Cosmic Automotive
“I always take my Audi there for any issues they give me best service and very great customer service.”
Best Radiator Repair in Fremont, CA
15 technicians listed · all 15 in Fremont · 6 open weekends · all 15 rated 4.5+
Data verified October 16, 2026
ABC Auto Repair & Smog
“I highly recommend ABC Auto Repair & Smog for their exceptional service and commitment to customer satisfaction.”
Fremont Auto Center
“Special shout out to Martin for taking his time walking me through everything that they would do to my car, why and when it would be completed.”
Asap Automotive
“Ron and his crew did a great job on my 67' Mustang and gave great service and very friendly and welcoming!”
High Street Automotive
“Im new out here but it's one of the be if not the best shop in the bay hands down”
Trackspec Autosports
“The attention to detail and care these folks take is unmatched in my experience.”
Listed for drivers in and around Fremont, CA, 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: Fremont, CA
All 15 technicians we list here are in Fremont itself. We have 19 technicians in Fremont on file; this page shows the highest-rated 15. The technicians on this page are rated from 4.6 to 5.0 across 2,031 reviews; 9 have 50 or more reviews. The topics that come up most in reviews of the technicians on this page are "price", "communication" and "estimates". 6 are open on Saturdays and 2 on Sundays. 3 list staff certifications (ASE) and 5 have a BBB rating of A or A+. 10 have ten or more years of experience, the longest 48 years. 3 list coupons or special offers. We have a website on file for 10 of the technicians on this page; 7 publish a contact page; 3 list a public email and 3 take bookings online. We count these figures across the technicians on this page; hours and prices change, so confirm the details with the technician before you visit.
Are the longer-established listed shops a safer bet?
10 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.
ZBT Auto Services
“The tech was very polite and also did a visual inspection and noticed some issues with my car and came up with recommendations for next service.”
Aztek Auto Repair
“All the mechanics are very respectful and professional and they all give excellent service to their customers and one of the things I like about Aztek they are very honest…”
Perfection Auto Repair
“Nice people at the Perfection Auto Repair provided excellent services to their customers.”
Mission Auto Repair
“Great experience excellent customer service and great pricing reliable auto shop👍🏽”
Dave's Foreign Auto
“They are absolutely amazing I will always recommend them, I went there as my car was having acceleration issue and my car was not going beyond 40mph but just fixed it in minutes and pin pointed the exact problem.”
RST Automotive Inc.
“They have kept our vehicles operational and safe, and we wouldn't think of taking our business to anyone else”
Concept Auto Repair
“Very friendly and professional, sent pictures and updates of work, and finished a complex job within 3 days.”
Centerville Radiator & Auto
“I was greeted by the staff in a inviting and professional manner..”
Best Auto Service
“I highly recommend Best Auto Service as your auto repair shop.”
Why these companies made our list
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