Replace a toilet door knob easily in your Singapore home with just a few tools and a bit of time. Whether your knob is rusty, broken, or outdated, swapping it out doesn’t require special skills or expensive services. In Singapore’s humid weather, bathroom fixtures wear out faster, especially in older HDB flats or resale units. By following this guide, you can remove a toilet door knob that is hard to turn, not locking properly, or has fallen off without involving a handyman.
It’s a simple home improvement task that can make your bathroom more secure and functional. Also, if you need professional assistance with services related to folding toilet doors, slide and swing toilet doors, Aluminium toilet doors, etc., LS Toilet Door Singapore is your best choice.
Common Reasons for Toilet Door Knob Problems in Singapore
In Singapore, many toilet doors are exposed to moisture because of the high humidity. Over time, this can cause the door knob to rust or become loose. In older flats, especially those with PVC or wooden doors, the knobs tend to wear out faster.
You may need to replace a toilet door knob if:
- The knob spins freely and doesn’t open the door
- The lock doesn’t work or is stuck
- The knob has fallen off or is wobbly
- It’s rusty or hard to turn
In my case, the toilet door knob in our flat had rusted from inside. The screws were jammed, and the latch didn’t move properly. I decided to change it before it got worse.

What You’ll Need to Change a Toilet Door Knob
Here are the exact tools I used:
- A new toilet door knob set (I got mine from Selffix at Northpoint City for $18. It was a stainless steel privacy knob.)
- A Phillips-head screwdriver
- A flathead screwdriver (to pry the latch plate)
- A small Allen key (only if your knob has a hidden screw)
- WD-40 spray (for old or rusty screws)
- A cloth to clean up the area
Tip: Check the packaging of the new knob. Make sure it fits the thickness of your toilet door. Most toilet doors in Singapore are about 35 to 40 mm thick.
Step-by-Step: How to Replace a Toilet Door Knob
Step 1: Remove the Old Knob
Start from the inside of the toilet. Most knobs have visible screws on the round base plate. Use the Phillips screwdriver to remove them.
If you don’t see any screws, look for a small hole near the neck of the knob. Insert an Allen key or thin tool into it and press until the knob pops out.
Once one side is off, remove the other side by pulling it gently. Then, unscrew the latch plate on the side of the door.
Step 2: Clean the Opening
After removing the knob, wipe down the hole and the surrounding area with a cloth. In my case, there was a bit of black gunk and some rust flakes. You want the new knob to sit flush against the door.
If the old latch is rusty, spray a bit of WD-40 to loosen it and wipe it clean.
Step 3: Insert the New Latch
Remove the new latch from the knob set. Fit it into the same side of the door where the previous latch used to be. Place the latch so that the curved side is towards the door frame. It helps the door close in a smooth way. Secure it with the screws provided.

Step 4: Fit the New Knob
Slide the exterior knob through the hole. Line it up with the latch inside the door. Then, attach the interior knob by aligning it with the shaft and pushing it in.
Screw the two sides together using the screws provided. Tighten them evenly so the knob stays firm but not too tight.
Check that the knob turns and that the latch moves in and out properly.
Step 5: Test the Lock
If your new knob has a lock, turn it and see if the latch holds. Try locking and unlocking from inside. Make sure the door closes and opens smoothly.
That’s it. You’ve now completed your toilet door knob replacement.
Conclusion
Now you know exactly how to replace a toilet door knob in Singapore. It’s not difficult, and you don’t need to be a handyman to do it. With a few simple tools and a little care, you can replace a toilet door knob in your HDB or condo flat and get your bathroom functioning like new. Whether your goal is to fix a broken lock or upgrade the look of your door, this guide will help you do it right. Don’t wait until the knob completely fails. Take the first step and change it today.
If you’re still unsure or need help, consider contacting a local handyman. But once you try replacing a toilet door knob in Singapore, you’ll realize it’s one of the easiest home repairs you can do on your own.

