Clean gutters before the rains

Coastal British Columbia drops leaves, needles, and moss fragments into gutters from late summer through the first long rains. Once those channels fill, water has nowhere to go except over the edge — onto siding, into window wells, and against the footing.

You do not need a perfect system. You need clear troughs and working outlets before the weather turns continuous.

When to do it

• Late August through October is the practical window in most of the Lower Mainland and on the Island.
• After a dry stretch is safer on the ladder than during a storm.
• If big leaf-drop trees sit over the roof, plan a second pass after the main fall is over.

Waiting until November is common. It is also when every ladder is booked and every overflow stain is already on the fascia.

What “clean enough” looks like

1. Scoop debris so water can run the full length of each run.
2. Flush downspouts with a hose from the top. If water backs up, the outlet or the buried line is blocked.
3. Confirm the drop from the gutter into the downspout is open — that elbow collects the worst of the sludge.
4. Look at the ground: water should leave the foundation, not pool at the wall.

Moss dams in valleys and behind chimneys matter as much as the gutters themselves. A clean trough still overflows if the roof cannot shed into it.

Ladder and safety

Wet cedar and algae on roof edges are slick. If the pitch is steep, the run is high, or you are alone, this is a hire job. A single fall costs more than a season of professional cleaning.

When gutters are not the real problem

If troughs are clear and water still sits against the house, look at:

• Downspouts that end at the footing
• Soil that slopes toward the foundation
• Window wells full of debris
• A buried drain that no longer takes flow

Clear gutters are step one. They are not the whole drainage story.