1985 Autocar — we work on any truck
If it runs diesel and needs help, we'll show up. Age is not a barrier — classic, vintage, or modern.
Construction Fleet PM — On-Site
Fleet Maintenance for Charleston Construction Companies.
When a dump truck or equipment hauler goes down, the crew waiting on it goes down too. Lowcountry Diagnostics performs scheduled preventive maintenance on your construction fleet right at the jobsite or yard — dump trucks, service trucks, and haulers kept in service so your build schedule does not slip.
- PM for dump trucks, service trucks, and equipment haulers
- Jobsite and yard service — no shuttling trucks to a shop
- Charleston, North Charleston, Summerville, Goose Creek, Moncks Corner
Vehicles We Maintain
Built for how construction fleets run
Dump trucks & roll-offs
Engine, hydraulics, air brakes, and PTO checks so haul units keep moving material instead of sitting idle.
Service & mechanic trucks
Crane, compressor, and welder-equipped trucks kept serviced so your field techs stay equipped and productive.
Equipment haulers & lowboys
Tractors, lowboys, and trailers inspected — brakes, tires, lights, and air system — before hauling heavy iron.
Support pickups & water trucks
Diesel pickups, flatbeds, and water trucks maintained on the same visit to keep the whole jobsite fleet ready.
Why Jobsite PM
Keep the crew working, not waiting
Construction runs on schedule. A hauler that misses a load or a service truck stuck in a shop line can stall an entire crew and push your timeline. On-site preventive maintenance keeps units in the rotation by servicing them where they park — at the yard before dawn or on the jobsite between phases.
We build PM intervals around how hard your trucks actually work, catch wear before it becomes a roadside failure, and leave a written record for every unit. That means fewer breakdowns during a pour, a haul, or an inspection, and predictable uptime you can plan around.
Why operators call us
- Mobile service where the truck is sitting
- Testing before parts replacement
- Clear written findings and next steps
- Commercial diesel and fleet-focused support
- 24/7 Charleston-area availability
What's Included
A PM visit built for construction duty
1. Engine & fluids
Oil, filters, coolant, fuel filters, and DEF serviced on intervals set for heavy jobsite duty cycles.
2. Brakes & air system
Air brakes, chambers, slack adjusters, and leaks checked on loaded units that see hard stops all day.
3. Tires & wheel ends
Tread, sidewalls, wheel ends, and torque checked to prevent blowouts on haul roads and highways.
4. Hydraulics & PTO
Dump bodies, hydraulic lines, and PTO systems looked over so lifting and dumping stays reliable.
5. Electrical & fault scan
Batteries, charging, lights, and a scan for stored codes to catch aftertreatment and engine faults early.
6. Written record per unit
Each truck gets documented findings and recommendations to support DOT compliance and next-interval planning.
Keep your Charleston construction fleet running.
Call or text Lowcountry Diagnostics to set up on-site PM for your trucks and haulers.
Construction fleet maintenance questions
Can you service our trucks at the jobsite?
Yes. We come to the jobsite or your yard and perform PM on dump trucks, service trucks, and equipment haulers on location, so crews are not held up waiting on a shop.
What construction fleet vehicles do you maintain?
Dump trucks, roll-offs, service and mechanic trucks, equipment haulers and lowboys, water trucks, flatbeds, and the diesel pickups that support your crews. We handle most heavy- and medium-duty makes.
Can PM be scheduled around our build schedule?
Yes. We schedule service around your work — early mornings, weekends, or between phases — so maintenance happens while trucks are down and crews stay productive.
Do you handle DOT-related inspections too?
Yes. We perform brake, air system, and safety checks that keep units road-legal, and provide written records for each truck. Call or text (843) 310-0995.
Request Construction Fleet Maintenance
Tell us about your fleet and where the trucks stage. We will follow up to set up jobsite or yard PM. For urgent needs, calling or texting is fastest.
Truck down on the job? Call or text (843) 310-0995.
Recent Repair Photos
A look at the repairs we make
Real field photos from Lowcountry Diagnostics — from engine diagnostics and electrical to hydraulic, HVAC, and heavy-duty truck service, handled on-site across the Charleston area.
Reviews