For subterranean termites we use Termidor and 100% Results after 8+ Years. With Termidor, Termites are killed, dead. No excuses, and with a lot less waiting around. Government and other tests in the US and abroad have shown that in 8 years there has been no break or reduction in Termidor’s effectiveness. Termidor has been used in over 1,000,000+ homes in the USA. Termidor termiticide is guaranteed to eliminate 100% of the termites in your home, in 3 months or less!