How to Drill a Secondary Hole for Night Locks on Sliding Windows

Night locks are a popular feature on sliding windows for added security, but sometimes they can limit the window’s range of motion, restricting airflow – but don’t worry!  If you'd like a wider window opening while still maintaining the benefits of a night lock, you can drill a secondary hole into your sliding window frame. In this step-by-step guide, Centra Install Pros will walk you through the process of drilling the hole safely and effectively, giving your sliding windows more flexibility without sacrificing home security.

Step-by-Step Instructions: How to Drill a Secondary Hole for Night Locks on Sliding Windows

Check the Night Lock’s Functionality

Before proceeding, ensure that the night lock is working properly in the closed position.

• Test the night lock: Close your window and engage the night lock. This ensures that the lock is functioning as intended and that you can safely proceed with drilling.
• Measure the opening: Open the window slightly to create a 3” gap for airflow. Use a tape measure to confirm this measurement.
• Mark the drilling spot: Using a pencil, mark where you want to drill the secondary hole on the window track.

Pro Tip: Avoid drilling while the window track is still in place. Drilling through the full frame could lead to water or insect damage. You only need to drill through the first layer of the frame.

Remove the Sliding Window

Now that you’ve prepared the window, the next step is to remove it.

• Open the window: Slide the window fully to one side of the track to create space for removal.
• Lift the window: With one hand on each side of the window, carefully lift it upwards into the upper track.
• Remove the window: Gently tilt the window towards you and pull the bottom of the window out of the frame. Then, remove the top portion from the track and set it aside in a safe location.

Remove the Window Track

With the window out of the way, it's time to remove the track.

• Insert a pry bar: At one end of the window track, gently insert a flat pry bar between the window frame and the track.
• Remove the track: Twist the pry bar carefully to loosen the track. Once the track is detached, pull it out completely.

Drill the Secondary Hole

Now that the track is removed, you can proceed with drilling the secondary hole for the night lock.

• Use the pencil mark as a guide: Take your power drill and a 5/16” drill bit. Position the drill at a 90-degree angle to the track, using your pencil mark as a reference.
• Drill the hole: Drill carefully to avoid damaging the frame. The hole should be neat and aligned with your marked spot.

Reinstall the Window Track

Once the hole is drilled, it’s time to reinstall the window track.

• Align the track: Position the track back into place, ensuring it lines up with the window frame.
• Secure the track: Gently press down on the track, making sure it snaps into position without leaving any gaps.
• Check for alignment: Double-check the track to ensure it is properly seated and aligned before proceeding.

Reinstall the Window

Now that the track is securely back in place, reinstall the window.

• Insert the window: With one hand on each side, lift the top of the window into the track.
• Position the window: Carefully guide the bottom of the window into the track and gently lower it into place.
• Test the window's functionality: Open and close the window to ensure it slides smoothly. Also, check the lock’s functionality in both positions to confirm that everything works as expected.

Why Drilling a Secondary Hole for Night Locks is Beneficial

Adding a secondary hole for the night lock allows you to enjoy greater flexibility with your sliding window without compromising on security. Here are some benefits of this upgrade:

• Increased airflow: A wider opening enables better ventilation and airflow in your home.
• Enhanced security: The night lock still provides an additional layer of security when your window is partially open.
• Improved functionality: This modification gives you more control over the window’s operation, allowing for both security and comfort.

Common Issues with Night Lock Holes

While drilling a secondary hole can enhance your window's functionality, there are some common issues you should be aware of:

• Hole misalignment: If the secondary hole is not drilled in the correct position, the lock may not function as intended. Always double-check your measurements before drilling.
• Damaging the frame: Drilling too deeply or at an incorrect angle can damage the frame and compromise the integrity and overall performance of the window.
• Inconsistent sliding: If the track isn't securely installed after modification, the window might not slide properly. Ensure the track is properly aligned.

Pro Tips for Maintaining Your Sliding Windows

• Regular cleaning: Clean your window tracks every 6 months to prevent buildup of dust, dirt, and debris.
• Use the right tools: Ensure that you’re using the correct drill bit size and a steady hand to avoid damaging the frame during installation.
• Check window locks: Regularly inspect your night lock for any signs of wear. Replace it if needed to maintain safety.
• Choose quality windows: Centra manufactures energy-efficient vinyl and hybrid windows crafted to the highest standards. Our custom-made products are tailored for your specific project and come with an unrivalled 30-year warranty. Designed with the end-user in mind, they are built to minimize maintenance needs.

FAQ: Drilling a Secondary Hole for Sliding Window Night Locks

What size drill bit is needed for a night lock hole?

A 5/16” drill bit is recommended for drilling a secondary hole for a night lock.

How do I drill a secondary hole for night locks on sliding windows?

Drill the hole at a 90-degree angle through the window track using a 5/16” drill bit, following your pencil mark as a guide.

Will drilling a hole damage my window?

As long as you follow the correct procedure and drill at a 90-degree angle, it shouldn’t damage your window. Ensure you don’t drill through the full frame.

Centra: Western Canada’s Top Choice for Windows & Doors

Have an upcoming window and door project? Reach out to the experts for a free consultation! If you have any questions regarding this topic or anything else to do with windows, contact a local Centra Employee Owner at 1-888-534-3333 or drop us an email at info@centra.ca. Follow us on Facebook and Instagram to stay up to date, and test your window knowledge on LinkedIn.