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

On Board Diagnostics For Your family car

Make an appointment with John’s Auto Care to have your on board diagnostics analyzed. 1900 55th St. #104 Boulder, CO 80301 303.442.2932 Today we’re going to talk about on-board diagnostics and the questions we hear from folks around Boulder CO who need answers about diagnostic services. They want to know what diagnostics are, what’s involved [...]

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Your Well Trained Technician At John’s Auto Care

When your family car has a problem, or just needs some routine service, you might get a little nervous. Your car’s so important to your life in Boulder, you need to back on the road as soon as possible – with the problem fixed right the first time. If you’ve ever checked into some of [...]

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Fuel Saving Tip: Fuel System Cleaning Near Louisville CO

A lot of gas is wasted in the Louisville area by dirty fuel delivery systems. Let’s start at the tank. The gas tank gathers dirt, rust and sediment over the years. That’s why there’s a fuel filter to clean the fuel after it leaves the tank. A dirty filter will rob the engine of the [...]

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The John’s Auto Care Guide To Custom Wheels

Your browser does not support video If you’re interested in customizing the wheels and tires on your family car, there are a few things you should know first. Most importantly, the wheels you buy need to fit your vehicle. Not all wheels are created equal. Too many Boulder auto owners have bought a set of [...]

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John’s Auto Care Guide To Using the Correct Fluids in Your Vehicle

Today’s John’s Auto Care post focuses on using the proper fluids for your vehicle. Significant advancements in automotive technology have lead to the development of high-tech fluids to keep modern cars operating at peak performance. This is due to both engineering advances and new high-tech materials used to build family car automotive systems. A simple [...]

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Gear Up: Transmission Service at John’s Auto Care in Boulder

Your browser does not support video The transmission system in your vehicle allows you to change gears. Lower gears are power gears. They get your vehicle moving and get it up hills. Higher gears get the vehicle up to speed and get it rolling faster. If you have a standard transmission, then you have to [...]

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Wiper Blades In CO

If you’re gonna drive around the Eldorado Springs area, you’ve got to be able to see! So having a good pair of windshield wipers is extremely important. We’ve all experienced the frustration and fear of not being able to see clearly during a storm, or when our windshield is just dirty. It seems like your [...]

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A New Battery In Boulder

Your browser does not support video Hello Boulder drivers, let’s talk about batteries. Car batteries are just like any rechargeable battery. They will eventually wear out and die. If you are shopping for a new battery in Boulder, here’s some auto advice to help you. There are two measurements to consider when purchasing a new [...]

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Technician Training at John’s Auto Care

Your car is important to you and keeping it running properly is vital to your Boulder lifestyle. That’s why you’re smart to have it serviced regularly at John’s Auto Care in Boulder. And even though it may just be routine maintenance, you want it done right by automotive professionals. It’s also very important to your [...]

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The John’s Auto Care Guide to Saving Fuel: Car Weight

Your browser does not support video The team at John’s Auto Care in Boulder and CO car owners are all talking fuel efficiency right now. Better gas mileage. Fewer emissions. Boulder drivers want to save the environment and their pocketbooks. And we all know—or should know—that preventive maintenance will help maximize fuel economy. But is [...]

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