Sims Radiator Service

Sims Radiator Service has been serving the Lawrenceville metro area for decades, building a reputation as the go-to specialist for automotive cooling systems. With a near-perfect 4.9-star rating from 121 verified reviews, the shop operates Monday through Friday from 8 AM to 5 PM, with Saturday hours from 8 AM to noon. The team handles both domestic and imported vehicles, focusing on radiator repair, replacement, and modernization services for customers throughout Gwinnett County and the surrounding communities north of Atlanta.

What distinguishes Sims Radiator Service from general automotive shops is their specialization in legacy cooling systems and difficult-to-source repairs. Customer Tommy Conner praised their ability to fix a radiator that had been discontinued from production, a scenario that stumps most shops. Technician Matt and his team routinely handle R12-to-R134 refrigerant conversions, installing complete conversion kits including compressors, driers, condensers, and recharging systems. Several reviewers specifically noted the shop's honesty in diagnostics, emphasizing that they recommend only necessary repairs rather than pushing unnecessary services.

Customer stories from recent reviews paint a picture of dedicated service. When Briana Murray faced a difficult personal situation, Matt provided not only radiator work but also referred her to other reliable contractors for additional car repairs. Dave Frederick has returned to Sims multiple times over the years, consistently noting the team's friendly approach and Matt's strong communication supplemented with humor. Tina Parsons, who described herself as a sixth-generation mechanic, appreciated that the team performed a proper inspection but did not attempt to add unnecessary work to her estimate. Geoff Gill's 1993 Crown Victoria was completed in just two days, a turnaround that earned high praise for a vehicle requiring a complete refrigerant system conversion.