Muffler Service & Auto Repair for Fort Atkinson and Janesville Wisconsin

Quality Muffler Service

Quality Muffler Service

Best parts for your vehicle

At Harold’s Muffler Service and Auto Care, we provide a myriad of services because we are not just a muffler shop. We are a full services Auto Shop.



Highly trained mechanics

Our highly trained mechanics are rated among the best in the industry.



Since 1976

Since 1976 – Serving our community in Rock, Jefferson and Dane counties for over 40 years with pride and excellence.


When You Buy a New Set of Four Qualifying Tires

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Welcome to Harold’s Muffler Service & Complete Auto Care!

Providing Quality Auto Care At Fair Prices Since 1976

Harolds Muffler & Auto Care, a family owned business, is proud to have served Fort Atkinson’s automotive needs for over 40 years. We are a full muffler service, auto repair,tire and maintenance facility. And of course we can handle any exhaust job from stock to custom. Our staff is experienced & ASE certified using the latest equipment.

We are located on Janesville Ave., close to Shopko. You can find a map, and get turn by turn directions here.

We accept most major credit cards, including visa, mastercard and discover. The next time you need auto repair, tires or maintenance, call us. 920-563-8453.

Buy Tires Online

Pay in store after installation NO CREDIT CARD NEEDED

Muffler Repair Janesville WI
Exhaust Repair Janesville WI