Do Security Screens Work In Alice Springs? Types, Benefits And What To Look For

Most people don't realise there's a meaningful structural gap between a standard flyscreen and a genuine security screen. Flyscreens are designed to keep insects out. They use lightweight aluminium mesh or fibreglass that can be cut with scissors or pushed out of a frame with little effort. They provide zero resistance to forced entry.

A proper security screen is an entirely different product built to a different purpose:

• The frame is heavy-duty extruded aluminium, not a lightweight extrusion
• The mesh or grille is engineered to resist cutting, pulling and impact
• The locking system is part of the security, not just a convenience feature
• The whole assembly is tested as a unit, not assessed component by component

The distinction matters because some products marketed as "security screens" sit closer to a flyscreen in terms of actual performance. Knowing what separates them is the first step to making a sound purchase decision.

AS 5039 is the Australian Standard for security screen doors and window grilles. It sets out the minimum performance requirements a product must meet to be genuinely classified as a security screen. Testing covers three main attack scenarios: jemmy tests (forced entry with a lever), knife shear tests (cutting the mesh or grille) and dynamic impact tests (repeated kicking or striking force).

A product that complies with AS 5039 security screens testing has been assessed against each of these:

• Jemmy resistance: the screen must withstand significant levering force without the frame separating or the mesh detaching
• Knife shear: the mesh must resist cutting under lateral force
• Dynamic impact: the screen must absorb repeated blows without buckling or frame failure

This standard is the benchmark worth asking about when comparing products. If a supplier can't confirm AS 5039 compliance, that's a gap worth noting before you commit.

GGS Alice Glass & Aluminium installs two types of security screens in the Northern Territory: Invisi-Gard stainless steel mesh and diamond grille. Each has genuine strengths, and neither is the right choice for every situation.

Invisi-Gard uses 316 marine-grade stainless steel mesh retained in an extruded aluminium frame with a patented grip system. The mesh is fine enough to maintain clear outward visibility, allows strong airflow and is virtually transparent from a distance. It suits homeowners who want unobstructed views and a clean, low-profile appearance. The trade-off is that it carries a higher price point than a grille option.

Diamond grille uses a heavier-gauge aluminium grille pattern in an aluminium frame. It's a well-established, robust option that is harder to conceal as a security feature, which can itself act as a visual deterrent. The grille pattern limits visibility and airflow slightly compared to fine mesh, but it is extremely durable and handles physical wear well. For high-traffic doors or properties where aesthetics are a secondary priority, diamond grille is a practical, cost-effective choice.

Here's how the two compare on the key decision points:

• Visibility: stainless mesh offers near-unobstructed views; grille is more visible from both sides
• Airflow: both allow good ventilation; mesh is marginally better in still conditions
• Aesthetic: mesh suits modern or low-profile designs; grille has a more traditional, robust look
• Durability in dusty, UV-heavy conditions: both perform well; grille is harder to scratch
• Price point: diamond grille generally sits lower; Invisi-Gard is a premium product

Security screens in the Northern Territory face environmental conditions that are quite different from coastal Australia. Salt corrosion, a major concern in coastal climates, isn't the primary factor here. The real stressors in Alice Springs are UV intensity, extreme heat cycling and fine red dust abrasion.

The climate creates a specific set of durability requirements:

• UV degradation: powder coat finishes and seals are exposed to high UV levels year-round, accelerating fading and brittleness in lower-quality products
• Heat cycling: frames and mesh expand and contract daily through large temperature ranges, which stresses joins, fixings and retention systems over time
• Dust abrasion: fine particulate builds up in mesh, tracks and frames, wearing at surfaces and seals gradually

Stainless steel mesh and quality aluminium frames handle these conditions well, but only when the finish quality and retention system are up to standard. This is one reason why installation method matters as much as the product itself.

One of the most practical reasons homeowners invest in security screens across the Northern Territory is night ventilation. Residential cooling costs are high in Alice Springs, and the ambient temperature can drop substantially after sunset. Being able to open doors and windows overnight while the house is secured is a real quality-of-life benefit.

A compliant security screen on a door or window changes the overnight equation significantly:

• Doors can be left open behind the screen, drawing cooler air through the house
• Windows can be opened fully without leaving entry points unsecured
• Cross-ventilation is possible from multiple openings simultaneously
• Insects are kept out without relying on air conditioning



This isn't a minor lifestyle feature. Over a summer, the difference in overnight cooling comfort can be substantial. For homes without ducted air conditioning, it can be the difference between sleeping well and not.

The screen product itself is only part of the picture. A security screen installed poorly, with undersized fixings, poorly aligned locking points or inadequate frame anchoring, can underperform regardless of its specification. This is where choosing an experienced installer matters.

Key installation factors that affect security performance include:

• Frame anchoring: the screen frame must be fixed to the structural frame of the door or window opening, not just surface-mounted
• Lock alignment: multi-point locking systems only perform if the strike points are correctly positioned
• Mesh retention: the mesh must be correctly tensioned and seated in the retention system, not just pressed into place
• Clearances and gaps: any gap at the edge of a screen is a potential weak point for jemmy attack

The Security Screen Association (SSA) maintains industry standards for suppliers and installers. Working with an SSA member gives homeowners a baseline confidence that the business operates within a recognised industry framework.

Security screens vary in price depending on screen type, opening size, frame complexity and the number of openings being fitted. A single hinged door screen will cost less than a sliding screen for a large opening, and stainless steel security mesh products will generally sit above diamond grille equivalents.

Several variables affect the final cost:

• Product type: Invisi-Gard stainless mesh carries a higher material cost than diamond grille
• Opening size and shape: larger or non-standard openings require more material and customisation
• Frame condition: if the existing door or window frame needs repair or adjustment before installation, this adds to the scope
• Number of openings: fitting multiple screens in a single visit is generally more cost-efficient than returning for individual jobs

A dedicated cost guide is coming, but for a clear picture of what suits your home and budget, a measure and quote is the most reliable starting point.

Not everything sold as a security screen meets the standard required to actually resist forced entry. Knowing what to verify before purchasing helps avoid spending money on a product that won't do the job it's marketed to do.

Before confirming a purchase, it's worth asking these questions:

• Does the product comply with AS 5039? Ask for written confirmation, not just a verbal assurance
• Is the mesh or grille tested as part of the full assembly, including the frame and retention system?
• What locking system is included, and does it have multi-point locking on hinged doors?
• Is the installer experienced with this specific product?
• What warranty is offered on both the product and the installation?



Security screens are a long-term investment. A product that can't answer these questions clearly may not be worth the price, regardless of how it looks on display.

We at GGS Alice Glass & Aluminium work with Alice Springs homeowners and businesses to supply and install security screens built to Australian standards. Whether you're weighing up Invisi-Gard stainless steel mesh or diamond grille, we can walk you through the options, measure your openings and provide a clear quote. For doors and windows that add real protection, our security screens in Alice Springs are built and installed to Australian standards.

Not sure which option suits your home? Get in touch with our team for advice and a free quote. Security screens are one layer of protection. For another, read our guide to the benefits of roller shutters for home security. Many local homeowners also pair security screens with roller shutters for both ventilation and full lock-down protection.