The diagnosis was front pads and rotors, and lots of brake dust in the rear. They also did a brake fluid flush which was past due.
Excellent, fast service, for less $ that I expected.
Jun 19, 2016
I have been doing business with this Big O for a long time.Bill is one of the best service advisors I have ever seen.The service I receive is always done in an efficient manner and is always done right.
Jun 11, 2016
Fast service for tire rotation out the door in twenty minutes
Jun 9, 2016
They followed the instructions I gave them to the letter, but the guy who was helping me just did not seem to want to be there. he was very monotone, and seemed a little annoyed with my questions. I saw the other employees following procedures that he didn't seem to want to do (such as honking the horn before moving someone's car). and overall he just didn't seem like he wanted to be there. He did, however, give me a very nice discount on some better tires because the ones i wanted weren't in stock, so it makes up for it
Jun 6, 2016
I was as always very pleased with the service I received on 6/4/2016. I had an oil change and tire rotation/balance.
Jun 6, 2016
Instead of a hard sale, helped us get a problem fixed and told us we would be ok for a few more months. We will be back with or other cars when it's time to get new tires!
It's like having an honest family member helping you, not a store trying to press you to get something you don't need.
Jun 3, 2016
I have used the Longmont Big O Tires for well over fifteen years. I have had brakes, tires, and suspension, work done on my cars and pickup truck. The prices are fair and the work is done quickly and in a quality manner. They are the best!!!
May 31, 2016
I had a problem with the pricing of 3 tubes.On 5-21-2016 my son bought 1 18x8.50-8 tube for $9.99.On 5-28-2016 I bought 2 tubes the same size and was charged 15.99 each.I was wondering why there was such a price difference.
May 20, 2016
i used them about a week ago and i think that they did a geat job servicing my car i had some problems with my brakes and they fixed it without me having to do anything
May 16, 2016
Quick service - friendly and reliable! I've been using them for years to install or take off my snow tires. They stand up for their work.
May 5, 2016
Overall service of Big o is good. I appreciate for big O flexible service for tire and Oil change. also i appreciate you guys sell used tires and prefer customer demand.
Apr 30, 2016
I needed work on my van this last week and Big O was able to get the work done the same day without an appointment and near the end of the day, too. Thanks for always being available!
Apr 24, 2016
I've been using my local Big O Tires for 20 years with total satisfaction.
Apr 22, 2016
As always, courteous and professional. And quick. .
Apr 9, 2016
I called ahead and they let me know the time expectations. I was in and out in 15 minutes!
Apr 2, 2016
They didn't have my oddly sized tires in stock so ordered them and they came the next day, put on very swiftly and gave me wonderful professional service.
Mar 31, 2016
I have used the local Big O Tires service since 1982 when the store opened. The team at the store has never let me down. Awesome service!!!
Mar 28, 2016
Been using them for many years. ***************************************************************************************
Mar 27, 2016
I would not take my cars anywhere else. I have been going to big o for 5 years.
Mar 22, 2016
Made an appointment for oil change/tire rotation for my grandson's vehicle and asked if they could possibly squeeze in mine as well. As usual, the guys at the South Main Big O were wonderful, getting both done very efficiently, helping with wiper replacement, etc.!! Thanks!!
Mar 21, 2016
Paid a good price for 4 tires. They were able to get me and finish the job quickly.
Mar 17, 2016
Sean and his Longmont Big O team always do a great job!
Mar 17, 2016
I was on my way to work and needed a new wheel, they were able to get me in and out and on my way. It was greatly appreciated.
Mar 16, 2016
Big O saved me a huge hassle and possibly engine damage by finding a bulging upper radiator hose on my vehicle. I had just come directly from an oil change at a local car dealership that also included an inspection and fluid fill. The dealership missed it! I went to Big O for a tire rotation, that they sent an email reminder for. I am very grateful. Big O in Longmont, CO Rocks! These guys are STARS*****
Mar 15, 2016
I will not go anywhere else. I have been using them for almost 5 years. Never been dissatisfied.
Mar 7, 2016
Had my tire rotation last weekend-fast and courteous!
Mar 4, 2016
Longmont Big O alway give the car a thorough inspection and gives us that valuable information about our car. We always leave happy and feeling safe on the Highways
Mar 2, 2016
I have been going to Big O Tires in Longmont for over 35 years. They always give Great service, attitude and a quailty product. Mike Sean and Bill are great people to work with and I will continue to use them for all my tire and service needs.
Feb 26, 2016
The Big O in Longmont (1205 S Main St) serviced my vehicle after an incident in which I ran over 'something in the road'. I had bent some parts near/under the left front of the car and they fixed whatever the problem was, and met the estimate exactly as quoted.
Feb 25, 2016
The last snow storm that hit rush hour traffic I blew a tire. I got my car towed to Big O Tires,(after they had closed). When I called them the next morning, they took care of it right away, and had my car by 8:30 AM that morning!! You just can't beat that kind of service !!!
Feb 22, 2016
The only problem with BIG-O are the products and service are so good they are becoming very popular. If you are careful about when you visit, it is usually pretty quick to get your tires rotated and balanced.
Feb 22, 2016
I have had service from Big O in the past and would recomend them to all my friends!!!!
Feb 16, 2016
Very helpful, impressed with service.Waiting area was comfortable and clean, and the guys were very friendly.
