The Auto Repair Shop St. Charles has been trusting since 1995


Tune Ups

Security Systems

Tire Alignment

Audio Systems


Engine Maintenance


what we’re about

At Cintech Automotive Repair, we strive to provide superb service at all times. When it comes to your vehicle you need to have someone you trust to give you the facts, and what needs to be done to fix it right, the first time. We are the people that countless people in the St. Charles and surrounding area have come to trust over the last nearly 25 years for their auto repair needs. We service all makes and models, and try to be a true dealer alternative for automotive repair and service.

From preventative maintenance to advanced diagnostics our ASE certified technicians have seen it, solved it, and shipped it. To learn more about us and the services we provide give us a call or reach out to us through here. We’re always available to chat about all of your auto repair needs.

Our Services & Offers


Air conditioning repair

We provide thorough air conditioning inspections to ensure an accurate diagnosis and comprehensive and honest assessments. All auto air conditioning repairs performed by us are done using quality parts and installed by a MACS certified auto repair technician.

Tires and wheel services

We offer competitively-priced  tires from the automotive industry’s best tire brands, including Goodyear, Michelin, Kelly, Cooper and Kumho.  We offer free lifetime tire rotation on every set of tires we sell. Our ASE-certified technicians are trained to accurately diagnose all automotive tire and wheel issues that may arise

Batteries, alternators, starters

Your alternator is an essential component that keeps your battery fully charged. As your engine runs, the alternator works like a generator to create electricity for your radio, windshield wipers, headlights and more.

Without an alternator or battery, your car couldn’t perform any of these tasks. Modern vehicles also use electricity to start your vehicle, so a dead battery means a dead car.



Exhaust System

The job of your car exhaust system is to manage the dangerous gas emissions created by your engine’s combustion process. It helps improve overall vehicle performance and fuel mileage, minimize noise and reduce the amount of pollutants released into the environment.

brake repair and service

Brakes should be examined at least once annually for the safety of your vehicle. Maintaining your vehicle’s brakes is one of the most crucial precautions you could take. You can have the confidence of knowing that when you press your foot to the brake, your car is going to stop.

Hybrid repair

The ASE certified mechanics at Cintech Automotive Repair service all of your hybrid repair and service needs. Hybrid vehicles need special care and our staff is prepared to provide the unique care that your hybrid vehicle requires.

check engine light diagnostics

Thanks to the check engine light, we can easily know when something is amiss with our car. The benefits of getting your car issues diagnosed are endless. With a check engine diagnostic test, you may be able to catch a small problem before it becomes a bigger and more costly issue.

Missouri State Vehicle Inspections

Safety inspections are required of all vehicles; however, only residents in St. Louis, St. Charles, Franklin, and Jefferson counties are required to take the emissions test. Vehicles with even model years will be inspected on even calendar years; vehicles with odd model years will be inspected in odd calendar years.
  • licensed missouri state vehicle inspectors
  • top rated automotive repair in st. charles
  • specialists in advanced diagnostics
  • factory level pass-thru programming
  • world class noise, vibration, harshness diagnostics
  • 5 star review  I use CINTECH Auto, because I can trust them, in addition to the quality of their work. Over the years, they have repeatedly demonstrated their honesty and integrity. One example follows. I locked my Ranger in four wheel drive. No matter what I did I could not switch it back to two wheel drive. When the CINTECH technician backed it up, it popped out of four wheel drive. Greg called me to let me know what happened. He also gave me good advise on preventing the issue in the future. They could have charged me hundreds of dollars and I would not have known the difference. Thank you. to all of the CINTECH employees.

    LLoyd Garreau Avatar LLoyd Garreau
    February 2, 2017
  • 5 star review  My family has been trusting Cintech with our cars for over a decade. Good service, friendly employees, and honest advice + pricing. Wouldn't go anywhere else!

    Allison Rose Nelke Avatar Allison Rose Nelke
    July 12, 2017
  • positive review  I’ve been using Cintech for about 2 years now and I wish I found them earlier! They always do a great job and they are honest and trust worthy - you don’t have to be worried about getting a sales pitch to put in a new air filter each time you bring your car in 👍

    Megan McFarland O'Rear Avatar Megan McFarland O'Rear
    July 30, 2019
  • 5 star review  Hands down the best shop around!! I've been coming here for years and have always recommended Cintech to family and friends. They have always beat the dealership on pricing and the quality of work is just as high, this in addition to having an honest and friendly staff is a huge plus!

    Becky Grumich Kirkwood Avatar Becky Grumich Kirkwood
    February 3, 2017
  • 5 star review  Love them! Wouldn't take my car to anyone else! Thank you for always being trustworthy!

    Cam Elizabeth Avatar Cam Elizabeth
    February 3, 2017
  • positive review  I will never take my car anywhere else when I’m in Missouri. Friendly, honest, knowledgeable staff. Recently bought a new to me car but didn’t have them check it out first (shame on me). Turned out to have a multitude of problems. I had bought a warranty and Casey got the warranty company to pay for something they told me they wouldn’t cover over the phone. They fixed all the issues faster than originally said. And the work is always top notch. I lived in Florida for 10 years and compared all other automotive shops to them!

    Chelsy Parnell Avatar Chelsy Parnell
    August 2, 2019
  • 5 star review  We have used Cintech for many years. They always take create care of us! We will always recommend Cintech to anyone looking for a automotive repair place!

    Angela Taylor Maue Avatar Angela Taylor Maue
    February 3, 2017
  • positive review  Extremely fair and wonderful mechanics!!

    Becky Setzer Avatar Becky Setzer
    January 18, 2019
  • 5 star review  We've been going to Cintech for about 15 years and they have always treated us like family, never did unnecessary work and stand behind their services. I seriously can't say enough about how great they are and how well they've treated us!

    Lisa Lancia Walker Avatar Lisa Lancia Walker
    February 23, 2018
  • positive review  Would highly recommend using Cintech for your automotive needs. Super nice customer service and top notch technicians. Not only using personally but use for my companies fleet trucks.

    Asa Shepherd Avatar Asa Shepherd
    August 15, 2019

Auto Repair Services

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(636) 939-4845

Vehicle Brands We Repair