How do subterranean termites get into a house?

Very easily. All they need is an opening 4.0mm wide. They may enter directly from the soil, or they may build airtight tubes leading from their colony in the soil to the wood of your house. They usually commute daily between the wood and their colony.

Master Builders

Mungalby P/L QBSA lic no: 1242732

Termidor