Feb 13, 2016
I pulled in to get tires balanced and they came out took my truck in and came back out said the tires were out of round and fixed the problem while I waited .. now my truck has no more vibration .. Thanks Big O Tires
Feb 10, 2016
I have never had to deal with a flat tire before and went to Big O for help with one. Bill was so wonderful and helpful. All the service men were very nice and I was out of there in no time with a fixed tire and no charge. Thank you for such wonderful Service!
Feb 10, 2016
Fast and friendly service... Always make you feel at home and comfortable...
Feb 10, 2016
After two very frustrating experiences back to back I tried one final time at their request. I did not mention the first two disappointments because I did not want "special" treatment. This time they did FABULOUS. They got all four tires rotated and balanced and the car ready to go in less than 15 minutes!! They did GREAT!!
Jan 17, 2016
My tires were left black by the manufacturing process
Jan 15, 2016
Came in with a flat tire. They took care of it very quickly and got me back on the road.
Jan 15, 2016
I know when I am walking in to my Big O tires in Longmont I will always get special and honest service! Thanks big O Tires!
Jan 14, 2016
Quick and courteous. We were in a hurry and there was no issue.
Jan 13, 2016
I use this service every time the tires of my vehicle need maintenance.
Jan 4, 2016
Jan 4, 2016
Got it when there was no line. Just had to rotate my tires and done within 30 minutes. Super friendly guys!
Dec 14, 2015
I was there Friday December 11 late afternoon and I always have a great service.
Dec 14, 2015
Longmont's Big O Tire is second to none. I will be buying tires soon and I will go to no other place. They are so professional and customer focused that the thought of Big O makes me smile.
Dec 9, 2015
In all my visits, I have not been charged more than I have been charged, meaning, you understand that relationships built are more important than nickel and dimeing of the customer at every touch point. Understandably, these were minor air leaks and such, but it's nice to be recognized when you arrive, nice to get prompt attention when you're there, and always great to get the service that this station in Longmont Co. provides. Couldn't be happier and yes, I tell everyone my stories.
Dec 7, 2015
Great service, it is why I have been with your store for the last 30 years.
Dec 6, 2015
I have gone to Big O Tires in south Longmont for over 18 years. The have services my hot rods, pickup, daily driver vehicles with tires, brakes, steering parts, and always did an outstanding job at a fair price. Gary Ellison
Dec 4, 2015
It's pit stop timing which shows clear respect for my time.
Dec 2, 2015
I needed to have a flat fixed, and was able to get to Big O, and in an hour have my Jeep back and able to get on with the rest of my day. The guys on the floor were pleasant and professional.
Nov 29, 2015
Our jeep blew out a tire the night before Thanksgiving. I brought it in on Friday morning after Thanksgiving and, even in the midst of a crazy day, the customer service was kind and helpful. Thank you Big O.
Nov 27, 2015
I've been coming to you for years. I drop off my car knowing you'll take care of my tires. Sean is always happy and kind.
Nov 27, 2015
Manager is Customer focused. Great guy and of his word.
Nov 26, 2015
Had my Chevelle and Ram dually in last week for balance and rotation. The service was great very smooth ride now in both. Thanks Bill and team!
Nov 13, 2015
The problem was fixed in an afternoon and they were amazing to work with, esp. Sean.
Nov 8, 2015
Great Service. I am so glad I came there. I feel better about my community because of this store and the way I am taken care of.
Nov 8, 2015
Great fast and friendly service!!! Able to assist me within the same day with no appointment...
Nov 6, 2015
They got the job done quickly. They could use more reps in the lobby, I had to wait to talk to a rep but once I did it was easy.
Nov 6, 2015
Super happy with the service I was provided and they gave me a great deal! Honest and upfront staff!
Nov 6, 2015
Sean and his team are great! Even though they're working in a very small retail location, with one bay for most of the customer worked needed for in/out service, they are all outstanding. Tell the owner, Mike, to get with the program and update this building with more room to accommodate Sean's valued and loyal customers like me. at 12:30pm on a Tuesday one shouldn't have to wait an hr and half to rotate tires. I've recommended this location for 14yrs, and before then the location in Louisville when Rod and Al were there (Currently in Casper, WY) FYI to Mike and Big O, look to the location adjacent that's for sale.......
Nov 3, 2015
I recently bought four tires for my Buick and the price was right and the service was outstanding. We took the Mazda in to have the winter tires put on it and received the same outstanding service. I have taken all our vehicles to Big O Tires in Longmont for brakes, shocks, steering parts like ball joints, and tires, for over 18 years and had the same level of service each time. They have serviced my daily driver cars as well my classic hot rods. They are the best!! Gary Ellison
Oct 31, 2015
They know what they are doing. Very efficient. They could clean windshields
Sep 15, 2015
They are allways very helpful, and do a great job!
Sep 14, 2015
I took my tires in to be rotated. Thank you for letting me know it was time to do this. Thank you Big O.
Sep 12, 2015
These guys work hard, and are busy, so you can tell everyone likes their work. Take them a box of doughnuts or something, to let them know what a good job they're doing. You know it's a dirty job!
Sep 11, 2015
Addressed personal needs. Protected my vehicle. Good advice. Very clean restroom. Needs larger parking lot. Great product.
Sep 11, 2015
I had to go to Big-o as on of my front tires had a bulge in it and it was time for new ones. I also knew my back breaks were ready to be replaced. Stopped in on my lunch break and they had my car ready to go for me at the end of the day with all problems address. They could not have been more helpful and friendly!! And it didn't break the bank!!