KNA Security has quickly become the premier choice for home security products within the northern corridor of Perth. So what makes us stand out from the crowd Serving homes and businesses from Harrisdale to Perth and up to Lancelin, our passionate team of experienced professionals are fully licensed, insured and committed to delivering the highest level of customer service and workmanship. But don’t just take our word for it, make sure you check out Facebook and Google profiles where we have 400+ 5 star reviews!