Window Locks

Window locks are essential for keeping properties safe, compliant, and practical to live or work in. A well-chosen lock prevents forced entry, protects children from falls, and ensures smooth daily use across timber, aluminium, and uPVC frames. From sliding window locks to casement and awning locks, Doric supplies a full range of solutions built for Australian conditions and tested against local standards.

Whether you’re managing a multi-storey apartment, upgrading a heritage sash, or fitting out a new build, the right window lock is a simple investment that delivers long-term safety and reliability.

Types of Window Locks

Not every window needs the same type of lock. Doric’s range covers a full spectrum of designs and applications:

Sliding Window Locks

Designed for horizontal sliders, these locks prevent panels from being lifted or forced open. Available in both keyed and non-keyed options, they’re a must-have for patio sliders and apartments.

Awning Window Locks

Awning locks secure windows that open outward on top hinges. They pair seamlessly with winders and restrictors, making them popular in modern homes and schools.

Casement Window Locks

Casement windows swing open like a door. Keyed handles or fasteners provide strong closure and allow controlled ventilation when partly open.

Double Hung Window Locks

Sash windows require locks that hold upper and lower sashes firmly in place. Options range from keyed sash locks for security to restrictors that prevent over-opening in strata and childcare environments.

Child Safety Window Locks

Restrictors and safety latches limit opening distance while still allowing airflow. These are crucial for upper-storey apartments and multi-unit buildings where fall-prevention rules apply.

Product Spotlight

Doric offers window locks that combine compliance, ease of use, and modern styling. Here are three standout solutions:

SS0006 Cable Window Restrictor

This discreet restrictor uses a strong cable to limit window opening, making it an effective child-safety solution for apartments and multi-storey builds. Explore the SS0006 Cable Window Restrictor to see how it balances ventilation with fall prevention.

Best for: strata managers, apartments, and child-safety compliance.

DS1 Chainwinder

A durable chainwinder designed for awning windows. It provides smooth operation and secure closure, even in high-wind conditions. Learn how the DS1 Chainwinder makes window operation effortless while maintaining a tight seal.

Best for: awning windows in homes, schools, and offices.

DS777 Keyed Awning Handle

Combining modern design with strong locking power, the DS777 offers keyed security for awning windows. Check out the DS777 Keyed Awning Handle for projects that need both function and style.

Best for: residential upgrades and commercial fit-outs needing keyed security.

Key Features & Benefits

Choosing Doric window locks provides more than just peace of mind:

• Compliance – tested to Australian Standards and designed to meet NCC safety codes.
• Security – keyed models resist tampering and forced entry.
• Child safety – restrictors and limiters meet fall-prevention regulations.
• Ease of installation – retrofit-friendly with common cut-out alignment.
• Durability – resistant to corrosion, rust, and heavy use.

Applications

Window locks have different roles depending on the setting:

• Homes – secure front-facing windows, upstairs bedrooms, and sliding doors to reduce break-in risk.
• Strata complexes – child-safety restrictors and keyed systems ensure compliance with building codes.
• Commercial buildings – offices, schools, and healthcare facilities require locks that balance security with accessibility.
• Heritage projects – sash window locks and fasteners allow older timber windows to retain their look while gaining compliance and safety.

Compatibility Across Window Types

The right lock depends on the window material and frame:

• Timber windows – thicker frames require robust fittings like sash locks. See Doric’s timber window locks.
• Aluminium frames – lightweight locks for modern extrusions, including keyed handles. Ideal for sliding window locks.
• uPVC windows – compatible options for insulated frames.
• Awning and casement styles – keyed handles and chainwinders keep outward-opening windows secure. Browse awning and casement window locks.
• Sash/double hung – restrictors and keyed locks to keep sashes tight. Explore double hung window locks.

For full function, pair locks with window stays to control ventilation and secure opening angles.

Maintenance & Replacement Guidance

Even the toughest locks benefit from upkeep. Regular checks improve safety and extend hardware life.

Maintenance tips:

• Clean with a damp cloth to prevent dust build-up.
• Lubricate moving parts with silicone spray twice a year.
• Inspect restrictors for signs of tampering or wear.
• Tighten handles and fasteners that loosen over time.

When to replace:

• Keys stick or won’t turn.
• Restrictors no longer hold at the correct opening gap.
• Visible corrosion on fittings.
• Windows rattle or shift even when locked.

FAQs

What are the best window locks for home security?

Keyed locks are the strongest choice, especially for ground-level and street-facing windows. Pairing keyed locks with restrictors offers double protection.

How do I install sliding window locks?

Most can be fitted using standard tools. Align with the existing cut-outs, fix in place with screws, and test the sliding action. For large or compliance-heavy projects, professional installers may be required.

Are replacement parts available for timber window locks?

Yes. Many models include replacement handles, restrictors, and cylinders designed to fit existing timber profiles.

Can aluminium windows use keyed locks?

Absolutely. Doric supplies keyed window locks for aluminium frames, designed to align with modern extrusions.

Do child safety window locks restrict airflow?

No. Restrictors allow ventilation while keeping openings within safe limits. They’re designed to balance airflow with compliance.

Secure Your Windows with Doric

Protect your property and keep your windows compliant with Doric’s trusted range.

• Shop window locks – tested, compliant, and designed for Australian homes and businesses.
• Get tailored advice – our team can guide you to the right solution.
• Call 1300 132 389 – speak with a Doric hardware specialist.

Every Doric lock is backed by local expertise, compliance with Australian Standards, and engineering built for long-term reliability.