
Auto Repair in Watertown, WI
Your Trusted Automotive Service Partner Since 2022
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Professional Auto Repair Services Built on Years of Experience
MCM Auto Repair brings over 15 years of automotive expertise to the Watertown community, combining extensive fleet maintenance experience with personalized customer service. What sets us apart in the auto repair industry? Our commitment to fixing your vehicle correctly the first time, using quality parts and proven diagnostic techniques. Owner Mark McMillen founded the shop in early 2022 after recognizing the growing demand for honest, reliable automotive services in the area. Located at 321 Summit Ave, Watertown, WI 53094, we serve both retail customers and local car dealerships with comprehensive repair solutions. Our approach focuses on transparency and quality workmanship, ensuring every customer receives the same level of professional service that built our reputation in fleet maintenance.













Explore Our Automotive Services

Comprehensive Automotive Solutions with Advanced Diagnostic Capabilities
Our expert technicians utilize state-of-the-art diagnostic equipment to accurately identify issues across all vehicle makes and models, from routine maintenance to complex electrical problems. With years of combined experience in auto repair, we specialize in engine diagnostics, brake service, transmission work, and automotive key programming services. Our facility handles everything from oil changes and tire rotations to major engine rebuilds, always using OEM or equivalent quality parts to ensure lasting repairs. We maintain strong relationships with multiple car dealerships throughout the region, demonstrating our expertise in automotive key programming and advanced vehicle systems. Whether you drive a domestic or import vehicle, our team has the knowledge and equipment necessary to diagnose problems quickly and implement effective solutions that keep you safely on the road.
Quality Service That Builds Long-Term Customer Relationships
At MCM Auto Repair, we believe in doing the job right the first time, which means no shortcuts and no comebacks. Our commitment to excellence extends beyond technical expertise to include honest recommendations, fair pricing, and exceptional customer service that has earned the trust of Watertown residents and surrounding communities. We accept multiple payment options including cash, all major credit cards, and digital payment methods like Apple Pay and Google Pay for your convenience. Our shop operates Mon – Fri: 8:30AM – 5PM and remains Closed Weekends, allowing us to focus entirely on providing quality automotive services during business hours. When you need reliable auto repair services, call or text us at (920) 238-6686 to schedule your appointment. We welcome anyone who wants their vehicle fixed correctly and values honest, professional automotive service that prioritizes safety and reliability over quick fixes.
Makes We Service
