Garage water ingress can be one of the hardest leak problems to understand. Water may appear in a garage, but the source can be several floors away, outside the building, in a shaft, in a drain, or even related to a neighbouring property.
That is why garage leaks need a methodical inspection.
Common garage leak sources
- Misaligned or damaged drain lines.
- Shaft leaks from bathrooms, balconies or AC drains.
- Water travelling from an overlying apartment.
- Rainwater ingress from external walls, ramps or roofs.
- Well or groundwater-related issues.
- Long-running leaks complicated by nearby works or common parts.
What good diagnosis looks like
The inspection should compare the visible water path with likely sources above, beside and outside the garage. Thermal imaging, moisture checks and drainage observations can all help, but access to common areas or neighbouring units may be needed.
What to document
Note when the leak is active, whether it follows rain, shower use or unusual pump/meter behaviour, and who controls access to the affected areas. If the building has an administrator, involve them early so the inspection can be arranged without delay.