Vehicle Repair & Maintenance Services. We Come to You. At Knight's Mobile Services, we do whatever it takes to keep your fleet vehicles on the road, working for you-our customer. We are a full-service commercial vehicle company. We can repair your fleet vehicles when we come to you. We can go to the job site to save you and your employees time and money. We also service and repair diesel trucks and boats. As your fleet service provider, we can manage your fleet for you, so you can focus on your core business, not your vehicles. We will minimize your downtime and get you back on the road quickly! Our fleet repair and maintenance services are mobile.