Hear from Our Customers
Every hour your truck sits idle costs you money. We know that downtime can run $1,000 to $2,000 per day, which is why our mobile repair service comes directly to your breakdown location along I-75, US-24, and throughout London, MI.
You won’t wait for a tow truck or sit in a shop queue. Our certified technicians arrive with the tools, parts, and expertise to diagnose and fix the problem on-site. From diesel engine issues to brake failures, we handle the repairs that get you back to earning.
When your livelihood depends on keeping wheels turning, you need a repair service that understands the urgency. That’s exactly what you get with our mobile semi truck repair—fast response, expert service, and the peace of mind that comes from 40+ years in the business.
J&J Truck & Trailer Repair has been London’s go-to emergency repair service since the early 1980s. As a family-owned business, we understand that your truck isn’t just equipment—it’s how you make a living.
Led by Dr. Phillip Marin, who holds three Ph.D. degrees in Diesel Engineering, Drivetrains, and Metal Alloys, our team brings serious expertise to every repair call. We’ve seen every type of breakdown you can imagine, from simple tire changes to complex transmission failures.
Located strategically along the I-75 corridor, we serve the heavy freight traffic that moves through London daily. Whether you’re an owner-operator hauling through Michigan or managing a fleet based in the Detroit metro area, we’re the local experts who know these roads and understand the unique challenges truckers face in our region.
When your truck breaks down, every minute counts. Here’s how our mobile semi truck repair service works in London, MI.
First, you call our 24/7 dispatch line and describe the problem. Our experienced team asks the right questions to understand your situation and location along I-75, US-24, or anywhere in the London area. We’ll give you an honest assessment of what we can handle on-site versus what might need shop work.
Next, our mobile repair unit heads directly to your location, typically arriving within 45-60 minutes. Our trucks carry diagnostic equipment, common parts, and all the tools needed for roadside repairs. We perform a thorough diagnosis to identify the root cause, not just the symptoms.
Finally, we complete the repair using quality parts and proven techniques. You get a clear explanation of what was wrong, what we fixed, and any preventive measures that could help avoid similar issues. Payment is straightforward—no hidden fees or surprise charges.
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Our mobile semi truck repair service covers the full range of issues that can strand you on London’s roads. We handle diesel engine diagnostics using advanced computer systems to read fault codes and identify problems quickly. Brake repairs are a specialty—from air brake adjustments to ABS sensor replacements.
Transmission and drivetrain problems don’t have to mean an expensive tow to Detroit. Our mobile welding capabilities let us handle axle repairs, frame work, and other structural issues right where you’re parked. We also provide essential services like tire changes, battery jump-starts, and fuel delivery.
London’s position on the I-75 freight corridor means we see everything from local delivery trucks to long-haul rigs heading to Canada. This experience has taught us that quick, reliable repairs keep Michigan’s economy moving. Whether you need emergency roadside assistance or scheduled fleet maintenance, we bring the shop to you with the same quality service you’d expect from a traditional repair facility.
We typically arrive within 45-60 minutes of your call, depending on your exact location and current traffic conditions on I-75 or local roads. Our dispatch system prioritizes emergency calls, and we maintain strategic positioning throughout the London area to minimize response times.
Our 24/7 availability means you’ll get the same fast response whether your truck breaks down at 2 PM or 2 AM. We understand that every minute of downtime costs you money, so we make getting to your location our top priority.
Our mobile units handle about 80% of common breakdowns right at your location. This includes diesel engine diagnostics, brake repairs, electrical issues, tire changes, battery problems, fuel system work, and minor welding repairs. We carry diagnostic computers, common parts, and professional-grade tools.
Major engine rebuilds, transmission overhauls, or complex body work typically require shop facilities. However, we’ll give you an honest assessment over the phone and only recommend towing when absolutely necessary. Our goal is always to get you moving again without the time and expense of a tow.
Yes, we provide competitive fleet pricing for companies operating multiple trucks in the London area. Our fleet services include scheduled maintenance, priority emergency response, and volume discounts on parts and labor.
Fleet customers also receive detailed service records for each vehicle, which helps with maintenance planning and DOT compliance. Whether you run three trucks or thirty, we can customize a service plan that keeps your fleet moving while controlling costs.
Safety comes first. If possible, move your truck completely off the roadway, especially on busy routes like I-75. Turn on your hazard lights and set out reflective triangles or flares if you have them. If you can’t move the truck safely, stay inside with your seatbelt on until we arrive.
Gather any relevant information about the problem—when it started, any warning lights, unusual sounds or smells. This helps our technicians diagnose the issue more quickly once we’re on scene. Don’t attempt repairs yourself, especially on air brake systems or electrical components.
Our team is certified to work on all major truck brands including Freightliner, Peterbilt, Kenworth, Volvo, Mack, and International. Dr. Phillip Marin’s advanced degrees in diesel engineering and drivetrains ensure our technical knowledge stays current with evolving truck technology.
We regularly update our diagnostic equipment and training to handle newer electronic systems while maintaining expertise in older mechanical systems. Whether your truck is a 2024 model with advanced emissions controls or a 1995 workhorse, we have the knowledge and tools to get it running properly.
We accept cash, all major credit cards, and most fleet fuel cards for your convenience. For fleet customers, we can also work with your established billing procedures and payment terms. Our pricing is transparent with no hidden fees—you’ll know the cost before we start any work.
We provide detailed invoices that break down parts and labor costs, which many owner-operators need for tax purposes. If warranty work is needed later, we stand behind our repairs and will return to address any issues covered under our service guarantee.
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