Top-Quality Auto Repair Services in Illinois
Providing quality repairs with family-owned care since 1996, J&R Service Center values every customer like one of our own.
Testimonials
Our Reviews
"This shop went above and beyond to make sure my vehicle was safe and running the way it should. I will be forever grateful for the honest work they did and at a very fair price. I recommend them to anyone. Even if you have to drive out of your hometown. They are worth it."
by Amber Berg
"Our alternator went out on the way to Chicago and we ended up stopping by. They were able to fit us in same day and were able to fix it for us at a reasonable price. Very friendly customer service and I felt like I was in good hands!"
by Janus Esclair
"Best auto repair/tow shop ever! The lengths they went to help me out was incredible. Hard to find people that are this great anymore. Lucas even gave me rides to and from my hotel due to my car being down. Do yourself a favor and call no other shop around!"
by Hunter Lien
Get to Know Us
About J&R Service Center
Family-Owned Since 1996
At J&R Service Center, we’ve proudly provided quality repairs and honest service to Diamond, Gardner, and surrounding communities since 1996. Founded by Jeff Lee, a Master Technician by age 21, our shop quickly earned a reputation for getting the job done right the first time. Our family-owned roots and commitment to treating every customer like family remain the foundation of our business today.
Two Locations, One Commitment to Excellence
With two convenient locations—Diamond specializing in general auto repair and Gardner offering both complete auto repair and medium- to heavy-duty truck services—we’re equipped to handle everything from personal vehicles to commercial fleets. Whether you need routine car maintenance, diesel diagnostics, heavy-duty towing, or emergency roadside assistance, you’ll receive the same trusted service and expert care at both locations.

A Legacy Built on Quality and Trust
What started as a small two-bay shop in Gardner has grown into a trusted multi-location service center known for solving problems others can’t. Since 1996, J&R Service Center has built a reputation for honesty, friendly service, and quality repairs that stand the test of time. Many of our original customers still rely on us today, a reflection of the lasting relationships and trust we've earned over the years. We are proud to still offer the same personal service that helped build our foundation.
Committed to Our Community
Supporting our community has always been at the heart of what we do. We proudly sponsor local sports teams, participate in food drives, and donate to area fundraisers and charities. When you choose J&R Service Center, you're not just choosing expert auto repair—you’re supporting a local business that gives back to the community it calls home. We believe strong communities are built by businesses that care beyond the doors of their shop.
What We Do
Automotive Services
Expert Auto Service in Illinois
Brake System Repair
Keep your vehicle safe and responsive with expert brake system repair, essential for maintaining control and reducing stopping distances in any driving conditions.
Heating & Air Conditioning
Ensure year-round comfort and clear visibility with professional heating and A/C services, vital for safe driving during extreme temperatures and weather changes.
Transmission Install & Rebuild
Protect your vehicle’s performance and longevity with precise transmission install and rebuild services, critical for smooth shifting and reliable power delivery.
Why Choose Us
Benefits and Amenities
Experience, Trust, and Quality You Can Count On
At J&R Service Center, we combine decades of hands-on experience with a commitment to honest service and high-quality repairs. Our ASE Certified Master Technicians take pride in delivering reliable results backed by a 3-year/50,000-mile warranty, ensuring your confidence every time you visit.
Honesty in Every Repair
Clear, trustworthy service every time.
Commitment to Quality
Repairs done right for lasting results.
Respect for Every Customer
Every customer and vehicle matters to us.
Brands We Work On
Domestic, Asian, and European Vehicle Service
Trusted Auto Care Experts in Illinois
At our Diamond, IL location, we specialize in comprehensive automotive repairs for passenger vehicles. From oil changes to complex diagnostics and repairs, our ASE Certified Master Technicians have the experience and training to keep your car running at its best. We welcome vehicles of all makes and models and offer a full range of maintenance and repair services tailored to your needs.
Our Gardner, IL location focuses on medium and heavy-duty trucks, offering specialized services including 24-hour mobile truck repair. Whether you operate a single commercial vehicle or manage an entire fleet, we provide the expertise, equipment, and dedication to keep your trucks performing reliably on the road.
Tips & News
Auto Repair Tips and Insights
Helpful tips and advice from J&R Service Center
Questions & Answers
Frequently Asked Questions
Get Directions
Auto Repair Shop Near Me
Trusted Car Repair and Maintenance in Illinois and Surrounding Areas
Located in Diamond and Gardner, IL, J&R Service Center proudly serves as your reliable destination for expert automotive and heavy-duty truck repairs. Whether you need routine maintenance for your car or specialized mobile truck services, our skilled ASE Certified Master Technicians are here to deliver outstanding care backed by a 3-year/50,000-mile parts and labor warranty.
Our convenient locations make it easy for drivers across Grundy County and surrounding areas to access trusted, family-friendly automotive services.
- Diamond
- Wilmington
- Verona
- Reddick
- Minooka
- Rockdale
- Gardner
- Braceville
- Mazon
- Campus
- Morris
- Elwood
- Coal City
- South Wilmington
- Essex
- Symerton
- Emington
- Manhattan
- Braidwood
- Dwight
- Godley
- Channahon
- Kinsman
- Joliet