The service here is outstanding! We have spent a year trying to fix an issue on our diesel motorhome. Cummings tried but they charged us an outrageous fee and we still had the problem. We took it to several diesel mechanics in our town. Still no luck. We were refered to TriSand by former in-laws and they found the problem in minutes and had it fixed in less than two hours! Devon was our mechanic and he is fantastic. As long as Devon is there and we need service, we will go back to TriSand!