Spraying - still the cheapest option and can give up to 10 years protection if not disturbed. The key is to have the termite treatment re-applied if landscaping or paving will cover the treated area. These issues are avoided by having the termite protection 'built in' as per one of the systems shown below.

Termite Collars - used for buildings on concrete slabs. They protect the small gaps around waste pipes from termite entry. Very cost effective. Common brand: Trithor

Termite Membranes - these are tough plastic sheet membranes, rather like a damp course material. They are impregnated with termiticide to make them highly repellent and toxic to termites. They are odourless and are expected to last at least 50 years and require almost no ongoing maintenance. Typically the membrane is installed before framing and extends across the wall cavity and though the brickwork. Common brand: Trithor

Pipe Reticulation - an irrigation system designed for termiticide. It allows the easy re-application of protection, which can be especially useful if the landscaping around the building is to be covered by concrete or paving. Common brand: Altis

Termite Foam - This is rather like a gap filler foam, but it contains a repellent termiticide. It is applied as an expanding 'two pack' within the edge rebate cavity of a wall. A plastic membrane is also laid along the brickwork. This system is installed after the framing and needs a base course of bricks laid. The product is expected to last at least 50 years and requires little ongoing maintenance. Common brand: Termseal