--- title: "Auto Repair Indianapolis IN | A-1 Auto Service | Master ASE Techs" url: https://a1autoserviceindy.com/ description: "Serving Indianapolis since 1989. Master-level auto diagnostics, engine, brake, and electrical repair. Call (317) 841-1241 for transparent, reliable local service." lang: en --- Est. 1989 · Master ASE Certified # Dealer-Level Diagnostics. Independent Local Trust. Since 1989, A-1 Auto Service has delivered driver-focused maintenance and advanced repair to the Indianapolis community — dealership-grade tools with the accountability of your neighborhood shop. Call (317) 841-1241: +13178411241 Explore Our Services: https://a1autoserviceindy.com/services Visit The Shop 8170 Castleton Rd, Indianapolis, IN 46250 Shop Hours Mon–Thu 7:30a–5:30p · Fri 7:30a–5:00p Backed By Warranty Up to 3-yr / unlimited-mileage powertrain The A-1 Difference ## Not a dealership. Not a quick-lube chain. When facing a complex electrical malfunction, fluid leak, or major powertrain issue, drivers are often forced to choose between the high overhead of a dealership and the limited capabilities of a quick-lube. At A-1 Auto Service you receive master-level technical capabilities supported by nearly four decades of local trust. We answer directly to our Indianapolis customers — not a distant corporate board. 35+ Years Serving Indy ASE Master Certified 3-YR Powertrain Warranty OEM Diagnostic Access Our Services ## Full Service Capabilities Our Castleton Road facility handles complete vehicle maintenance, complex troubleshooting, and component replacement — click any service to learn more. ### Advanced Diagnostics & Electrical ### Advanced Diagnostics & Electrical Dealership-level scanners, CAN bus troubleshooting, parasitic drain isolation, and wiring harness repair. Learn More https://a1autoserviceindy.com/services/advanced-diagnostics-electrical ### Engine & Transmission ### Engine & Transmission Complete powertrain replacements from master rebuilders with up to 3-year, unlimited-mileage warranties. Learn More https://a1autoserviceindy.com/services/engine-transmission ### Heating & Air Conditioning ### Heating & Air Conditioning Full climate control service on R-134a and modern R-1234yf systems with vacuum testing and UV leak detection. Learn More https://a1autoserviceindy.com/services/heating-air-conditioning ### Routine Maintenance ### Routine Maintenance Oil changes, fluid top-offs, and belt inspections — paired with a complimentary multi-point safety check. Learn More https://a1autoserviceindy.com/services/routine-maintenance ### Under Car Specialist ### Under Car Specialist Brakes, steering & suspension, exhaust and catalytic converter replacement, plus new tire mounting and balancing. Learn More https://a1autoserviceindy.com/services/under-car-specialist ### Inspections ### Inspections Objective pre-purchase used car evaluations and thorough pre-trip highway safety inspections. Learn More https://a1autoserviceindy.com/services/inspections ### Fleet Services ### Fleet Services Priority service and on-site component stocking for local delivery vans, service trucks, and tradesperson vehicles. Learn More https://a1autoserviceindy.com/services/fleet-services Customer Amenities ## A stress-free repair experience Comfortable Lounge Clean, comfortable customer waiting room. Free Wi-Fi Complimentary high-speed internet access. Key-Drop Box Secure after-hours vehicle drop-offs. Local Rides Transportation assistance arranged on request. ## Ready to book your next service? Give us a call — we'll walk through your vehicle, your options, and the price before any work begins. Call (317) 841-1241 (+13178411241) Cookies on this site We use cookies to keep the site working, remember your preferences, and understand how it's used. See our Privacy Policy (https://a1autoserviceindy.com/privacy).