Project Overview

Awning windows are generally hard for intruders to open but for some added security, install a window lock. It’s easy to do yourself and will give you extra peace of mind. In just a few simple steps, we’ll show you how to measure up and install the lock so that it fits and works properly every time.
Continue to Step-by-step instructions.
This D.I.Y. Advice is part of a series How To Install an Awning Window
Time Required

Quick Fix

Quick Fix

A quick fix project usually takes around 1-2 hours

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Quick Tip

Here’s a simple way to keep your drill bit from drilling too far into any material. When you need to control your hole depth precisely, there are a number of different depth stoppers you can buy. But if you only need a rough guide, wrap a piece of electrical tape around the drill bit at the depth you want to drill to.

Step by Step Instructions

1 Position the lock
2 Mark the screw holes
3 Attach the lock to the sash
4 Insert the bolt
5 Attach the striker plate to the sill
  • Step 1. Position the lock

    Before you start, make sure the window is fully closed. Take your ruler and measure between the edge of the jamb and the window winder. Then mark the centre with your pencil.  First, position a spacer over the mark and place the lock on top. The spacer helps create enough space so that the lock doesn’t catch on the windowsill.

  • Step 2. Mark the screw holes

    To mark out where the screws need to go, use a nail because a pencil won’t fit. Push it through each of the lock’s screw holes and make some small dents in the sash. Do the same with the spacer. Put the lock and spacer aside and mark those dents with your pencil so that you can see them better.

  • Step 3. Attach the lock to the sash

    Wind the window open. Choose a drill bit that matches the size of your screws and drill pilot holes into the marks. Close the window again and place the lock over the holes. Screw the lock onto the sash with your screwdriver, but you can also use a battery drill.

  • Step 4. Insert the bolt

    Make sure the window is tightly closed. Insert the bolt into its hole and push it down to make a mark on the windowsill. Pull the bolt out and wind the window open. Now drill a hole into that mark but use a drill bit that’s slightly larger. Close the window and check that the bolt fits into the hole.

  • Step 5. Attach the striker plate to the sill

    Open the window and position the striker plate on the sill. Mark the holes with a pencil and drill in some pilot holes. Then screw the plate to the sill with your screwdriver. Finally, close the window and check that the lock is fitting correctly and working properly.

Please make sure you use all equipment appropriately and safely when following the advice in these D.I.Y. videos. You need to be familiar with how to use equipment safely and follow the instructions which came with the equipment. If you are unsure, you may feel it is safest to consult an expert, such as the manufacturer or an expert Bunnings team member.

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