The good news first: the vast majority of ants found wandering through Officer homes, including black house ants and small garden varieties, pose no real threat to structural timber whatsoever. These species are drawn to food, particularly sugary or greasy residue, and their presence indoors is more about foraging than nesting inside your walls.
Black house ants, probably the most commonly seen species locally, build nests in soil, under pavers, or within garden beds rather than inside timber framing. Their visits indoors are essentially supply runs, not an attempt to establish a colony within the structure itself.