Why it happens
Debris settles at the outlet first, so the run holds water permanently. That standing water finds the weakest joint, then tracks down the fascia and into the wall behind it.
What to do about it
Check for these from the ground, ideally during heavy rain when a blockage shows itself.
- Water spilling over the back or side of the gutter during rain
- Vertical staining or green algae streaks down the wall below a joint
- Plants, grass or moss growing out of the gutter run
- Sagging sections, or brackets pulling away from the fascia
- Peeling paint and soft timber on fascia or soffit boards
- Damp patches on upstairs internal walls, or a musty smell in a bedroom
- Birds nesting in the run, which blocks it completely
- A downpipe that stays silent in heavy rain when it should be running
- Pooling or splashback along the ground line by the wall
The mistake to avoid
Do not just clear the visible gutter and stop. If the downpipe is blocked the run fills again on the next shower, so the pipe has to be tested as well.
How we handle it
Blocked gutters cause damp, damaged fascias and expensive repairs. We clear, flush and inspect gutters using safe, ground-based vacuum systems — no ladders leaning on your property.
- Ground-based vacuum with carbon poles
- Pole-mounted inspection camera
- Biocide flush on moss build-up
The service behind this guide
Safe, thorough gutter clearing, jet-flush and inspection.
See Gutter Cleaning