Racoon Removal

Seems a family of raccoons decided to set up house under our back porch (I think there are four of them, two young 'uns).

Does anyone have a recommendation for a removal service (We are in Ballard if that makes a difference)?

We've tried a few things we've read about to get them to leave (sprinkling epsom salts around, putting flashing lights out) but they seem to like their spot.