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Oakville Automotive Inc
- Tire
- Oil
- Brake
“Prompt and efficient service.”
Coolant & Radiator Flush in Saint Louis, MO
24 mechanics listed · 18 in Saint Louis · 6 open weekends · 19 rated 4.5+
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JH Auto STL
- College
- Communication
- Honda Element
“I came to JH and Sam was really polite and very informative on what was going on in my car he took great care of me and is really empathetic towards his customers.”
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Benchmark Auto Repair
“I strongly recommend Benchmark because you would always feel happy with each service and trust me you will definitely become their loyal customer because of their reliable service!”
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Carsmart Auto Service
“That test ending up expiring due to the State of Missouri taking way to long to process my paperwork, I was able to be seen again and had it taken care of again!”
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Roadman Automotive
- Fair
- Vehicle
- Money
“Every interaction i had with the team from the first call to the pick up if my daughter's vehicle made me feel comfortable and confident that they were being honest and providing quality repairs.”
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Marty's Auto Shop
“When we took the car to Marty's for a different issue, we asked about the washer fluid, he said it was a broken elbow he would fix it, and he did no additional charge.”
Area overview: Saint Louis, MO
Of the 24 mechanics we list here, 18 are in Saint Louis itself and 6 come from towns including Rock Hill (1, 6 mi), Kirkwood (1, 10 mi) and Maryland Heights (1, 11 mi). The mechanics on this page are rated from 4.0 to 5.0 across 5,277 reviews; 23 have 50 or more reviews and 19 are rated 4.5 or higher. When customers rate these mechanics on specific qualities, they most often praise professionalism (88%), quality (77%) and value (77%). The topics that come up most in reviews of the mechanics on this page are "communication", "diagnosis" and "fair". 6 are open on Saturdays. The services the mechanics on this page list most often on their websites are diagnostics (4), oil changes (4), steering & suspension (4), belts & hoses (2) and brakes (2). 8 list staff certifications (ASE) and 12 have a BBB rating of A or A+. 16 have ten or more years of experience, the longest 49 years. 7 offer financing; 2 give free estimates; 3 are family- or locally-owned and 12 list coupons or special offers. We count these figures across the mechanics on this page; distances are straight-line, and hours and prices change, so confirm the details with the mechanic before you visit.
Data verified October 9, 2026
Listed for drivers in and around Saint Louis, MO, these 24 shops list coolant flushes and antifreeze service. What each one says about the coolant types it stocks, machine flushes and warranties comes from its own website; ratings and quotes come from public reviews.
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Union Weber Autocare
“I live 1 hour away and called Dobbs and they told me to come on down but 3 people ahead of me so they cold not guarantee that someone would look at it.”
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Eric's Master Auto Repair
- Knowledge
- Team
- Inspection
“In addition to quality services and affordable prices, I appreciate that I can get a ride or schedule to borrow a car on days when I need to drop my car off for the day.”
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Epic Automotive
“I messaged them through chat on Google to find out if I could walk in for a safety inspection they said they would try to work me into the schedule and got me in the same day!!!”
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Jackson's Master Auto Repair
- Oil
- Team
- Communication
“My wife and I have been using Master Auto as our go to for our auto mechanical issues for many years and we are very thankful to have such great mechanics right in our neighborhood!”
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Sant Automotive
- Tires
- The Future
- Safety
“) and they were able to get me in for a diagnostic last minute, the day before thanksgiving of all days, when no one else would even answer their phones, and treated me with genuine friendliness.”
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Bimmers R Us
- Oil
- Job
- Sales
“Services Electrical repair, Tires, Steering & suspension repair, General repairs & maintenance, Wheel alignment, Auto tire replacement, Air conditioning”
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Euro Car
- Mechanic
- Diagnosed
- Oil
“I've dealt with numerous Indy import shops locally but Euro car and the owner Nas is by far the most honest professional and affordable business and person out there.”
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Spirit One Automotive
“My rear tire needing to be plugged, they said they did it but my low tire pressure light is still on, not sure if this happened or not, no paperwork stating it was completed, just word of mouth.”
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Midas
- AC
- Mechanic
- Receptionist
“Clay and Carlos helped me get my air conditioner working again when someone else tried to make me replace a part I didn't have to that was going to call extra $300.”
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King Auto Repair
“Services Electrical repair, Tires, Steering & suspension repair, General repairs & maintenance, Auto A/C recharge, Auto engine diagnostic, Auto brake repair, Brakes, Air conditioning, Wiper blade installation, Auto maintenance, Battery, Oil change”
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Precision Import Auto Service
- Honda Civic
- Dealership
- Oil
“They have always kept me in the loop letting me know of any additional issues they have come across along the way, the severity of it, and if it is a necessary, recommended, or potential future repair to be done.”
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Speedy Lube
“Been taking my cars here for years recommended everyone I know to go there they friendly and help u with other questions u not sure wrong with your car”
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Reliable Automotive
- Diagnose
- Work Done
- Trip
“Great Mechanical work done on my vehicle Gary the owner was very professional and helpful he also fixed two other issues and only charged me for the parts”
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Car-Doc Automotive
“They also go above and beyond for their customers (I once had my entire wheel stolen and they came to my apartment to replace it so that I didn't have to tow my car.”
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Combs Auto Service & Tire Center
“They explained that they are not a transmission repair shop, but I knew that they could probably diagnose the problem and advise me as to my best options, as they have done in the past with my other automobiles.”
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Auto World Tire & Auto
“After having a battery of suspension work done between the front of the vehicle and the rear of the vehicle they even gave a honest recommendation based of the mileage of the vehicle.”
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Bernhard Auto Works
“They also worked in a timeframe of when my daughter was in town, completing multiple issues in a timely manner and staying late to finish within the window of time she was home.”
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Steger Service
“Everyone I've had interactions with including Chris (the owner), Carol (the office manager), and Eleana (the front desk receptionist) have all been wonderful.”
Radiator Coolant Fluid Exchange Services in Saint Louis, MO Cost Estimates
Minimum cost
$74
Maximum cost
$284
National Average
$118
$124
$185
Average price range is based on 486 cost profiles
Why these companies made our list
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FAQ
Can I book a coolant change online in Saint Louis?
Online booking is offered by 7 of the 24 shops. Put your engine and the coolant specification in the notes when you book, since the shop needs the right fluid on the shelf before you arrive rather than a universal jug under the counter.