Lawless Auto L.l.c.
“They also follow up to ask how our vehicles are running after a few days.”
Best Coolant & Radiator Flush in Valparaiso, IN
10 mechanics listed · 5 in Valparaiso · 4 open weekends · 7 rated 4.5+
Data verified October 18, 2026
MTI Service Center (Valparaiso)
“I appreciated visiting a service center who didn't use high-pressure scare tactics to attempt to talk me into services the vehicle did not need.”
Certified Auto and Transmission
“Fixed my car on such short notice and did such a great job!!”
C & C Auto Repair
“I've had other work done to my car and was very pleased.”
Brown Tire
“Came to them with leaking tire close to the end of the day and they got both my tires patched up and reasonably priced!”
Portage Tire & Auto Service
“They identified that the run was slightly bent and were able to fix it.”
Listed for drivers in and around Valparaiso, IN, 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: Valparaiso, IN
5 of the 10 mechanics we list are based in Valparaiso; the other 5 serve Valparaiso from towns including Merrillville (16 mi), Portage (8 mi) and La Porte (19 mi). The mechanics on this page are rated from 4.1 to 5.0 across 1,657 reviews; all 10 have 50 or more reviews and 7 are rated 4.5 or higher. When customers rate these mechanics on specific qualities, they most often praise professionalism (96%), quality (88%) and value (73%). 4 are open on Saturdays. 4 list staff certifications (ASE) and 3 have a BBB rating of A or A+. Domain records put 6 websites of the mechanics on this page at ten or more years old; the oldest dates from 2001. 3 offer financing; 2 give free estimates; 3 are 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; 8 publish a contact page; 4 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?
5 of the 10 shops sit in Valparaiso and the rest come from other towns within 25 mi. This is planned maintenance rather than an emergency, so booking a little further out costs you nothing but the drive.
Adams Automotive
“He took his time with me, he answered all of my questions, and never once made me feel like I was just another dollar to be made.”
Cannon's Automotive Service+
“Cannon's went out of their way to tow us, get us and all of our college luggage from a hotel, look at the car quickly, and make a general assessment and estimate of the scope of the repair.”
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Aamco Transmissions & Total Car Care
“I had a transmission put in the price was good, and they had the work done in half the time that I was quoted.”
American Complete Auto Repair
“My daughter's vehicle broke down and they were able to get it recovered and repaired the same day.”
Why these companies made our list
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