
Fitting a door lock is an essential skill for homeowners, enhancing both security and privacy. Whether you’re replacing an old lock or installing a new one, this guide will walk you through the process and discuss various lock options available. In fact, let’s get started!
STEP-BY-STEP GUIDE:
1. Gather Your Tools and Materials
Before you begin, make sure you have the following tools and materials:
- New door lock (choose from options below)
- Screwdriver (flat and Phillips)
- Drill (if needed for new holes)
- Measuring tape
- Chisel (for mortise locks)
- Wood filler (if necessary)
- Safety glasses
2. Choose the Right Lock
In fact, there are several types of locks to consider:
- Deadbolts: These provide additional security and require a key to open. They are ideal for exterior doors.
- Knob Locks: Commonly used for interior doors, these locks combine a knob and locking mechanism.
- Lever Handle Locks: These are easy to operate and often used in commercial settings but can also be stylish for residential doors.
- Smart Locks: These modern options allow for keyless entry via smartphone or code, offering convenience and advanced security features.
- Mortise Locks: These locks fit into a pocket cut into the door and provide robust security. They are typically used in commercial applications but can be stylish for residential use.
3. Remove the Old Lock
If you’re replacing an existing lock:
- To start, unscrew the lock: Use the screwdriver to remove screws from both the interior and exterior sides of the door.
- Then take out the old lock: Carefully pull the lock mechanism out of the door. If it’s stuck, gently wiggle it free.
4. Prepare the Door
If you’re installing a new lock:
- Firstly, measure for placement: Use a measuring tape to determine where the lock will go, typically about 900mm from the ground.
- Next, mark the drilling points: Use a pencil to mark where the lock and latch will be placed.
- then, drill holes: If your door doesn’t already have holes for the lock, drill holes according to the manufacturer’s instructions. Ensure they are straight and at the correct depth.
5. Install the New Lock
- To begin with, insert the latch: Start by installing the latch or bolt mechanism into the edge of the door. Secure it with screws.
- Afterward, attach the exterior lock: Position the exterior part of the lock against the door and align it with the latch. Secure it in place with screws.
- Then, install the interior lock: Place the interior side of the lock over the latch mechanism, ensuring everything aligns properly. Secure it with screws.
6. Test the Lock
- First, test the locking mechanism: Turn the key or lever to ensure it operates smoothly. Make any necessary adjustments if it feels stiff or doesn’t engage properly.
- Subsequently, check the alignment: Ensure the latch aligns with the strike plate on the door frame. Adjust if needed for proper engagement.
7. Finish Up
- Finally, install the strike plate: If you haven’t already, secure the strike plate to the door frame with screws.
- And lastly, clean the area: Remove any debris and ensure the door opens and closes smoothly without obstruction.
CONCLUSION
Fitting a door lock is a straightforward DIY task that can significantly enhance your home’s security. By choosing the right lock type and following these steps, you can successfully install or replace a door lock with confidence. If you’re unsure about any part of the process, don’t hesitate to consult a professional. Happy securing!

See our blog post from 2023 – explaining in further detail all the different types of locks available – https://pressupindustries.com/basic-locks-latches-explained/?v=68caa8201064