Security Shutters vs Burglar Bars — Which Protects Your Garden Route Home Better?
Burglar bars have protected South African homes for decades. But aluminium security shutters are replacing them across the Garden Route — and the reasons go beyond looks.
Should you choose security shutters or burglar bars for your home?
- Aluminium security shutters replace burglar bars, curtains, and blinds in a single louvred panel with a 3-pin locking mechanism that secures top and bottom simultaneously
- Burglar bars cost less upfront but offer no light control, no privacy adjustment, and no insulation — and steel models corrode quickly in coastal conditions
- Security shutters are recognised by most South African short-term insurers as a qualifying security barrier, and estate agents report they add resale value rather than detracting from it
- On the Garden Route, salt air and humidity accelerate rust on steel burglar bars — powder-coated aluminium shutters resist corrosion without repainting
- Custom Blinds has installed over 2,000 aluminium security shutters across Knysna, George, Plettenberg Bay, Sedgefield, and Mossel Bay since 2010 with zero corrosion-related warranty claims
- Shutters tilt open for airflow and natural light while remaining locked — burglar bars are fixed and cannot adjust
“I stopped counting how many clients ask me to remove burglar bars and replace them with shutters. The conversation has changed — people want security that does not punish the room.”
Duncan KaneFounder, Custom Blinds — 20 years experience across the Garden Route
What are aluminium security shutters?
Aluminium security shutters are louvred panels manufactured from architectural-grade aluminium, fitted into window and door openings with a built-in locking system. When locked, the top and bottom pins engage simultaneously — typically protruding 45 mm into the wall and floor — making the panel extremely difficult to lever or force. The louvres tilt to control light, airflow, and privacy, and can be powder coated in white, charcoal, grey, or bronze to match any interior.
Unlike decorative indoor shutters, security shutters are engineered specifically to resist forced entry. Reinforced louvre attachment mechanisms grip tighter under force, and tamperproof stile covers prevent removal of individual blades. They function as a complete window treatment: security barrier, light control, privacy screen, and insulation layer in one product.
Security shutters are available in hinged, bi-fold, and bypass configurations, fitting standard windows, wide openings, stacking doors, and even commercial shopfronts. Custom Blinds manufactures and installs aluminium security shutters across the Garden Route with a 7-year warranty on all components.
What are burglar bars and how do they work?
Burglar bars are steel or aluminium grilles fixed to window frames — either internally or externally — to physically block entry through the opening. They come in horizontal, vertical, cottage-pane, and lattice designs. Some are fixed permanently; others slide or swing open for emergency escape. In South Africa, burglar bars are the most common residential security measure and have been installed on homes for over 40 years.
The protection level depends entirely on material quality and installation. Cheap mild steel bars can be cut in under a minute with a basic hacksaw. Higher-grade options use hardened steel, polycarbonate clear-view panels, or stainless steel mesh in aluminium frames. Prices range from entry-level cottage bars at a few hundred rand per window to premium woven-mesh systems costing several thousand.
The limitation is functional: burglar bars cannot adjust. Once fitted, they block a fixed percentage of light and view permanently. They offer no privacy control, no insulation, and no weather protection. On the coast, untreated or poorly galvanised steel bars rust visibly within 2–3 years.
