About Us

KNA Security is Perth's most trusted supplier and installer of high-quality security doors and security window screens for residential and commercial applications. As a family-owned and operated business with over 30 years of industry experience, you can rest assured you're in good hands with KNA. We are one of Perth's only companies manufacturing their own security doors and screens in Perth and have forged a reputation as the most trustworthy, experienced and qualified local home security company. Servicing the northern suburbs of Perth, we offer interest-free finance plans, obligation-free quotes and a truly end-to-end solution. Select from a huge range of materials, styles, colours and modern features, allowing you to tailor a solution precisely to your requirements.