Will County is northeastern Illinois’s freight backbone — I-80, I-55, and a network of routes moving an enormous volume of commercial freight.
J&A Fleet Maintenance provides mobile diesel repair and emergency roadside service in Will County and the surrounding Will County. When your truck can’t move, we come to you — roadside, yard, or dock — with a quoted rate and a certified tech.
Across Will County, that means dispatch coverage from New Lenox and Romeoville to Joliet, Bolingbrook, and every warehouse corridor in between — anchored by our Rockdale and New Lenox shops for full-facility work.
Our Services
- Diesel & Engine Repair — Root-cause diagnostics and repair for all Class 6–8 diesel engines — no guesswork, no unnecessary parts.
- Semi-Truck Roadside Assistance — 24/7 mobile dispatch across northeastern Illinois — certified techs come to your truck, not the other way around.
- Air Brake Repair — Chambers, valves, compressors, and frozen lines — complete air brake system service and DOT compliance.
- Electrical & Alternator — Advanced diagnostics trace electrical faults to the source — wiring, batteries, alternators, and charging systems.
- Cooling, Radiator & A/C — Radiator, coolant system, and cab A/C repair — keeping engines and drivers running at the right temperature.
- Transmission Repair— Automatic and manual transmissions, differentials, and clutches — diagnosed before a single part is ordered.
- Welding & Fabrication — Certified welders for frame repair, trailer structural work, and custom fabrication — shop or roadside.
Pricing — Same Rate Whether You’re Stranded or Not
J&A Fleet quotes our hourly rate, minimum, and any surcharges before we dispatch. The price doesn’t change because you’re stranded. Overcharging a customer in a tough spot is something you’ll never experience with J&A Fleet.
Shop Work — Rockdale and New Lenox shops
For repairs requiring a full shop facility — transmission rebuild, major engine work, welding and fabrication, DOT inspections — our Rockdale and New Lenox shops handle the work. We coordinate transport if needed.
Fleet Maintenance Programs in Will County
Running a fleet through the Will County / I-80, I-55, US-30, US-52 corridor? Ask about our mobile maintenance program. We come to your yard on a schedule, keep your units DOT-compliant, and reduce the unplanned downtime that eats into margins.
We’re a fleet partner across the whole county, not just a wrench at one address. Ask about the mobile maintenance program if you’re running units through multiple Will County stops — it’s built to cut downtime and control costs, not just generate another invoice.
A Will County breakdown call usually comes down to one of a few things — electrical faults that kill a start, air system leaks that trip a low-air warning, or cooling system failures that force a driver to pull over before the engine overheats. Whatever it is, Will County fleets get the same root-cause process every time: inspect, diagnose, quote the rate, then fix it — not the other way around. No parts get swapped until we know exactly what’s wrong and why.
A roadside call in Will County is also a chance to catch small problems before they become out-of-service violations — worn brake linings, a cracked marker light, a slow air leak that hasn’t tripped the buzzer yet. Our certified techs flag what they see instead of just fixing what you called about. Fleets running Will County regularly can set up a standing maintenance schedule so those checks happen on our timeline, not a breakdown’s, with the same upfront rate every visit and no surprise line items at the end.
Down in Will County?
Tell us where the truck is and what it’s doing. We’ll give you an ETA and a quoted rate — then get a certified tech moving toward you.”