Security Shutters vs Burglar Bars — Full Comparison
| Feature | Aluminium Security Shutters | Steel Burglar Bars |
|---|---|---|
| Material | Architectural-grade aluminium, powder coated | Mild steel, galvanised steel, or stainless steel |
| Locking | 3-pin lock, top and bottom engagement (45 mm pins) | Fixed or basic padlock/key lock |
| Light control | ✓ Tilting louvres — full range | ✗ Fixed — no adjustment |
| Privacy | ✓ Adjustable — closed for full privacy | ✗ Always visible through bars |
| Airflow | ✓ Open louvres while locked | ✓ Permanent airflow (cannot close) |
| Insulation | ✓ Closed louvres reduce heat transfer | ✗ No insulation value |
| Coastal corrosion | Aluminium does not rust; powder coat resists salt air | Steel rusts within 2–3 years without maintenance |
| Maintenance | Wipe with damp cloth; occasional silicone on hinges | Repaint every 2–3 years; sand and treat rust spots |
| Insurance | Recognised by most SA short-term insurers | Recognised (quality dependent) |
| Resale impact | Adds value — estate agents treat as premium upgrade | Neutral to negative — buyers often remove them |
| Emergency escape | Unlock with key from inside — full opening | Fixed bars: no escape. Sliding: limited opening |
| Aesthetics | Clean, architectural — replaces curtains and blinds | Industrial — visible barrier on every window |
| Cost per window | Higher upfront (custom manufactured) | Lower upfront (standard sizes available) |
Why are Garden Route homeowners replacing burglar bars with shutters?
The shift from burglar bars to security shutters on the Garden Route is driven by three forces: coastal conditions, lifestyle expectations, and resale value. Knysna, Plettenberg Bay, and George experience salt-laden air, high humidity, and strong UV — conditions that degrade steel rapidly. Homeowners who fitted galvanised burglar bars five years ago are already dealing with rust stains on walls, flaking paint, and weakened joints.
Aluminium does not rust. Powder-coated aluminium resists salt air, UV fading, and moisture without repainting. Custom Blinds has maintained security shutter installations across the Garden Route since 2010, and in 15 years of coastal work, has recorded zero corrosion-related warranty claims. That is not a marketing figure — it is the maintenance record.
The lifestyle factor matters equally. Garden Route homes are designed around natural light and outdoor connection. Burglar bars darken rooms and obstruct views. Security shutters tilt open to let light flood the room while remaining locked — the view stays, the security stays, and the bars disappear.
Estate agent feedback: When selling Garden Route properties, agents consistently report that aluminium security shutters are treated as a premium upgrade in listing descriptions. Burglar bars, by contrast, are often flagged for removal by buyers before transfer. Shutters protect your home and protect its value.
Do insurance companies recognise security shutters in South Africa?
Most South African short-term insurers recognise aluminium security shutters as a qualifying security barrier. The shutters meet the physical deterrent criteria that insurers assess: a locking mechanism, resistance to forced entry, and coverage of the full window opening. Some policies offer reduced premiums when security shutters are installed on all accessible openings, though the discount varies by insurer and policy type.
Burglar bars are also recognised — but the quality threshold matters. Cheap, poorly secured bars that can be bent or cut easily may not satisfy your insurer’s requirements. Before installing either product, request confirmation from your insurer that the specific product qualifies under your policy. Custom Blinds provides installation certificates for insurance purposes on every Garden Route project.
How much do security shutters cost compared to burglar bars?
Security shutters cost more upfront than standard burglar bars. Aluminium shutters are custom manufactured to each opening — measured, built, powder coated, and installed by a specialist — which makes them a higher initial investment than off-the-shelf steel bars. However, the total cost of ownership over 10 years often favours shutters because they eliminate the need for separate curtains, blinds, and ongoing rust maintenance.
Burglar bars range from budget cottage bars (a few hundred rand per window) to premium stainless steel mesh systems (several thousand per opening). Security shutters sit above that range but deliver security, light control, privacy, and insulation in a single product — replacing three or four separate purchases.
Custom Blinds provides itemised quotes after a free site assessment. Every quote includes manufacturing, powder coating, hardware, installation, and the 7-year warranty. There are no deposits — you pay on completion. For a specific quote on your Garden Route property, WhatsApp Duncan on 079 523 5407.
When should you keep burglar bars instead?
Burglar bars remain the right choice in certain situations. If budget is the primary constraint and you need basic window security across many openings quickly, standard burglar bars deliver functional protection at a lower cost per window. They also suit rental properties where the owner needs durable, low-risk security that tenants cannot easily damage or remove.
