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.
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.
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.
Engine & Transmission
Engine & Transmission
Complete powertrain replacements from master rebuilders with up to 3-year, unlimited-mileage warranties.
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.
Routine Maintenance
Routine Maintenance
Oil changes, fluid top-offs, and belt inspections — paired with a complimentary multi-point safety check.
Under Car Specialist
Under Car Specialist
Brakes, steering & suspension, exhaust and catalytic converter replacement, plus new tire mounting and balancing.
Inspections
Inspections
Objective pre-purchase used car evaluations and thorough pre-trip highway safety inspections.
Fleet Services
Fleet Services
Priority service and on-site component stocking for local delivery vans, service trucks, and tradesperson vehicles.
A stress-free repair experience
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