Where’s the job?

Overview

Fit window locks to improve security by preventing unauthorised entry and reinforcing your home’s defences. The project typically requires basic DIY skills and takes about 1–2 hours, depending on the number of windows.

Safety First

• Ensure the window and frame are undamaged before fitting the lock.

• Use protective gloves and safety glasses, especially when handling tools and drilling.

• Double-check measurements to avoid misalignment or damage to the window.

• Follow the manufacturer’s guidelines precisely for installation.

Tools & Materials

Step-by-Step

1. Select the appropriate window lock type based on your window design (casement, sash, etc.).

2. Measure the window frame accurately and mark the lock’s fitting position.

3. Drill pilot holes at the marked positions to ensure correct alignment with minimal damage.

4. Secure the lock using the provided screws and tools, ensuring it sits flush with the frame.

5. Test the lock several times to confirm it engages properly and the window stays firmly shut.

6. Make any necessary adjustments to ensure smooth operation without compromising security.

7. Clean the work area and remove any debris or dust from drilling.

Completion Checks

• The lock engages smoothly and holds the window securely.

• No gaps exist between the lock and the frame that might compromise security.

• All screws and fittings are tight without over-stressing the window structure.

• The window opens and closes with ease while remaining securely locked when closed.

When to Call a Pro Instead

If your windows form part of a heritage property or feature specialised glazing that might be compromised by incorrect installation, or if you are unsure about the lock compatibility and security standards, it is advisable to consult a professional locksmith.