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

Battery Replacement At John’s Auto Care In Boulder

Hello, welcome to John’s Auto Care. Today’s focus is batteries. It seems like everything in Boulder runs on batteries. Of course, the batteries we’re most concerned with here at John’s Auto Care are those in our customer’s vehicles. Just like the batteries in our smoke detectors or TV remote, car batteries wear out and need [...]

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Go Straight: Wheel Alignment For Boulder Automobiles

Eldorado Springs auto owners may have an alignment problem if their car drifts or pulls to one side, the steering wheel’s off center, they notice uneven tire wear or the car doesn’t feel like it handles right as they drive down Boulder, CO streets and highways. When all of a vehicle’s wheels are lined up [...]

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Shake It Up in Boulder!: Why Wheel Balancing

Our vehicles are not massage chairs. While we may enjoy a good vibration in an overstuffed recliner, us Boulder auto owners generally want as smooth a ride as possible in our vehicles. One way to achieve this is to keep a vehicle’s wheels in balance. When a tire is mounted onto a wheel, it is [...]

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Stay Headed In The Right Direction, Boulder

Power steering is standard on nearly every car and truck in Boulder, CO these days. Now there are some exotic, new types of power steering systems, but for the most part, the general setup is a pump that’s driven by a belt powered by the engine. Contact the automotive professionals at John’s Auto Care in Boulder [...]

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Fuel Injection Basics For Boulder

All modern Boulder vehicles come with fuel injection systems, so it’s a topic Eldorado Springs auto owners need to know something about. The mighty fuel injector is a valve that delivers the gas or diesel fuel to the right place, in the right amount, at the right time; to be mixed with air and burned in [...]

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Higher Mileage Service Intervals For Boulder

Boulder auto owners have probably noticed that the government mandates a lot of equipment on cars: emission devices and control computers; safety equipment like airbags; and crash worthiness requirements. All of this is great for the motoring public in Eldorado Springs but it does add quite a bit to the price of a new car [...]

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Gas Savings In Boulder: Sharpen Your Pencil

High gas prices in Boulder increase the cost of living for CO drivers. You’ve probably budgeted a certain amount for vehicle related expenses. Increased fuel costs now consume a larger portion of our incomes, causing some Boulder vehicle owners to skimp in other areas – like scheduled maintenance. According to CO news reports and automotive [...]

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The John’s Auto Care Guide for Boulder Drivers: When to Replace Your Wiper Blades

There are several essential factors that go into how often Boulder auto owners should replace their wiper blades. Of course, the more you use your wipers, the faster the blades will wear out – especially if you use them on an icy windshield. Whether it’s a lot of bugs and road grime from CO highway  driving or lots [...]

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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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