Reliable Trailer Repair San Antonio: When You Need It Most
Your trailer stays safe and road-ready with expert repair, strong parts, and support that reaches every corner of San Antonio.
Our Services
A trailer fault can stop your load in seconds. Truck Masters steps in with onsite and mobile repair support built for drivers who cannot afford downtime.

Tires
We fit, balance, repair, and replace tyres with load-rated options that support stable handling and even wear.

24/7 Service
Round-the-clock roadside support that reaches your location fast and restores drivability without delay.

Semi-Truck Alignments
Precision alignment that corrects axle angles, improves steering response, and extends tyre life under heavy loads.

Computer Diagnostics
Advanced diagnostic tools that read fault codes, assess sensor data, and pinpoint issues with accuracy.

DEF System Repairs
Targeted repairs for pumps, sensors, heaters, and dosing units to keep your DEF system efficient and compliant.

DOT Inspections
Full DOT checks that verify braking, lighting, structural integrity, and documentation for road compliance.

Cargo Tank Inspections
Detailed tanker assessments that review valves, shells, fittings, and pressure integrity for safe operation.

Semi-Truck AC Repairs
Fast AC repair that restores cooling performance through system checks, leak detection, and component replacements.

Pro Trailer Repair San Antonio Texas
Fast Support. Skilled Work. Road-Ready Results.
Truck Masters conquer your biggest issues: blown tires, weak rear brakes, rolling off alignment, wiring faults, and pressure-system problems. Our team replaces the tire, adjusts light fittings, resets brake performance, checks suspension points, and tunes axles for smoother handling. Our truck repair in San Antonio makes your trailer stable, compliant, and ready for the haul.
Trailer Onsite Services
What We Check. What We Fix. What Keeps You Moving?
- Structural checks on the trailer body and connection points
- Axle and hub reviews to keep the trailer steady under load
- Brake system checks for chambers, air lines, and proper adjustment
- Bearing play checks to prevent premature failures
- Suspension checks for worn bushings or uneven load support
- Light and wiring checks for safe road visibility
- Servicing of pins, valves, and locking hardware
- Dolly lubrication for smooth hook-and-drop movement
- OEM parts used for all replacements

Trailer Inspection & Trailer Repair Services in San Antonio Texas
Truck Masters keeps trailers road-safe across San Antonio with inspections that focus on braking, suspension, axles, hubs, and electrical systems.
Our technicians review load points, tires, wheels, and coupling hardware to catch wear before it becomes a roadside issue. Lighting and wiring go through full continuity checks for reliable performance.
When truck repairs are needed, we fit OEM parts and complete the work with the precision drivers and fleets count on across South Texas.

Fleet Maintenance Support
Need reliable trailer repair in San Antonio Texas for your large fleet? We offer:
- Clear updates on repair status, roadside calls, and shop work
- Documented records of all services, parts used, and issues found
- PM schedules are tracked to help reduce breakdowns and downtime.
- Detailed inspection notes for brakes, tires, suspension, and electrical systems
- Organized histories that support budgeting and maintenance planning
- Direct communication with technicians for quick decisions
- Reliable documentation to keep every unit compliant and road-safe
Onsite Truck Repair San Antonio Texas Built for Busy Fleets
Truck Masters supports drivers and fleets all over San Antonio and the wider South Texas region with our full mobile service units ready to handle breakdowns, repairs, and routine maintenance onsite.
Every service truck has all the tools, diagnostics, and equipment needed to address damage from heavy impacts in terms of repairs to tires, brakes, electrical faults, DEF issues, and alignment concerns. Most repairs are conducted on the spot, thereby reducing downtime and enhancing the productivity of your fleet.

frequently asked questions
What kind of trailers do you repair in San Antonio?
Utility trailers, semi-trailers, tankers, and commercial fleet units are examples of units we handle. Our technicians deal with brakes, tires, electrical systems, suspensions, axles, and structural issues for all major types of trailers.
How quickly can a technician reach me if my trailer breaks down?
Response time depends on both traffic and distance, but most calls within the San Antonio area receive quick dispatch. For urgent roadside issues, we always prioritize locations nearest to the stranded vehicle to reduce downtime.
Can you do on-site repairs of brake or axle issues?
In most instances, yes. We repair on location brake chambers, air lines, slack adjustors, hubs, bearings, and axle-related issues unless the damage requires heavy shop equipment.
Are OEM parts used for repairs of trailers?
Yes, we trust in OEM parts for matching performance standards and enhancing long-term reliability.
Can you help fleets with ongoing maintenance?
We support fleets with scheduled PMs, inspection reports, tire programs, brake checks, and regular communication regarding unit status. This helps reduce breakdowns while keeping the trailers ready for daily routes.
Call us with your truck location and issue
Our team reaches you fast and offers mobile truck repair service.
Book a Service
Fill out the form below and Truck Masters’ team will get back to you quickly to assist with your service or repair request.
