01
Preventative Maintenance
On-site PM services that keep your equipment out of the shop and on the road.
Mobile diesel repair · San Antonio
HEAVY DUTY.
WHERE YOU
NEED IT.
On-site preventative maintenance, diagnostics and repair for big rigs, fleets, trailers and farm equipment — done where your equipment sits.
$135 / hourStraightforward rate
On-site serviceWe come to you
San Antonio& surrounding areas
KEEP
ROLLING.Big rigs · Fleets · Trailers
Farm & heavy equipment
ROLLING.Big rigs · Fleets · Trailers
Farm & heavy equipment
Preventative maintenanceComputer diagnosticsDPF regenHydraulic repairFleet maintenanceBrake repairTrailer repairA/C servicePreventative maintenanceComputer diagnosticsDPF regenHydraulic repairFleet maintenanceBrake repairTrailer repairA/C service
01 / Capabilities
Built for the work that can’t wait.
Field service for the systems that keep trucks and equipment moving. Practical diagnostics, hands-on repair and scheduled maintenance without dragging your equipment across town.
02
Hydraulic Diagnostic & Repair
Pumps, lines, cylinders and pressure issues diagnosed and repaired.
03
Electrical Troubleshooting
Shorts, no-starts, lighting and wiring faults traced to the source.
04
Computer Diagnostics
Professional scanner tools and laptop diagnostics for fault codes and live data.
05
DPF Regen & Repair
Forced regens, sensor issues and aftertreatment repair work.
06
Heavy Duty, Farm & Ranch
Tractors, loaders and heavy equipment serviced where they sit.
07
Over the Road Operators
Fast turnaround for drivers who need to get rolling again.
08
Fleet Maintenance
Scheduled service programs for fleets of any size.
09
Brake Repair
Air brake service, shoes, drums and adjustments done right.
10
Tires & Suspension
Suspension components, airbags, alignment issues and tire work.
11
Minor Trailer Repair
Lights, brakes, landing gear and other trailer fixes.
12
A/C Diagnostic & Recharge
Full A/C diagnosis, repair and recharge so the cab stays cool.
13
Charging System Repair
Alternators, starters, batteries and cable repairs.
14
Coolant System
Flushes, radiators, hoses, water pumps and overheating fixes.
Your truck doesn’t make money sitting still. We bring the tools, diagnostics and experience to the equipment — so you can keep moving.
02 / Who we serve
One service truck. A lot of ground covered.
From owner-operators to working fleets and equipment in the field, A&F is built around the people who can’t afford unnecessary downtime.
01
Over the Road
Owner-operators and drivers who need a practical answer and a fast path back to the road.
02
Fleets
Local and regional fleets needing consistent, scheduled maintenance and responsive repair.
03
Farm & Heavy Duty
Agricultural and construction equipment serviced where it works — in the field, yard or jobsite.
03 / Straightforward rates
No surprise shop fees.
Honest hourly pricing for mobile, on-site preventative maintenance and repair. Call for availability and tell us what you’re working with.
$135per hour · mobile service
San Antonio, Texas + surrounding areas
Need it fixed where it sits?
Request Service
Tell us what’s going on.
Send A&F the details before you call. Add the truck or equipment, location and what it’s doing so Felipe and John can see what you need.
Submitting opens a pre-filled group text to Felipe Cruz · (210) 769-9064 and John Cruz · (210) 769-9061. You review the message, then tap Send.