On-Site Fleet Service Built Around Uptime.
Sigma Fleet Services brings scheduled maintenance, inspections, diagnostics, and eligible repairs directly to your operating location. Mobile service reduces unnecessary vehicle movement, consolidates fleet activity, and helps keep vehicles available for productive work.
Move the Service—Not the Entire Fleet.
Sending vehicles to a repair facility consumes more than shop time. Employees must transport vehicles, arrange return transportation, coordinate keys, adjust operating schedules, and monitor work across multiple locations. Mobile fleet service brings eligible work directly to the vehicles, allowing maintenance to be coordinated around the operation rather than forcing the operation to work around the shop.
Reduce Vehicle Movement
Limit unnecessary trips between the fleet's operating location and an outside repair facility.
Consolidate Maintenance
Complete eligible work across several vehicles during one coordinated service visit.
Protect Productive Time
Reduce employee time consumed by transporting vehicles and waiting for service.
Improve Fleet Visibility
Identify open defects, maintenance requirements, and shop-level repairs while the technician is already on-site.
Practical Service Delivered at Your Facility.
Mobile-service eligibility depends on the vehicle, requested work, site conditions, required equipment, parts availability, and operating market.
Preventive Maintenance
Scheduled oil and filter service, fluid checks, lubrication, maintenance inspections, and other eligible services based on mileage, duty cycle, and vehicle requirements.
Learn moreAnnual Inspections
Eligible commercial-vehicle inspections performed at the customer's location, with identified defects documented for review and correction.
Learn moreDiagnostics
Initial assessment of warning lights, starting concerns, charging-system issues, drivability complaints, and other reported vehicle conditions.
Learn moreDefect Resolution
Eligible field repairs for documented vehicle defects that can be safely and effectively completed without specialized shop equipment or extensive disassembly.
Learn moreBattery, Lighting & Electrical
Testing and eligible replacement of batteries, lamps, connections, and selected starting or charging-system components.
Learn moreMaintenance Documentation
Completed-service records, identified defects, technician findings, and recommended follow-up work organized for fleet review.
Learn moreSome Repairs Belong in the Shop.
Mobile service is not the correct solution for every vehicle condition. Sigma identifies shop-level requirements during intake or on-site evaluation and helps route the vehicle into the appropriate service workflow.
Appropriate for Mobile Service
- ✓Preventive maintenance
- ✓Annual inspections
- ✓Vehicle-condition reviews
- ✓Basic diagnostics
- ✓Battery and lighting concerns
- ✓Eligible minor repairs
- ✓Defect documentation
- ✓Multi-vehicle service campaigns
May Require Shop Service
- →Extensive mechanical repairs
- →Repairs requiring specialized lifting equipment
- →Alignment or advanced diagnostic equipment
- →Major component replacement
- →Work requiring significant disassembly
- →Conditions that cannot be safely repaired on-site
Turn Mobile Visits Into a Maintenance System.
Enterprise and high-utilization fleets gain the most value from mobile service when visits are planned around a defined fleet list, operating schedule, maintenance cadence, and approval process.
Build a Mobile Fleet ProgramPlanned Service. Clear Execution.
Define the Service Scope
Review fleet, requested work, vehicle types, service priorities, operating schedule, and site conditions.
Confirm Vehicle Eligibility
Determine which work can be completed safely and effectively on-site and identify shop-level requirements.
Schedule and Stage Vehicles
Coordinate the service window, vehicle list, access requirements, keys, approvals, and operating contact.
Perform and Document Service
Complete and document eligible maintenance, inspections, diagnostics, and repairs.
Route Follow-Up Work
Organize defects or repairs requiring additional parts, approvals, or shop equipment into the next-step workflow.
Prepare the Location for Efficient Service.
Service Area
Provide a level, accessible work area with sufficient clearance around the vehicles being serviced.
Vehicle Access
Stage scheduled vehicles, provide keys, and identify unit numbers before the visit begins.
Site Contact
Designate an authorized employee who can answer questions, approve eligible work, and coordinate vehicle movement.
Operating Schedule
Identify when vehicles will be available and when they must return to productive service.
Safety and Restrictions
Communicate facility rules, traffic patterns, security requirements, environmental restrictions, and site-specific hazards.
Parts and Information
Provide available maintenance history, reported defects, mileage, and other information needed to prepare for the visit.
Mobile Service Across Demanding Operations.
Delivery, municipal, utility, HVAC, skilled-trade, and multi-location fleets can use mobile service to coordinate eligible maintenance and inspections around operating windows and vehicle availability.

Local support across four operating markets.
Sigma Fleet Services coordinates mobile fleet service from Pittsburgh, Zelienople, Northampton, and Binghamton. Available services, travel coverage, scheduling, and vehicle eligibility vary by market.
Build a recurring mobile-maintenance program around your vehicles, operating schedule, facility, and service requirements.
Coordinate eligible maintenance, inspections, diagnostics, and field repairs around how and where your fleet operates.

