Many new homeowners in Singapore eagerly await the day they collect the keys to their BTO or HDB flat. But after moving in, some start to notice small issues — one common problem is a gap around the bathroom door. You may see light coming through the sides, feel air leaking in, or even notice water splashing outside after a shower.
So, is this a serious problem? And is it caused by poor installation? Let’s break it down in simple terms.
Why Is There a Gap Around Your Bathroom Door?
A small gap under the bathroom door is actually normal in many flats. A small gap at the bottom actually helps improve airflow and keeps the room well ventilated. This is important in humid places like Singapore.
However, if the gap is too big, uneven, or visible from the sides, then it could be a problem.
1. Installation Alignment Issue
The door frame was not installed at a perfect 90-degree angle, causing the door to sit unevenly.
2. Floor Level Difference
Sometimes the bathroom floor is slightly lower than the rest of the house to prevent water from flowing out. If the door height was not measured correctly, a large bottom gap may appear.
3. Door Warping
In Singapore’s humid weather, wooden bathroom doors can expand or bend over time. This may cause gaps or uneven closing.
4. Loose Hinges
Screws on the hinges might be loose, causing the door to sag, which creates a gap at the top and a jam at the bottom.
5. Wrong Door Size
In some cases, the door installed may not be the perfect size for the frame. Even a small measurement mistake can create visible gaps.
Is It Really an Installation Problem?
Not always.
A slight bottom gap is normal for ventilation. But if you notice:
- The gap is bigger on one side
- The door cannot close properly
- Water leaks out after shower
- Privacy is affected
Then yes, it may be due to installation or measurement issues.
If the problem appears shortly after key collection, you can report it during the defect liability period.
Why You Should Not Ignore a Big Door Gap
Some homeowners ignore the issue at first. But over time, it can lead to:
- Water damage outside the bathroom
- Mould growth around the frame
- Rust on hinges
- Privacy concerns
Fixing the problem early can save you more cost later.
How to Fix or Minimize the Gap
- Install a Door Sweep: A simple, waterproof brush or rubber seal (specifically for bathrooms) can be attached to the bottom of the door to block light and sound while still allowing some air to pass through.
- Adjust the Hinges: If the door is sagging or misaligned, tightening or re-positioning the hinges might fix the gap.
- Add a Threshold: A small, raised threshold can be installed at the door entrance, which bridges the gap, though this must be done carefully to avoid hindering the door’s operation.
- Install Louvered Doors: Replace the bottom panel of the door with a louvre design to maintain airflow while reducing the visible gap.
Facing a toilet door issue? Click the related link for the full solution guide.
When Should You Replace the Door?
You may consider replacing your bathroom door if:
- The door is swollen or warped
- Rust keeps appearing
- The gap problem keeps returning
- The door does not close securely
Modern toilet doors designed for HDB and BTO flats are made to handle Singapore’s humidity better and reduce common issues like swelling and misalignment.
A small bathroom door gap in your BTO flat is not always a serious issue. Some spacing is needed for air flow. But if the gap is uneven, too large, or causing water leakage, it could be an installation or measurement problem.