The speed of Termite Damage in which Termites can inflict to a property varies depending on several elements. Probably the biggest factor is the maturity of the colony. An established nest can have around 2 million termites and a well set out network of tunnels in and around your property. They can get in and out quickly, especially if disturbed. A colony of this size is estimated to be able to eat 500mm of 4×2 within a fortnight.
This is why we stress to follow up on recommendations given in your reports and to remove conducive environments from around your property. The smart home owner gets an annual Termite Inspection to help alert you to foraging termites.