Baking soda, hydrogen peroxide and bleach all do a good job of removing skunk odor but may need multiple applications and time. Fresh air also helps remove skunk smell from a house.
Following an encounter with a skunk, the first thing is to keep from spreading the skunk's musk, which is oily and clings to textile fibers and wood. Strip off affected clothing as quickly as possible, and try not to touch anything else while taking it to the laundry area. Wash it in the hottest water and strongest detergent recommended in the manufacturer's cleaning directions, and repeat if necessary before air drying outside. Leave shoes, belts and other articles that can't be laundered outside to air. Wash affected skin with soap and hot water.
Make a solution of 1 quart of 3 percent hydrogen peroxide, 1/4 cup of baking soda and 1 teaspoon of liquid detergent in a large open container to prevent the mix from foaming up and running over the sides. Use this or soap and water to clean any textiles contaminated by skunk musk. A solution of 1 cup of bleach in 1 gallon of water does a good job of deodorizing wood or concrete but may discolor the surface. While cleaning, open all windows and doors and turn on a fan to provide ventilation and allow as much of the odor to escape as possible. Finish by changing the house's air filters.