"Saving Perth Homes From Break-Ins"

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Security Screens


Number 1 in Repeat and Referral Customer Satisfaction

Security screens provide more than just security. They give you a way to securely leave your windows open for airflow, as well as being pet proof and durable.

KNA are one of the few security screen window companies that manufacturer screens in Western Australia, because of this you are dealing factory direct.

We have complete control from measure to fit, all our employees are licenced and we are fully insured for your peace of mind.

With one of the largest ranges in Western Australia we have a security screen to fit your budget and home.

Security Screens Perth


KNA Security is a leading supplier of security screens Perth customers can rely upon. 

All of our window screens are manufactured right here in Perth and are specifically designed to withstand our harsh coastal weather conditions. Furthermore, all screens are made to meet and exceed the Australian Security Standards which include impact, knife and jemmy testing. They are custom made-to-measure in a quality-controlled factory, which ensures that they are installed quickly and fitted perfectly

Having one of the largest ranges of security solutions available means we can cater to every budget without compromise. We even have interest free* set and forget payment plans to make securing your home even easier!

More About KNA Security

We are proud to be one of Perth’s most trusted security screen companies. We give people what they want at a competitive price and we continue to provide high-quality service long after the product is fitted. With confidence in our product and service and our clear communication you’ll never receive a pressure sell from us.

It sounds fairly simple in words, but actually doing it is what sets us apart from our competition and it’s what has got us where we are today. Following this blueprint has created a huge flow-on effect. Our customers recommend us to family, friends and online – this is what builds our business. We encourage everyone to search any review site or social media platform and read what our customers have to say

We’re not a company that is happy to just pass Australian standards, we consider these a starting point. We’ve set our standards higher and test our security products annually by putting them through impact tests that exceed the Australian standards by up to 20 times!

We’re also a complete security solutions company and can supply you with CCTV, alarms and security roller shutters.

Security Screens

“Doing the right thing by our clients isn’t rocket science and it is what has built KNA Security Screens Perth to where it is today.”

KNA Security Founder, Wayne Wright


Every year in WA, almost 30,000 homes are broken into and surprisingly this is more than 50% more than the national average per capita.

The most popular items stolen include jewellery, laptops and mobile phones. Items that are most precious or hold important personal information.

The days of the flimsy old fly screens are over, they offer no deterrent for would-be criminals. You need to protect your home with the strongest and most reliable screens on the market.

Security window screens have also come a long way in terms of decorative appeal. at KNA Security, we have hundreds of powder coat colours and timber look frames that will not only compliment your home in terms or colour, they will actually add an element of style.

Window Security Screens


Whilst most companies have only one residential stainless steel security screen system that passes Australian Standards, we have three. These include:

Invisi-Gard Security Screens Perth

This is the absolute premium in security screens and comes backed by a fifteen-year warranty. Using a superior grade stainless steel mesh, we are able to produce a security screen that looks great, is highly secure and corrosion resistant. Invisi-Gard is also well suited for larger screens that require more structural strength. This product passes and exceeds Australian Standards.

Invisi-Maxx Security Screens Perth

A commercial style frame that is designed to withstand severe weather. It has the largest gauge frame of our range and can be used in category 4 cyclone areas. It will offer maximum impact protection from wind-borne debris and can protect your premises in wind speeds of up to 356km/hr. It is well suited for extremely large windows. 

More Options & Hardware

We also offer three aluminium mesh security systems and a grille system. Grille security screens, like the popular Diamond Grille, provide a barrier against intruders and bugs and can be custom made to suit any windows, as well as hinged doors and sliding screen doors.

Whilst the main focus of our security screens is the screen itself, we also take a lot of care to ensure our security screen locks are of premium quality. Locks are often forgotten about during the buying process, but a cheap lock will succumb to wear and tear much quicker and will no doubt cause plenty of frustration.

Our locks are made by Swedish Lock manufacturer Assa Abloy. Not only is Assa Abloy the world’s largest lock manufacturer by sales volume, it is also the parent company behind Lockwood, Whitco and many other brands.


The price of your security screen is determined by a number of factors. These include type, colour, configuration, size and whether any framing is required.

A higher security rating or any additions like framing will attract a higher price.

