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2023 Nextdoor neighborhood fave

We Auto-Know How to Fix It! With over 50 Years of Experience,

Waukesha's Most Trusted Auto & Trailer Repair Shop - Our Reviews Prove It.

We'll Steer You in the Right Direction. Trailer Repairs, Maintenance...Whatever it is,

A-1 Auto and Repair opened its doors to customers in 1973. Over 50 years later, we’ve relocated from West Allis to a state-of-the-art facility in Waukesha, WI. Some of our very first customers have stuck around with us for one reason: A-1 Auto is a family-run business offering auto and trailer services you can depend on. No funny business here.

Black four-wheel boat trailer for sale in Waukesha, WI
A-1 Auto Repair & Sales mechanic shop and trailer showroom in Waukesha, WI

Automotive Services

At A-1 Auto, we provide comprehensive diagnostic and repair services for southeast WI. Our team of experienced and skilled mechanics is dedicated to keeping your vehicle running smoothly and efficiently.

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  • Tire Replacement
  • Mufflers/Exhaust Repair
  • Suspension Repair
  • Tire Alignment/Rotation
  • Pre-Purchase Inspections
  • Engine Repair
  • Emission Diagnostics/Repairs
  • Battery Tests
  • Transmission
  • A/C Repair
  • Battery Replacement
  • Oil Change
  • Coolant Leak Repair
  • Brake Service
Automotive parts sold and serviced in Waukesha, WI

Need a Trailer?

A-1 Auto offers trailer repair services for Waukesha, Milwaukee, Racine and surrounding areas. A-1 Auto also has a large selection of new trailers and trailer parts for sale from top brands. Whether you need a utility, ATV/UTV, Watercraft or custom-order trailer, we’ve got em’!

Brands We Partner With:

Curt trailer hitchesTrailer Hitch Installation

As a platinum status CURT hitch trailer installer, we have the knowledge and experience to install CURT trailer hitches and related towing parts. Our areas of expertise include hitch selection, wiring, electrical connection installation and safety testing.