For a business, vehicle downtime is the real cost of repair. A delivery van at a shop for a day is a route not run. A contractor's truck in a service bay is a crew that can't get to the job. The repair bill is small next to the revenue the vehicle didn't generate while it was gone.
A mobile fleet mechanic solves the downtime problem. The mechanic comes to your lot, works through the vehicles that need attention, and the ones that don't keep running. Preventive maintenance happens on a rotation before anything fails on the road. Breakdowns get a priority call to the yard or the job site instead of a tow.
Mobile-Car-Repair.xyz has a local mobile mechanic in 250 cities serving small and mid-sized fleets. This page covers what fleet service includes, which vehicles qualify and how it's priced.