To get a more in-depth description of our pricing and specifications for each security screen, see the Security Screen Prices section.


The team at KNA Security have been in the doors and window industry for over 20 years. Whilst we feel lucky that we’ve enjoyed success, we know it’s not just luck. We work hard to ensure our products meet, and exceed, industry standards.

When you decide it’s time to buy, make sure you choose a security screen that is designed to handle Perth’s harsh coastal weather conditions and that all parts of your screen, including the locks, are of premium standard.

To find out what our customers are saying about KNA Security, visit our Facebook page or one of the many review sites online.


Premium Security, Maximum Airflow & Light

Combining the strength of stainless steel with the beauty and flexibility of aluminium, Invisi-Gard offers extreme clarity and enhanced security.

Key Benefits – Woven marine grade stainless mesh. Highest clarity of vision in the range. Suitable for high corrosion environments. Cyclone tested. 100’s of powder coated colours to choose from.

Mesh: 316T Stainless Steel

Warranty: 15 years *

Security Screens Perth Western Australia
KNA Security Screens Perth Western Australia


Highest Grade Security, Designed for Cyclonic Conditions, Maximum Airflow & Light

This is a product designed to handle cyclonic conditions and offers maximum protection from wind-borne debris impacts. Invisi-Maxx can protect your premises in wind speeds up to 356 km/h.

Key Benefits – Woven marine grade stainless mesh. High clarity of vision. Suitable for high corrosion environments. Cyclone tested. 100’s of powder coated colours to choose from. 

Mesh: 316T Stainless Steel

Warranty: 15 years *

Invisi-Gard Authorised Dealer
InvisiMax Ratings


High Security, Affordable, Modern Design, Good Privacy

Alu-Gard is the all aluminium security screening solution for Australian conditions. It provides security, clarity and strength. It is also corrosion resistant and looks amazing.

Key Benefits – Aluminium frame. Suitable for high corrosion environments.100’s of powder coated colours to choose from.

Mesh: 6063 Aluminium

Warranty: 7 years *

Alu-Gard Logo
Alu-Gard Ratings


High Security, Good Privacy, Fitted in a Stylish Frame with no Visible Fixings on the Front or Rear Face

This is the latest in aluminium security. It retains all the benefits of Alu-Gard, but with a new frame without rivets.

Key Benefits – Aluminium frame. Suitable for high corrosion environments.100’s of powder coated colours to choose from.

Mesh: 6063 Aluminium

Warranty: 7 years *

Alu-Gard Logo
Alu-Gard Edge Ratings


Affordable, Multiple Options for Standard Flywire, Petmesh or Privacy Mesh

The Classic Grille has been a staple of Australian homes for many decades now. It provides a great deal of security and is perfectly suited to a wide range of window applications.

Key Benefits – Aluminium frame. Corrosion resistant. Mesh upgrades available. 100’s of powder coated colours to choose from.

Warranty: 7 years *

Frequently Asked Questions

Yes, we hold all relevant licences to supply and install security products. We hold a Security Agents Licence, 3 Security installer licences and 3 Security consultants licences. This ensures we are qualified, police cleared and fully insured.

All our security windows pass the impact tests required by the Australian Security Standards, we also conduct our own testing that surpass that required by the security standards.

All our security doors pass the knife shear tests required by the Australian Security Standards, we also conduct our own testing.

We have lots of standard colours that usually suit window frames, then we can powder coat on request to 100’s of different colours. Powder coating does take anywhere up to 7 working days extra. We also now have timber look security doors.

Yes, all our security products are also available as security doors. 

Good question! We have escape screens, these are fully secure from the outside while allowing egress from inside.

Yes, we have payment. Generally Interest Free plans from 6 months to 24 months.

For a limited time, we are offering a special offer** on each of our types of security window screens. Learn more about our security screen prices or simply fill in the form below to schedule an obligation-free measure and quote at your home or business.

* View warranty terms & conditions.

** Special offer price not available on 6, 12, 18 or 24 month no interest ever finance plans. If under $2,000 it can be paid off over 5 fortnight’s using ‘Humm Small Things’.

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Why KNA Security?

With a solid reputation for providing quality products and exceptional customer service, KNA Security have become the number one choice in Perth in our industry.







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