Don't use Prefurred Grooming. My sister and I BOTH had bad experiences with her. My dog had her ears cut, I'm talking blood, 2 times. She has awful razor burn on her neck. She got something in her eye that irritated for 3 days, but I was able to clear it up by rinsing it with saline solution. My sisters dog was not always cut the way she wanted, his face was always always too short, razor burn too...........and she's never on time......that's IF she remembers the appointment.
I did find a groomer, although not mobile, with Farmstead Kennels. Their number is 301-475-2449, the groomers name is Bronwyn. She's not on site, she comes to the kennel, but she is very good, my doggie loves her and she's always done a great job.