Fumigation is necessary in Portsmouth when pest infestations are too extensive or deeply embedded for conventional treatment methods to reach. The most common reason for residential fumigation is drywood termite infestations that have spread to multiple areas within the structural framing, since these termites live entirely inside the wood. Fumigation may also be required for severe powderpost beetle infestations or commercial facilities with widespread stored product pest problems. The process involves sealing the entire structure and introducing a gaseous fumigant that penetrates every void, wall cavity, and wood member. It is the most thorough pest elimination method available but requires vacating the property for two to three days. A licensed fumigation specialist can evaluate your situation and determine whether fumigation is the best solution.