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New homeowner in Australia spots a kitchen-window 'waterfall,' and commenters blame the gutters

A single storm can expose weak points that never show up during inspections.

Water is cascading down a window, creating a misted effect on the glass near a brick wall.

Photo Credit: Reddit

A new home is supposed to come with at least a brief honeymoon period. For one homeowner near Melbourne, that ended in just three days, when a pergola leak turned the kitchen window into a "waterfall."

Here's what to know

After finding the pergola leaking badly, noticing several smaller leaks elsewhere, and seeing water come into one side of a detached garage, the homeowner asked on a Reddit post in r/AusRenovation whether they should call a roof plumber. "The pergola is leaking quite badly, especially around the kitchen window — I'm not really enjoying the free waterfall," they wrote.

Water is cascading down a window, creating a misted effect on the glass near a brick wall.
Photo Credit: Reddit
Photo Credit: Reddit

One wave of advice focused on ruling out blockages before bringing in a specialist. Commenters mentioned gutters and downpipes, with one saying, "Check that the gutters aren't full of debris first step," and another added that a roof plumber would be the "best bet" only if the homeowner was not confident in getting up there safely.

Several people pointed out that the weather itself may have made the leak look worse than it was. One commenter wrote that "about half of Melbourne's gutters were overflowing" and explained, "We got 25 millimeters [1 inch] in the space of about 30 minutes, which is serious water volume and one that you would only see once or twice per year."

More background

Overflowing gutters during an intense downpour do not always point to a failed roof. Several commenters said leaves, blocked downpipes, or debris caught where the pergola meets the house could have forced water backward and created dramatic spillover.

Cleaning gutters or clearing a blockage is usually far cheaper than paying a roof plumber to diagnose what turns out to be a simple obstruction, and it's much cheaper than ignoring the problem until repeated leaks lead to mold, staining, or damage.

Users also suggested the garage leak may need to be considered on its own. If water entered from the side, one commenter said, the cause could be earth against the wall, poor sloping, missing waterproofing, or some combination of those factors.

A single storm can expose weak points that never show up during inspections or in dry weather.

What can be done?

If it can be done safely, homeowners can inspect the gutters first, look for leaf buildup, confirm that the downpipes are draining properly, and see how the system behaves in typical rain before paying for professional work.

"Before spending $$ on a roof plumber, check it out yourself. More than likely it's at least partly blocked, causing slightly worse performance," one user said. "Then, wait for the next reasonable rainfall and see how it performs. If still terrible at moderate rainfall, then it's roof plumber."

Where can I learn more?

Similar stories show how heavy rain, drainage flaws, and runoff can cause expensive headaches. 

• Heavy rain left floating garden beds waterlogged, with the homeowner feeling powerless to stop it.

• A poorly planned concrete patio sent runoff into a lawn and sparked homeowner frustration.

• One homeowner said a unique rain garden feature saved their property during torrential storms.

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