If Dry-wood termites or bed bugs are the pest you are targeting, the fumigation process should completely take care of every last bug. However, it is also possible for a re-infestation of the same pest to happen somewhere down the road. Structural fumigation is not a guarantee against future infestations; it is simply used to wipe out a current pest problem. If you happen to see the same issue in years down the road, don’t think that your treatment failed. It simply means that yet another infestation has found its way into your home.