
5-Star Rated Service
Over 200+ five-star reviews from satisfied customers across Barrie and surrounding areas.
Expert Diagnostics
State-of-the-art diagnostic equipment and certified technicians to fix it right the first time.
Complete Auto Repair Services in Barrie
When your vehicle needs repair in Barrie, trust the experts at Gunn's Auto Service. With over 26 years of experience, we provide honest, reliable auto repair services at fair prices. Don't wait until a small problem becomes a costly repair .
Don't Wait Until It's Too Late
Schedule your appointment today. Call (705) 728-1769 or use our online booking form.
- ✓ Complete Vehicle Diagnostics & Troubleshooting
- ✓ Oil Changes & Preventive Maintenance
- ✓ Brake Service & Repair
- ✓ Engine Repair & Maintenance
- ✓ Transmission Service
- ✓ Suspension & Steering Repairs
- ✓ Tire Services & Alignments
- ✓ AC Service & Repair

More About Our Services
Our Promise to You
At Gunn's Auto Service, we stand by our work and our commitment to your satisfaction with these core principles:
- Honesty: Transparent and upfront pricing, always.
- Expertise: Over 26 years of proven auto repair excellence.
- Speed: Same-day repairs to keep you moving.
- Care: Treating your vehicle like it's our own.
Complete Auto Service Categories
Tire Services in Barrie
Complete tire care to keep you safe on Barrie's roads in all seasons. Our services include:
- Tire Balancing: Eliminate vibrations and ensure even tire wear
- Tire Changes: Seasonal changes and replacements
- Tire Repairs: Professional plug and patch services
Preventive Maintenance
Keep your vehicle running smoothly with our comprehensive maintenance services.
- Check Engine Diagnostics: Advanced computer diagnostics
- Oil Changes: Regular oil and filter replacement
- Fluid Services: Transmission fluid, brake fluid, power steering fluid, and coolant flush

Trusted by Thousands of People & Companies
At Gunns Auto, we value your feedback and strive to provide the best service possible. Schedule your appointment today and experience the difference!

I had an outstanding experience from start to finish. The staff was incredibly professional, and the receptionist was courteous and thorough in answering all my questions over the phone. The process of dropping off and picking up my car was seamless and efficient. I’ve been to many places, but this one truly stood out. Highly recommend!
Dayna B. Local Google Review