Frankie & Johnnie's Garage
“I just needed a new gas cap for my car & they were able to get it all done before noon the same day.”
Best Radiator Repair in Naperville, IL
15 technicians listed · 10 in Naperville · 9 open weekends · 14 rated 4.5+
Data verified October 18, 2026
Sparks Complete Car Care
“The staff not only investigated and fixed the issue promptly but also provided digital records of receipts and payments, making the entire process seamless.”
Maximum Automotive
“The crew was kind and didn't disregard my opinion (very uncommon being a female), they kept me posted throughout the process (I overreact when there's an issue with my car).”
Naperville Auto Service Center
“I get my car checked and oil changed here regularly and they always provide great customer service.”
Cool Flow Automotive
“The owner was very honest about my car and the prices are very reasonable.”
Naperville Automotive Solutions
“The guys took a look at the car first to confirm size then ordered the parts and set an appointment for the work.”
Listed for drivers in and around Naperville, IL, these 15 shops repair and replace radiators and cooling system parts. What each one says about recoring, warranties and truck work comes from its own website; ratings and quotes come from public reviews.
Area overview: Naperville, IL
Of the 15 technicians we list here, 10 are in Naperville itself and 5 come from towns including Aurora (1, 6 mi), Oswego (1, 7 mi) and Downers Grove (1, 8 mi). The technicians on this page are rated from 4.1 to 4.9 across 2,077 reviews; 12 have 50 or more reviews and 14 are rated 4.5 or higher. When customers rate these technicians on specific qualities, they most often praise professionalism (95%), quality (82%) and punctuality (76%). The topics that come up most in reviews of the technicians on this page are "price", "honest" and "diagnosis". 9 are open on Saturdays. 3 list staff certifications (ASE) and 7 have a BBB rating of A or A+. 13 have ten or more years of experience, the longest 110 years. 5 offer financing; 1 gives free estimates; 4 are family- or locally-owned and 7 list coupons or special offers. 1 has Spanish-speaking staff. We have a website on file for 13 of the technicians on this page; 11 publish a contact page; 3 list a public email and 6 take bookings online. We count these figures across the technicians on this page; distances are straight-line, and hours and prices change, so confirm the details with the technician before you visit.
Are the longer-established listed shops a safer bet?
13 of the 15 shops here have been trading ten years or more. Radiator work rewards that, since the places that still recore and pressure test in house tend to be long-established and often run commercial vehicle work alongside cars.
Mike More Miles Naperville
“I might add that their prices were higher than others I previewed, but I feel I got my money's worth from the confidence and warranty that comes from doing business with them.”
Nelson's Service Inc.
“On one occasion it took less time than estimated and the actual cost was less than the estimate.”
United Car Care
“Whenever i went to get any of my work, he took full responsibility and got it done right.”
Priz Auto & Truck Repair Inc
“I have taken my truck here several times now and every time I have brought it there, they have done an awesome job!”
A-Len Automotive Service
“Is working great I do appreciate and highly recommend A-Len Automotive Service.”
Precision Diagnostics Inc
“Great work and really great prices compared to other quotes I received.”
Robinson's Auto Repair Inc
“Have been going to robinsons as long as I can remember, would trust them with my car anytime!”
3D Complete Car Care
“I am so thankful to have found such a reliable and professional establishment.”
Tuffy Tire & Auto Service Center
“She went above and beyond and made for a good experience.”
Why these companies made our list
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