Silencieux GMS Longueuil Auto Mécano
“The owner very friendly and sincere, very honest he does everything for you between two customers”
Best Radiator Repair in Longueuil, QC
24 technicians listed · all 24 in Longueuil · 6 open weekends · 16 rated 4.5+
Data verified October 18, 2026
Entrepot Du Silencieux GL
“They are really good, they took me at the last minute, they communicated well and it was quick.”
Les Services d'Auto Alex Plus
“Really helped me out to get my car to pass inspection, honest and hardworking and find a way to fit you in.”
Autoxpert
“Super great mechanic, knows his stuff well and he will take his time to explain to you everything.”
Groupe VF Auto
“Excellent service and above all very good expertise, I would not go anywhere else.”
MSP Auto Electrical
“If a part doesn't need to be changed, we won't suggest you do it!”
Listed for drivers in and around Longueuil, QC, these 24 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: Longueuil, QC
All 24 technicians we list here are in Longueuil itself. We have 35 technicians in Longueuil on file; this page shows the highest-rated 24. The technicians on this page are rated from 3.9 to 5.0 across 4,756 reviews; 21 have 50 or more reviews and 16 are rated 4.5 or higher. The topics that come up most in reviews of the technicians on this page are "price", "honest" and "professional". 6 are open on Saturdays. 13 have ten or more years of experience, the longest 24 years. 1 offers emergency or roadside call-outs and 3 list coupons or special offers. We have a website on file for 16 of the technicians on this page; 13 publish a contact page and 5 list a public email. 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?
13 of the 24 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.
Garage Longueuil Mécanique Patrick Keighan
“Never been disappointed or had an additional surprise on an invoice without them calling me first to confirm if I wanted this addition!!”
Garage Donald Viens
“These are people who take the time to listen to the customer and ensure that we leave satisfied.”
Mécanique Auto Longueuil
“Claude helped me out when I was down, he fixed everything in 1 day and I felt that he cared about his customers!!”
Cle De La Reparation
“Very good service and very professional and fast”
Canadian Diesel Pro
“Excellent service and very helpful, had Lb7 duramax injectors rebuilt truck runs like new”
Pneuxpert
“I personally thank J-Pierre & Mathieu in service as well as Yanick in parts for their professionalism!!!”
Carrosserie Longueuil
“Appointment obtained within a reasonable time, compliance with the planned deadline and impeccable final job!”
Garage Mags SBJ
“Don took really good care of my mag, after I hit a curb (left a major scratch).”
Garage Triple B Inc Auto Mécano
“The team was very professional and welcoming from the moment I arrived.”
Garage Bujold
“There are never any unpleasant surprises at the checkout, the garage manager is transparent with the repairs to be carried out.”
Luc Marcil Auto Centre Enr
“Trusted, honest, professional and competent garage!”
Radiateur Pneu Alain Trudel et Lapalme
“These are a familiar garage, the mechanics are very attentive people, to be honest, go take a look, these are cheaper elsewhere, everything is perfect”
Garage Autotech S.M.
“Always on time, and easy to get an appointment.”
Fourgons Rive Sud Inc
“The best in the very professional personal field”
Advance EFI Performance Inc (Turbo)
“Impeccable service and very fast service always ready to serve the customer according to their availability and courtesy car”
Nitro Garage
“They'll set you up and repair things that most mechanics would charge you an arm and a leg to replace.”
Garage Lafinesse
“I recently had my oil changed and I couldn't be happier with the experience.”
Garage Marcel Bolduc
“Merci David pour la prise en charge et aussi pour l'algérien qui était accueillant”
Why these companies made our list
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