How to clean gutters safely

Gutters are easy to forget until one overflows in a downpour and sends water down the front of the house. In Kerry, with frequent heavy rain and plenty of trees, hedges and seabirds, gutters fill with leaves, moss washed off the roof, and silt surprisingly fast. Blocked gutters cause damp walls, stained render, rotting fascias and, in the worst cases, water getting into the house.

Cleaning them is a straightforward job, but it involves working at height. This guide covers when and how often to do it, how to stay safe, and what to look for while you are up there.

How often should gutters be cleaned?

Most houses need their gutters cleared at least once a year, ideally in late autumn once the leaves have fallen and before the worst of the winter weather. Homes near trees, with moss on the roof, or in exposed coastal spots often need a second clean in spring. Signs that your gutters need attention sooner include:

• water spilling over the edge of the gutter during rain;
• plants or grass growing in the gutter;
• gutters sagging or pulling away from the fascia;
• damp patches, green streaks or staining on the wall below;
• a downpipe that stays dry in heavy rain, or gurgles and overflows at the bottom.

Safety first

Falls from ladders cause serious injuries every year, and gutter cleaning is a common culprit. The Health and Safety Authority has guidance on using ladders safely. The key points for a homeowner are:

• Use the right ladder, in good condition, tall enough that you do not need to stand on the top rungs.
• Set it up properly: on firm, level ground at the correct angle, commonly described as one unit out from the wall for every four units up. Use a ladder stand-off (stay) so the ladder rests on the wall, not on the gutter, which can crack or give way.
• Secure the ladder or have someone foot it.
• Keep three points of contact and do not overreach. Climb down and move the ladder instead.
• Do not work in wind, rain or poor light, and never on a wet or icy surface.
• Look up first for overhead electricity lines and keep well clear of them.
• Wear gloves, as gutters can contain sharp debris and bird droppings, and eye protection when flushing.

Cleaning from the ground

For many bungalows and some two-storey houses, the safest option is not to climb at all. Telescopic gutter-cleaning poles with a scoop or claw on the end, and wet-and-dry vacuum kits with extension poles, let you clear gutters from ground level. Some have a camera so you can see inside the gutter. They work best for regular maintenance of lightly blocked gutters rather than heavily compacted silt.

Step-by-step: cleaning gutters by hand

1. Prepare. Lay a tarpaulin or old sheet on the ground to catch debris and protect plants. Have a bucket with a hook to hang on the ladder.
2. Start at the downpipe and work away from it, so you do not push debris into the outlet.
3. Scoop out debris by hand or with a plastic gutter scoop. Avoid metal tools that can scratch or crack uPVC gutters.
4. Flush with water. Run a hose along the gutter from the far end towards the outlet. Water should flow freely to the downpipe without pooling, which shows the gutter has the right fall.
5. Clear the downpipe. If water backs up, the downpipe is blocked. Try flushing from the top with a hose. A plumber's drain rod or a gutter auger can clear stubborn blockages. Many downpipes have an access point or a removable shoe at the bottom that makes this easier.
6. Check the gully at the base of the downpipe and clear any leaves or silt so water can drain away.

What to check while you are up there

• Joints: drips from the joints between sections often mean a worn rubber seal. Replacement seals or a gutter sealant can fix minor leaks.
• Brackets: loose or missing brackets let the gutter sag, so water pools rather than flowing to the outlet.
• Fall: water standing in the gutter after flushing suggests the fall needs adjusting.
• Fascias and soffits: soft, rotten timber or loose boards behind the gutter.
• The roof edge: look for slipped or broken slates or tiles near the eaves and clumps of moss that will wash into the gutter. Do not walk on the roof.

Water marks on a wall below a leaking gutter can leave stubborn green staining. Once the gutter is fixed, see our guide on painting the outside of a house for how to treat and repaint the render.

Are gutter guards worth it?

Mesh, brush and foam gutter guards stop leaves entering the gutter, which can reduce how often you need to clean. They are not maintenance-free: fine debris and moss can still build up on or in them, and they need clearing and checking. They tend to work best on houses close to large deciduous trees. Make sure any guard you fit suits your gutter profile and does not stop water getting in during heavy rain.

When to get help

Call in someone with proper equipment if your gutters are above single-storey height and you are not confident on a ladder, if the ground below is uneven or sloping, if the gutters are over a conservatory or flat roof, or if you find damage such as cracked sections, sagging runs or rotten fascias. Gutter cleaning and roof maintenance are listed among the handyman services in County Kerry provided by Alpine Home Improvements.

Gutter cleaning fits naturally into a wider seasonal check; our winter home maintenance checklist covers the other jobs worth doing before the stormy months.