My lesson learned on removing skunk odor from a garage: The only effective solution is to physically cut out and remvove the material contaminated by the skunk's spray. I'll spare you the long version of the story but there were no detergents, disinfectants, deodorizers or other chemicals that would eliminate the odor. Even after a three-day, $250 professional ozonator rental the scent remained. Neither were painting or applying polyurethane as sealers effective. After several months with no mitigation and the garage basically unusable, I took a Sawzall and cut out all of the contaminated wood flooring, sills, studs and siding, and replaced them all with new lumber. That was a big job but solved the problem. I wasted a lot of time trying many recommended remedies before ripping out the affected material.
