{"id":3546,"date":"2025-12-19T13:59:35","date_gmt":"2025-12-19T13:59:35","guid":{"rendered":"https:\/\/canalizadordelisboa.pt\/?page_id=3546"},"modified":"2025-12-19T13:59:35","modified_gmt":"2025-12-19T13:59:35","slug":"how-to-identify-a-cracked-pipe-inside-the-wall","status":"publish","type":"page","link":"https:\/\/canalizadordelisboa.pt\/en\/como-identificar-um-cano-rachado-dentro-da-parede\/","title":{"rendered":"How to identify a cracked pipe inside the wall"},"content":{"rendered":"

A cracked pipe inside a wall is one of the most difficult problems to detect in time. Often, the damage starts slowly, without any obvious signs, and only becomes visible when there is water infiltration, mold, or even structural damage. The sooner you identify the problem, the lower the repair cost and the lower the risk of destroying walls, floors, or furniture.<\/p>\n

This guide explains all the signs you should look out for, the most common causes, diagnostic methods, and how to confirm whether there really is an internal leak in your home. Finally, we explain when you should call a professional and why specialized service from Canalizador de Lisboa<\/a> is the safest and most effective solution.<\/p>\n

Signs that there is a cracked pipe inside the wall<\/h2>\n

Although the pipe is hidden, water almost always leaves clues. Here are the most common signs:<\/p>\n

1. Moisture stains on the wall<\/h3>\n

This is the most common symptom. The spots may start small and grow over several weeks. They usually appear as dark, brownish areas or areas with a different texture.<\/p>\n

2. Peeling paint or blisters on the wall<\/h3>\n

When water seeps behind the paint, it forms bubbles and causes the paint to peel off easily by hand.<\/p>\n

3. Smell of mold or mildew<\/h3>\n

Moisture trapped in the wall creates an ideal environment for mold. Even if you don't see any stains, a persistent smell may indicate a hidden leak.<\/p>\n

4. Sudden increase in water bill<\/h3>\n

If you haven't changed your consumption habits but your bill has increased, there may be a continuous leak inside the wall. Checking the meter when all the taps are closed is a great test.<\/p>\n

5. Sounds of running water<\/h3>\n

If you hear a constant dripping or running sound behind the wall without any faucets open, it is a clear sign of a leak.<\/p>\n

6. Unexplained warm floors (in houses with hot water pipes)<\/h3>\n

A cracked hot water pipe can heat up areas of the floor, especially in homes with built-in installations.<\/p>\n

Common causes of cracks in pipes<\/h2>\n

A pipe does not crack by chance. Here are the most common reasons:<\/p>\n