Dealing with Balcony Drain Leaks? Here’s What You Need to Know

Generally, a drainage outlet is installed on the balcony, along with a drainage pipe. However, due to material issues, leaks may occur after prolonged use, which can lead to water dripping down to the floor below. In such cases, what should you do if the balcony drainage pipe leaks down to the floor below?

How to Stop Water from Your Balcony Drain Leaking into Lower Apartments

1. First, we need to identify the cause of the leak and the leak point. Different problems require different solutions.

2. A water-tightness test can be conducted on the balcony to see where the leak is occurring. If it’s due to the pipe itself, the pipe should be replaced. Some pipe materials may become brittle and age over time. Replacing them with PPR pipes can effectively prevent future leaks.

3. If the leak is happening at the junction between the drainage pipe and the balcony, all the tiles on the balcony floor will need to be removed for a waterproofing renovation. Additionally, it is advisable to apply a circle of waterproof coating around the perimeter and then reinstall the tiles, which can effectively prevent further leaks in the future.

4. If the leak is minor, adhesive or silicone sealant can be used. After cleaning the leaking area, apply the adhesive and wait for it to dry to effectively repair the leak.

Reasons Why Balconies Are Susceptible to Leaks

1. Some balconies are not fully enclosed, making them vulnerable to rainwater flowing in through gaps in the walls during windy and rainy seasons. This is especially true during heavy rain; any openings can allow water from above to seep onto your balcony. It's important to check for cracks or water dripping issues on both sides of the balcony wall.

2. It's also possible that the leakage is caused by pipes on the upper floors. Some people place washing machines on their balconies, and if the drainage pipes are not properly configured, water can leak onto your balcony from above.

In summary：this article discusses how to address a leaking balcony drainage pipe that affects the floor below. First, locate the cause of the leak and the leak point, then apply the corresponding solution.