100% Customer Satisfaction

Work Done Right – the First Time, On Time
Same Day Service – Always Our Goal!


Complimentary Local Shuttle
Clean, Comfortable Waiting Room with Wi-Fi

Boulder's auto repair experts... with a personal touch.

Who we are:

At John’s Auto Care, we combine old-fashioned values with the very latest in auto repair technology. Leaders in Boulder car repair and service since 2005, we work on all import and domestic cars, SUVs and light trucks. Owner, John Argrow, has been an auto mechanic in Boulder for over 15 years, with many devoted customers from Boulder County, Longmont, Broomfield, Westminster and surrounding areas. We value the long-term patronage of our clients and are proud of the relationships we’ve built with them. We understand that trust is something that must be earned, and work hard to exceed our customer’s expectations.

Our talented team of handpicked mechanics has a thorough understanding of even the most complicated car and truck problems … along with a true passion for people! Our customer service motto: Treat the customer the way you’d want your mother to be treated.

We genuinely want you to enjoy your experience with us and strive to keep you and your family safe on the road for miles of worry-free driving! You won’t find a more friendly and dependable auto repair shop committed to providing you with exceptional customer care and on-time service.


What we do:

Whether you own an import or domestic car, truck or SUV, we offer a complete array of affordable preventative maintenance services and can diagnose and repair just about any issue that may come up – from oil changes and tune-ups to computer diagnostics and engine repairs and everything in-between.

Our ASE-certified auto mechanics conduct a thorough FREE inspection with each visit to ensure your vehicle is safe, help avoid costly repairs and optimize gas mileage. Understanding that most people do not have unlimited funds available at will, we make sure each customer is informed of any and all services or repairs that are called for; render a detailed estimate for each; and help prioritize any work needed or recommended so customers can budget and plan. We then send reminders of any work needed so issues can be addressed BEFORE they become a problem – saving money and headaches down the road. Bring your car to us and you’ll never have to worry about it again.


Car Care Tips from the Blog

Fresh Air Inside Your Car in Boulder

Air quality has certainly become a hot issue in our modern Boulder world. We install air filters on our ventilation systems and in our vacuum cleaners. There’s a filter that cleans the air going into our family car’s engine — so why not one for the air in the passenger compartment? Foreign and domestic auto [...]

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Keeping Your Engine Cool In Boulder, CO

The cooling system keeps CO car owners’s engines from overheating while they are driving around Boulder, Boulder and Louisville. Its job is to move heat away from the engine. Let’s talk about the various components of the system and how they make this happen. The radiator is the part most Boulder car owners associate with [...]

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Tire Tread Depth for Boulder, CO Drivers

Driving on bald tires is like playing roulette. Though you may be fine today, eventually your luck is going to run out. The Feds don’t have any laws for tread depth, but 42 of the states, and all of Canada, do have regulations. They consider two-thirty-seconds of an inch to be the minimum legal tread [...]

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Wheel Balancing at John’s Auto Care

So you love your job, and your family life is great. Congratulations! You have achieved balance. But can you say the same for your wheels? Boulder motorists can tell if their tires are out of balance by vibrations at higher speeds on CO interstates. If one of the front tires is out, you feel the [...]

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Why People In Boulder Hesitate to Get their Vehicle Serviced

A recent report stated that over 80 percent of the vehicles on our Boulder CO roads have one or more service or repair that’s needed, but hasn’t been taken care of. Now that’s a lot of undone service. That translates into something over 160 million vehicles in the U.S. alone. Some of the neglected items [...]

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What To Do In Case Of An Accident

If you’ve ever been in a car accident around Boulder CO, even a minor one, you know how upsetting it can be. It’s hard to think straight and know what to do. Let’s review what you should do in case of an accident in Boulder, CO: When an accident occurs, you should always stop. Leaving [...]

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John’s Auto Care Auto Tips and Videos: Battery Testing

The simple fact is that 70% of car batteries fail within 4 years. They just need to be replaced when they are no longer able to hold a full charge. Batteries are a big ticket item for most Boulder drivers and it’s tempting to put off buying a new one as long as possible. But [...]

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The Fallacy of Cheap Tires

Do you ever shop for shoes in one of our Eldorado Springs area shoe stores? When buying a running shoe, is quality important? Does durability matter as long as the shoes look fabulous? Would you rather have one pair of long lasting shoes or two pair of lower quality shoes at the same price? Is [...]

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Are There Blind Spots In Boulder CO?

All Boulder drivers have blind spots – and no, I’m not talking about the fact that you really don’t sing like Adele. I mean the areas of the road that you can’t see when you’re driving around Boulder. First let’s talk about our own blinds spots, and then we can talk about others… To begin, [...]

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Coolant Antifreeze Service In Boulder, CO

Boulder auto owners may know that most automotive failures in Boulder, CO are tire related, but do you know the second most common cause for vehicle failure? Nope, it’s not teenagers. It is the coolant system. But, if you take good care of your family car coolant system, it will take good care of you. [...]

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