Mad Hatter Auto Service
“Stopped in to check out a car they had I was interested in, he offered me a deal I couldn't refuse!”
Best Coolant & Radiator Flush in Cedar Falls, IA
10 mechanics listed · 4 in Cedar Falls · 2 open weekends · 9 rated 4.5+
Data verified October 18, 2026
Beyer Motorsports Truck & Auto Repair
“Found my water pump was bad, showed pics to prove it, and still had me back on the road in about two hours.”
Brakes Plus
“The manager was able to work with my budget and everything was done in a timely manner.”
Fulks Performance L.l.c.
“Communication was great and found him to be knowledgeable, trusty worthy and reasonably priced.”
Evansdale Truck & Trailer
“They got me in and replaced it an out to be able to load in waterloo in time.”
Boubin Automotive Service
“The SUV runs 100% better, and the check engine light is off for a change.”
Listed for drivers in and around Cedar Falls, IA, these 10 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.
Area overview: Cedar Falls, IA
4 of the 10 mechanics we list are based in Cedar Falls; the other 6 serve Cedar Falls from towns including Waterloo (5 mi), Hudson (8 mi) and Evansdale (11 mi). The mechanics on this page are rated from 4.0 to 4.9 across 1,913 reviews; 7 have 50 or more reviews and 9 are rated 4.5 or higher. 2 are open on Saturdays. 1 lists staff certifications (ASE) and 3 have a BBB rating of A or A+. 8 have ten or more years of experience, the longest 44 years. 1 offers financing; 1 is family- or locally-owned and 4 list coupons or special offers. We have a website on file for all 10 of the mechanics on this page; all 10 publish a contact page; 2 list a public email and 2 take bookings online. 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.
Why does this page include shops elsewhere?
4 of the 10 shops sit in Cedar Falls and the rest come from other towns within 30 mi. This is planned maintenance rather than an emergency, so booking a little further out costs you nothing but the drive.
The Shop
“Over the top service from the minute you walk in the door until you pick your car up!”
Sprung's Automotive
“Not much more that you could ask for.”
Red Shed Auto
“Dean looked over our 2012 Ford Taurus and was very easy to work with and was honest about what needed to be fixed.”
Cy & Charley's
“They tell you how long things will take and have always been accurate.”
Why these companies made our list
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