Security doors in Australia typically require a specific triple-lock or multi-point locking system designed for the door's construction — steel mesh, aluminium frame, or stainless steel mesh. The most common are three-point locking systems that secure the door at the top, middle, and bottom simultaneously. A locksmith can match the correct lock to your security door brand and type.
Overview
Security screen doors are a staple of Australian homes, providing ventilation, insect protection, and an additional barrier against intruders. However, a security door is only as strong as its lock. Many homes have outdated or worn security door locks that can be easily bypassed. Modern security door locks feature multi-point locking mechanisms that engage at three or more points along the door frame, making forced entry extremely difficult. Australian locksmiths are experienced with all major security door brands including Amplimesh, Crimsafe, Invisi-Gard, SecureView, and Prowler Proof, and can supply and fit the correct lock for each type. Proper installation is essential — a misaligned security door lock wears quickly and provides reduced protection.
When you need this service
- ✓Security screen door lock is stiff, jammed, or no longer latches properly
- ✓Upgrading from a basic single-point lock to a triple-lock or multi-point system
- ✓Lock on your security door has been damaged in a break-in attempt
- ✓Installing a new security screen door and need a high-quality lock fitted
- ✓Keys to your security door have been lost and the lock needs replacing
- ✓Lock cylinder needs rekeying to match your front door key
How it works
- 1
Door & Lock Assessment
The locksmith identifies your security door brand, model, and construction type (steel mesh, aluminium, or stainless steel). They assess the existing lock condition and determine the compatible replacement or upgrade options.
- 2
Lock Selection
You choose from compatible lock options — typically a three-point or five-point locking system. The locksmith advises on brands such as Whitco, Lockwood, Doric, and Yale that are designed specifically for Australian security doors.
- 3
Installation & Alignment
The locksmith installs the new lock, ensuring all locking points engage correctly with their corresponding strike plates. Proper alignment is critical for smooth operation and maximum security.
- 4
Testing & Adjustment
The lock is tested multiple times. The locksmith adjusts hinge tension, closing speed, and lock alignment as needed to ensure the door latches securely every time it closes.
How much does it cost?
Security door lock installation in Australia typically costs between $150 and $400 per lock, including labour and hardware. A basic single-point security door lock replacement costs $100 to $180. A three-point locking system (the standard for modern security doors) runs $200 to $350 installed. Premium five-point locking systems cost $300 to $400 or more. Lock cylinder replacement only (keeping the existing lock body) costs $80 to $150. Prices vary by security door brand — Crimsafe and similar premium doors may require proprietary lock components that cost more. Labour typically takes 30 to 60 minutes for a standard replacement. Locksmiths in major cities charge at the higher end of these ranges.
Australian regulations
Security door lock installation in Australia requires a licensed locksmith — Class 2F in NSW (Security Industry Act 1997), Private Security Licence in VIC (Private Security Act 2004), or equivalent in other states. Security doors and their locks should comply with AS 5039 (Security Screen Doors and Security Window Grilles) which sets standards for the structural integrity and lock strength of security screen doors. The Master Locksmiths Association of Australasia (MLAA) recommends using locks that are tested and approved for use with the specific security door brand to maintain the door's overall security rating.