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Cool Car Guys
“I was so unbelievably grateful for his help so I can finally have a car to drive to work and take my son to daycare without having to worry about relying on someone else.”
Radiator/Cooling System Flush Services near Janesville, WI
Janesville has 2 mechanics of its own; this list adds 23 from towns including Madison (11, 33 mi), Rockford (4) and Crystal Lake (3).
24 listed · 1 in Janesville · 23 rated 4.5+
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J and S Auto Care Specialists
Maintenance, Transmission, Underbody Services
“Not only did they set me up with a future tire, they also provided a spare so I could drive to the tire source and keep driving until my new tire arrived.”
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Integrity Auto Care
“Brought in my Cadillac SRX that needed a lot of work (exhaust, tires, Trans line and more) and they got me in quickly and got me my car back out and running like new just as fast.”
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Five Star Lopez Auto Service
“Actually cares about the customers, thorough about telling you your options and what needs to be fixed, and will fix whatever you need at a reasonable price.”
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South Beloit Lube
“Great services and amazing customer service, they went above and beyond!”
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Countryside Tire and Lube LLC
- Prices
“Would recommend them to anyone.”
Area overview: Janesville, WI
Their ratings run from 4.3 to 5.0 across 4,662 reviews; 19 have 50 or more reviews; 23 are rated 4.5 or higher. When customers rate these mechanics on specific qualities, they most often praise professionalism (94%), quality (89%) and punctuality (79%). The services they list most often on their websites are car care tips (3), preventative maintenance (2) and shuttle service (2). 9 list staff certifications (ASE); 9 have a BBB rating of A or A+. Domain records put 14 of their websites at ten or more years old; the oldest dates from 1997. 3 give free estimates; 3 are family- or locally-owned. We have a website on file for 19 of them; 18 publish a contact page; 8 list a public email; 3 take bookings online. We count these figures across the mechanics on this page, from their listings and their own websites; distances are straight-line, and hours and prices change, so confirm the details with the mechanic before you visit.
Data verified September 24, 2026
The 24 shops on this page list coolant flushes and antifreeze service in Janesville, WI. 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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Carz R Us
- Report
- Text Message
- Work
“Services Air & cabin filter replacement, Steering & suspension repair, General repairs & maintenance, Vehicle Inspection, Brakes, Brake service & repair, Oil change”
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Westside Service Center
- Brakes
- Chili
- Engine
“All the machanics that have assisted me with my car issues have been great, the cost of repairs are always very reasonable, and turn around times are super quick!”
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Tom's Auto Center
Towing Service, Valvoline Professional
“Tom's Auto Center went out of their way to make this right, including covering the cost of materials and labor even though the warranty period had expired at 12 months.”
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Nakoma Plaza Auto LLC
Engine Diagnostics, Tune - Ups
“I have been a customer since I could drive and attribute the fact that my car has almost 300,000 miles on it to the great care that I have been given here.”
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Advanced Auto Clinic Delavan
Contact US, Video Library, Customer Support
“Clinic did an excellent job computer diagnostic my car and accommodating to my needs, I recommend Advanced Auto Clinic for your automobile needs.”
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Korey's Auto Kare LLC
- Oil
- Competitive
- Money
“Great place to take your car they are friendly professional and do the job right well be going there again for any work that needs to be done in the future”
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East-Side Automotive
Cooling Systems, AC & Heating Systems, Brake Repair
“I got my brakes (front & back) replaced and I think this is the first time I didn't feel like they were taking advantage of for a brake job, I'm very happy.”
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Gary Wille's Auto Service & Tire Center
- Oil
- Estimate
- Work
“I love that they give us a heads-up on things that will need to be done sometime in the next 6 months or so and provide cost estimates for them so we aren't blindsided by an unexpected cost.”
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Griffin Chrysler Dodge Jeep RAM Service Department
- Dealership
- Truck
- Car Wash
“Positive Quality, Professionalism Services Transmission, Air & cabin filter replacement, Exhaust, Steering & suspension repair, General repairs & maintenance, Engine repair, Wheel alignment, Brakes, A/C installation & repair, Air conditioning, Brake ...”
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Greg's Garage
Transmissions Replacement, Major and Minor Engine Repair, Alternators
“Great people to work with I would highly recommend Greg's garage Services Steering & suspension repair”
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Jefferson Quick Lube
- Price
- Information
“Amazing shop honestly 5 Stars isn't enough I brought my car in for a last minute oil change it only took them 10ish minutes by my guess and mid oil change they brought me out to show me my rear cradle is basically rusted away my rear end was barely h...”
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Apex Automotive Services
“Awesome place to go to get work done, Bobby was more than helpful and fair on amazing work!”
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Harvard Automotive
“My car would go through tires every 3 months he did an alignment also balanced my tires after that i had no problem with my car as a girl you always feel like mechanics try to take advantage of you because of your knowledge but Fernando made sure i u...”
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Clausen Automotive
“Daily these guys kept me in the loop with updates and were so helpful in diagnosing the issue with my car and getting it fixed as quickly as possible, despite that they are in their busy season.”
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West Town Monona Tire
Shuttle Service
“I have gone here for several tire and wheel related services over the years - swapping all season and winter tires, alignments, and most recently patching a tire.”
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Crestwood Auto Clinic
Napa Warranty, Napa Autocare, A/C Service
“I know basically nothing about cars, I've had mine 3 years and I didn't know how to open the hood until recently, and so many other shops have taken advantage of that.”
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Hansen's Auto Service Center
Maintenance Services, Repair Services
“Worked on a Gremlin in my electrical system during the hottest stretch of the summer until they fixed it right or had to tell me that I needed a new car.”
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Midwest Engine Service
Engine Repair, Engine Diagnostics, Auto Repair Services
“The exemplary service and work was very much appreciated… I would recommend Chris and crew as their personal touch makes a great deal of difference….”
Radiator Coolant Fluid Exchange Services in Janesville, WI Cost Estimates
Minimum cost
$66
Maximum cost
$250
National Average
$104
$109
$163
Typical price range is based on 360 cost profiles
Why these companies made our list
Is this page useful? Yes
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FAQ
Can I book a coolant change online in Janesville?
Online booking is offered by 3 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.
What customers near Janesville say
- “Friendly and affordable, got me in quickly and took care of me.” — customer of Jefferson Quick Lube
- “Friendly, family owned shop. They treat you like family and the prices are great.” — customer of Jefferson Quick Lube
- “Great service, friendly, the work was done quickly and I left with exactly what I wanted significantly cheaper than any other place that quoted me!” — customer of Five Star Lopez Auto Service
- “They were able to fit me in quickly, great communication (thorough & responsive), Nick was super friendly and helpful” — customer of J and S Auto Care Specialists
- “Midwest was able to get it looked at and repaired in a timely manner and very responsive.” — customer of Midwest Engine Service
Excerpts from public reviews of the mechanics listed on this page.