KNA Security is a family-owned business servicing the northern suburbs of Perth with over 30 years of industry experience. We are one of the only home security companies in Perth that manufacture custom-built security doors and screens from our own warehouse, in Wangara. This cuts out the middleman and allows us to supply and install Perth's most durable and customisable security screens and doors direct to your home or business. Select from various mesh materials, including marine-grade stainless steel, perforated aluminium and privacy mesh. Our security windows and doors are available in hundreds of colours, including timber-look finishes. You can also add smart locks, escape screens, fall-prevention windows and pet doors. As a WA-owned company and authorised Invisi-Gard dealer with police clearance and security licenses, you can rest assured you're in good hands with KNA Security.