For inland properties with minimal corrosion risk, galvanised steel bars can last 10–15 years with periodic repainting. And if your windows are small, high, or rarely accessed — such as bathroom fanlights or garage vents — basic bars may be all the protection needed.
The decision often splits by room. Many Garden Route homeowners fit security shutters on the living areas, bedrooms, and stacking doors where light control and aesthetics matter most, and retain or install burglar bars on utility windows, garages, and less visible openings. Custom Blinds installs both security shutters and security screens, and can advise on a mixed approach during a free site visit.
How long does security shutter installation take?
A typical security shutter installation on the Garden Route follows a 3–4 week timeline from first contact to completed installation. Week one covers the site visit and measurement — Duncan visits the property, assesses each opening, discusses configuration preferences, and takes precise measurements. Weeks two and three are manufacturing and powder coating at the workshop. Week three or four is installation day, which usually takes 1–2 days depending on the number of openings.
Burglar bar installation is faster for standard products — often within a week if stock sizes fit your windows. Custom steel work takes longer and involves welding on site, which carries its own risks to surrounding finishes.
Custom Blinds project-manages every security shutter installation from measurement through to final handover, including a walk-through demonstration of locking, tilting, and maintenance. Every installation comes with an insurance-ready certificate.
Frequently Asked Questions
Are aluminium security shutters stronger than burglar bars?
Aluminium security shutters with 3-pin locking, reinforced louvre attachments, and 45 mm engagement pins provide comparable forced-entry resistance to quality steel burglar bars. The tamperproof mechanism tightens under force, making prying extremely difficult. Both products are recognised as security barriers by South African insurers.
Do security shutters work in coastal areas like Knysna and Plettenberg Bay?
Aluminium security shutters are built for coastal conditions. Powder-coated architectural-grade aluminium does not rust, corrode, or degrade in salt air. Custom Blinds has installed security shutters across Knysna, George, Plettenberg Bay, and Sedgefield since 2010 with zero corrosion-related warranty claims over 15 years of Garden Route installations.
Can I get insurance recognition for security shutters in South Africa?
Most South African short-term insurers recognise aluminium security shutters as a qualifying security barrier. Custom Blinds provides installation certificates for insurance purposes. Some insurers offer reduced premiums when shutters cover all accessible openings, though discounts vary by policy. Confirm with your specific insurer before installation.
How much do security shutters cost per window on the Garden Route?
Security shutter pricing depends on opening size, configuration (hinged, bi-fold, or bypass), and colour. Every shutter is custom manufactured, so pricing is quoted per project after a free site visit. Custom Blinds provides itemised quotes with no deposit required — you pay on completion. WhatsApp Duncan on 079 523 5407 for a quote.
Can security shutters replace curtains and blinds?
Aluminium security shutters replace burglar bars, curtains, and blinds in a single product. The louvres tilt to control light from full open to near-closed, provide complete privacy when shut, and offer insulation against heat and cold. Many Garden Route homeowners remove curtains entirely after fitting security shutters, creating a cleaner, more architectural look.
Do burglar bars reduce property value?
Estate agents on the Garden Route report that buyers frequently request burglar bar removal before transfer, viewing them as outdated and unattractive. Aluminium security shutters, by contrast, are listed as a premium feature in property descriptions and contribute positively to perceived value, particularly in Knysna, Plettenberg Bay, and lifestyle estates.
Can I install security shutters on stacking doors and wide openings?
Security shutters are available in hinged, bi-fold, and bypass configurations to fit standard windows, wide openings, stacking doors, and commercial shopfronts. Panels can be manufactured up to 900 mm wide. Custom Blinds has fitted shutters on openings from small bathroom windows to 4-metre-wide patio doors across the Garden Route.
Ready to replace burglar bars with something better?
Free site assessment across Knysna, George, Plettenberg Bay, Sedgefield, and Mossel Bay.
Last reviewed: March 2026. All products custom manufactured and quoted individually. Pricing depends on opening size, configuration, and finish. Insurance recognition varies by insurer and policy — confirm with your provider.
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