Cornerstone Precision Auto LLC
Licensed LLC, Veteran-Owned, A/C Certified, Dealer Grade Mobile Diagnostics and Repairs. Serving Charleston County, Berkeley County, Dorchester County and surrounding areas within the Charleston Metro Area.
Veteran Owned, Founded on Faith, Integrity, and Excellence
At Cornerstone Precision Auto LLC, we believe that details matter, but the mission does too. Built on a foundation of faith, integrity, and excellence, we provide precise, dependable automotive care that drivers can trust. Every repair is handled with careful attention to detail, because we know small things make a big difference in safety and performance.
Our mission goes beyond fixing cars-- Its about serving people and Jesus Christ. With honesty, Transparency, and a heart for the Lord and community. We treat every customer like family and every vehicle like our own. At Cornerstone Precision Auto, you'll receive quality service and a shop you can always count on.
Professional Mobile Automotive Repair & Diagnostics
Complete Vehicle Diagnostics & Electrical Testing
Dealer-grade diagnostic scanning, wiring repair, and advanced troubleshooting for check engine lights, drivability issues, sensors, modules, and communication faults.
Brake, Suspension, & Steering Systems
On-site service for pads, rotors, calipers, ball joints, tie rods, and suspension components. We handle both standard and electronic brake systems with precision.
A/C & Heating System
Licensed A/C service including refrigerant recovery, recharging, leak detection, heater core, and pressure testing. Stay comfortable in every season.
Engine Repair & Performance
Timing chain and belt replacement, tune-ups, intake and valve work, engine swaps, and refreshes. Quality repair that restores power and reliability.
Cooling & Fuel Systems
Radiators, water pumps, thermostats, hoses, fuel pumps, and injectors — repaired or replaced onsite to keep your vehicle running at its best.
Maintenance & Inspections
Preventive maintenance, oil and filter changes, pre-purchase inspections, and overall vehicle health checks - all done at your location.
Ben is amazing! Great communication, great customer service, great work, I truly can’t say enough positive things. Highly recommend him, and will be working with him forever if possible.
Read more
Nathan Gainey
19 days ago
Ben was very helpful. Prompt, responsive, and went the extra mile to get our car serviced and running again. I’d recommend him highly and will call him again in the future!
Read more
Ryan McMillen
25 days ago
Would give 6 stars if I could. Ben is fast, transparent and very reasonably priced. Will be using cornerstone going forward.
Read more
Evan Bradford
1 month ago
Ben did an outstanding job. He worked though every potential issue before addressing the main one in order to save me a part. He took me step by step what the issue was and resolved it in a more than timely manner. Will be contacting him for all me vehicle need!
Read more
Dylan Good
1 month ago
Ben was great! Would highly recommend him. He was responsive and worked with our busy schedule to come directly to our house. An overall great experience and would definitely use him again.
Read more
Lauren Spivey
2 months ago
Ben was able to fix my whole front suspension within 24 hours of contacting him. Kid does good work.
Read more
DRE DRE
2 months ago
Hours
08:00 AM – 07:00 PM
08:00 AM – 07:00 PM
08:00 AM – 07:00 PM
08:00 AM – 07:00 PM
08:00 AM – 07:00 PM
08:00 AM – 07:00 PM
12:00 PM – 07:00 PM
Book an Appointment or Request a Quote
Tell us about your vehicle and what’s going on — we’ll respond quickly with a quote and schedule a time that works best for you.
Whether you need diagnostics, A/C service, or engine repair, Cornerstone Precision Auto LLC brings professional, dealer-grade service right to your doorstep.
We value your feedback.
Your reviews help others find reliable mobile repair they can trust.