Security Screen Doors vs Fly Screens: What's the Difference and Which Do You Need?
If you have just had a scare with an attempted break in, or you can already hear the mosquitoes gearing up for another Central Coast summer, you have probably typed some version of the same question into Google: do I need a security door or a fly screen? The honest answer is that they solve two different problems, and a lot of local homeowners end up paying for the wrong one, or missing out on protection they actually need.
At Xquisite Blinds & Shutters we have spent more than 25 years fitting doors, screens and window furnishings across the Central Coast, from Terrigal to Woy Woy, Erina to Gosford. This guide breaks down security screen doors, security window screens and standard fly screens in plain English, explains what the updated Australian Standard actually means for your home, and gives you a simple way to check whether a quote you have received is for a genuine, compliant security door.
These three products get mixed up constantly, partly because some suppliers use the terms loosely. Here is what each one is actually built to do.
A standard fly screen is a lightweight mesh screen fitted to a door or window to keep insects out while still letting fresh air in. Fly screens on the Central Coast are especially popular on alfresco doors, back doors and bedroom windows near bushland or waterways, where mozzies and flies are a year round nuisance rather than just a summer one. Fly screens are not designed to stop a determined intruder. Standard aluminium or fibreglass mesh will tear or pop out of its frame with a sharp knock, which is exactly what it is designed to do so it does not trap anyone inside during a fire.
A security window screen looks similar to a fly screen from a distance, but it is a completely different product underneath. It uses a heavier gauge, tamper resistant mesh (commonly marine grade stainless steel or aluminium) clamped into a reinforced frame, and it is built to resist cutting, prying and forced impact. A genuine security window screen still lets air through like a fly screen does, so on the Central Coast it is common to fit these instead of standard flyscreens on ground floor windows, giving you insect protection and break in resistance in one product.
A security screen door is the most heavily engineered of the three. It combines a security mesh (or, less commonly, a grille) with a reinforced aluminium or steel frame and a multi point locking system, and it is manufactured and tested to a specific Australian Standard for forced entry resistance. A genuine security screen door will also keep insects out, but that is a side benefit. Its main job is to slow down or stop someone trying to force their way into your home, while still letting you keep your front or back door open for airflow, which matters a lot in Central Coast summers.
In November 2023, Standards Australia replaced the older AS 5039:2008 with a new three part standard: AS 5039.1:2023 for the design and manufacture of security screens, AS 5039.3:2023 for how they are tested, and AS 5039.2:2024, which guides correct installation so a compliant product does not lose its protection through poor fitting.
To meet AS 5039.1:2023, a security screen or door has to pass a set of forced entry tests, including knife shear, jemmy (prying), probe, pull and impact tests, plus a corrosion test that matters even more on the Central Coast because of our salt air. A product that passes is entitled to carry an official compliance label. If a door or screen does not carry that label, it is not a certified security product, no matter what it is called on the invoice.
This matters for two reasons. First, only a genuinely compliant security door or window screen will actually perform the way you expect if someone tries to force it. Second, in the event of a break in, your insurer may ask whether the security products fitted to your home were compliant, so an uncertified "security" screen sold as the real thing can leave you exposed twice over.
For most Central Coast homes, the right combination depends on which openings you are protecting and what risk you are trying to reduce.
If you are not sure which category your home falls into, that is exactly what a free, no obligation measure and quote is for. Our team will walk your property, point out the openings we would prioritise, and explain the reasoning, not just upsell every door and window in the house.
As a general rule, price and expected lifespan increase in line with how much protection a product is engineered to provide. Exact pricing depends on size, mesh type, frame finish and how many openings you are covering, which your free measure and quote will confirm for your home.
Product
Typical Cost (Central Coast)
Typical Lifespan
Standard fly screen
Lower cost, priced per opening
5 to 10 years, mesh may need replacing sooner near the coast
Security window screen
Mid range, priced per window
10 to 15+ years with marine grade mesh
Security screen door
Higher cost, reflects AS 5039 compliant materials and testing
15+ years, often longer with a maintained frame and mesh
Maintenance is straightforward for all three products. A rinse with fresh water every few months keeps salt residue from building up on the mesh and frame, which is especially important within a few streets of the beach anywhere from Terrigal to Umina. Check that hinges, locks and rollers move freely and have them serviced if a security door starts to stick, since a door that is hard to close properly is also easier to force.
Before you sign off on any quote calling itself a security door, it is worth spending two minutes checking these five things.
This is also where 25+ years of local experience makes a real difference. Every security door we supply and install on the Central Coast meets AS 5039.1:2023, and we back our installation with an additional 3 year warranty on top of the manufacturer's warranty, so you are covered on both the product and the fit.
If you take one thing away from this guide, it is that "security door" and "fly screen" are not interchangeable terms, even though plenty of quotes on the Central Coast treat them that way. The right setup is usually a mix: certified security screen doors on your main entry points, security window screens on vulnerable ground floor windows, and standard fly screens where airflow and insect protection matter more than forced entry resistance.
The easiest way to get this right is to have someone walk through it with you, rather than guessing from a product page. That is exactly what our free measure and quote is for.
Is a fly screen the same as a security screen door?
No. A fly screen is a lightweight mesh designed to keep insects out and is not built to resist forced entry. A security screen door uses a heavier, tamper resistant mesh, a reinforced frame and a multi point lock, and it is manufactured and tested to the Australian Standard AS 5039.1:2023 for forced entry resistance.
Can a security window screen replace a fly screen?
Yes. A genuine security window screen still allows airflow and keeps insects out like a standard fly screen, while adding forced entry resistance. Many Central Coast homeowners fit these on ground floor windows instead of standard fly screens for that reason.
How do I know if a security door is genuinely compliant with AS 5039.1:2023?
Ask for the official compliance label or supporting documentation. A genuinely compliant door will have passed knife shear, jemmy, probe, pull, impact and corrosion testing, and will carry a label confirming this. If a supplier cannot show you this, treat the "security door" claim with caution.
Do I need security doors and fly screens, or just one?
It depends on the opening. Entry doors generally call for a certified security screen door, ground floor windows benefit from security window screens, and less accessible openings like upper floor windows or alfresco areas are often well served by a standard fly screen. A free measure and quote is the fastest way to get a recommendation specific to your home.
Do security doors and fly screens need extra care near the beach?
Yes. Salt air speeds up corrosion on mesh and hardware, so homes within a few streets of the coast benefit from marine grade mesh and a quick rinse with fresh water every few months to keep frames and locks working smoothly.
Talk to our team about the right combination of security and fly screens for your home. As a family owned business supplying and installing security screen doors Central Coast wide for more than 25 years, we will recommend what your home actually needs, not just what is on the price list. Book your free measure and quote today and get a straight answer, and an accurate quote, in one visit.
