Ken’s Lawn Service will do both routine maintenance and specific one-off jobs. I think their recurring service is limited to just cutting the grass; I don’t know if they offer complete landscaping on a routine basis, such as continual gardening. But we’ve used them for annual pruning and clean up and they did a great job.
For larger trees, we’ve also used Davie’s Tree Service. They also did a great job trimming back one of our larger trees so that it continued to thrive after the trimming.