Cat groomers?

We're not the type to keep our cat looking fancy but we do have a long-hair mutt of a cat that gets significant hairball issues if we don't get him groomed a couple of times a year. We normally go to someone who works well with cats in the Waterfront but there's a large lead-time for appointments and we waited a bit too long (and don't want to wait much longer). Can anyone recommend a local groomer who works well with cats? Our cat thanks you! PS: Thank you if you're going to suggest we groom him ourselves but he will barely let us brush him let alone get clippers anywhere near him. We appreciate it, but this is a case where we prefer to go to someone experienced.