Affordable Diesel Road Service
“I recommend this service I had a flat tire and they came fast and service was fast they are really nice people they top tier I give them 5 stars!!!!”
Best Truck Repair in Janesville, WI
15 mechanics listed · 7 in Janesville · 2 open 24/7 · 3 open weekends · all 15 rated 4.5+
Data verified October 20, 2026
J and S Auto Care Specialists
“They were able to fit me in quickly, great communication (thorough & responsive), Nick was super friendly and helpful...”
J & O Automotive LLC
“They went over vehicle and offered other maintenance options, some I approved and others I easily denied.”
K W Truck Auto Repair
“It's hard to find a good mechanic these days, and I trust these guys with my vehicle.”
Rock Diesel
“Always helpful and willing to work with their customers to get them the best service at the best prices!”
Dedicated Fleet Services
“Needed an emergency repair, and they got me right in and took care of the issue.”
Listed for drivers in and around Janesville, WI, these 15 shops work on medium and heavy duty trucks. What each one says about fleet accounts, road service, inspections and hours comes from its own website; ratings and quotes come from public reviews.
Area overview: Janesville, WI
Of the 15 mechanics we list here, 7 are in Janesville itself and 8 come from towns including Beloit (3, 11 mi), Clinton (3, 12 mi) and Edgerton (1, 12 mi). The mechanics on this page are rated from 4.5 to 5.0 across 824 reviews; 5 have 50 or more reviews. When customers rate these mechanics on specific qualities, they most often praise professionalism (84%), quality (81%) and value (75%). 2 are open around the clock; 3 are open on Saturdays and 2 on Sundays. 2 list staff certifications (ASE) and 1 has a BBB rating of A or A+. 10 have ten or more years of experience, the longest 82 years. 2 offer emergency or roadside call-outs; 2 offer financing; 1 gives free estimates and 2 list coupons or special offers. We have a website on file for 10 of the mechanics on this page; 8 publish a contact page and 3 list a public email. We count these figures across the mechanics on this page; distances are straight-line, and hours and prices change, so confirm the details with the mechanic before you visit.
Which truck shops listed for Janesville open overnight?
2 of the 15 shops on this page state around-the-clock operation. Overnight in this trade usually means road service and a technician on call rather than a full shop running at 3 a.m. Say on the call whether the truck is loaded and where it is parked.
ALS Diesel Inc.
“The service and knowledge is the best a family run shop and honest and prices are very very reasonable.”
All-Tech Auto Service
“They always answer my questions and explain things and I never feel like they are talking down to me, like some places do.”
Road Medic
“Always on the ready with fair recommendations and take good care of me as a woman needing someone to help me with my vehicles.”
High Velocity Diesel Performance
“High Velocity was great to deal with, delivered excellent service an follow up!”
Fearnside's Fix All
“Matt is very friendly and does great work at a competitive price.”
Bear Roadside Repair
“The mechanic helped me to make it to the truck repair shop and charged me very decent amount.”
Real's Auto Repair
“They stayed late after closing and had our truck fixed and returned to us just after midnight...”
Carroll Service
“Always able to get me in when needed, fast service and reasonable prices.”
Stueck Industries LLC
Why these companies made our list
What customers say about mechanics in and near Janesville
- “I had a brake chamber go on me in the middle of the night, and Affordable Diesel Road Service had me up and going in no time.” — customer of Affordable Diesel Road Service
- “I highly recommend ALS Diesel to anyone! Hands down the best place to take your diesel.” — customer of ALS Diesel Inc.
- “Took my truck here and not only was my truck fixed right the first time they also treated me with the up most respect and kindness.” — customer of High Velocity Diesel Performance
Excerpts from public reviews of the mechanics listed on this page.
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