Ants often nest in roofs, wall cavities and in house foundations, they can spoil food, destroy plant pots and cause electrical problems.
Ants live in large colonies that can vary from a few hundred to hundreds of thousands. As they populate their food needs increase and when forging for food ants leave behind an invisible chemical trail to find their way easily from their nesting place to the food source.
Even if you destroy all ants you can see, the scent of the trail is found by other ants from the colony, and so the problem will return soon after. Although ants are not known to cause serious health problems, undoubtedly ants can be one of the most aggravating pests that invade Sydney homes and businesses. So if you have just spotted an army of ants leisurely marching their way across your kitchen cupboards it is time to nip the problem in the bud.