Drainage, surfaces and lawn
Gutter cleaning: why it matters and how to do it safely
Gutters clog with leaves, moss and silt, causing overflow that runs down walls and can lead to damp inside. Cleaning them once or twice a year, typically in autumn, prevents most problems. Ground-level tools make it a DIY job on a bungalow, but two-storey work at height is often safer left to a professional.
- Also known as
- guttering maintenance, clearing gutters
- Easily confused with
- a leaking joint (a repair, not a blockage), overflow from a downpipe blockage
- How serious
- Low for the blockage, but working at height is the real hazard
- Typical cost
- Usually no cost for DIY control
How to identify gutter cleaning
Tell-tale signs are water spilling over the front edge of the gutter in rain, plants or moss growing in the channel, staining or green algae streaks running down the wall below, and water pooling near the base of the house.
Inside, overflowing gutters can show as damp patches on upper walls or ceilings near the eaves, because water that should drain away soaks the wall instead.
How serious is it?
Low for the blockage, but working at height is the real hazard
Blocked gutters are low risk in themselves but a common hidden cause of penetrating damp, because overflowing water saturates the wall. Left for years they can also damage fascias and rot timber behind them.
The real hazard is the work itself. Falls from ladders are a leading cause of serious home maintenance injury, so the danger lies in how you clean gutters rather than the blockage.
How to fix it yourself
- On a single-storey roof, use a gutter-cleaning attachment on a telescopic pole or wet-and-dry vacuum from the ground where possible, avoiding ladders.
- If you must use a ladder, use a stable, level base and a ladder stand-off, keep three points of contact, and never overreach or work in wet or windy conditions.
- Scoop out leaves and silt, then flush the gutter and downpipe with a hose to confirm it runs freely.
- Fit gutter guards or brushes to slow future build-up, especially under trees.
- Clean in late autumn once leaves have fallen, and again in spring if needed.
When to call a professional
- The gutters are on a two-storey or higher roof, on a steep or awkward access point, or you are not confident working at height.
- You find leaking joints, sagging gutter, or rotten fascia that needs repair rather than cleaning.
Who to call
- A professional gutter-cleaning or window-cleaning firm with the right access equipment for higher roofs.
- A roofer or builder for fascia repair, gutter replacement or persistent leaks.
Frequently asked questions
How often should gutters be cleaned?
Once or twice a year is typical for most UK homes, usually in late autumn after leaves fall, with a spring check if you have nearby trees. Homes under heavy tree cover or with moss-prone roofs may need more frequent clearing to prevent overflow and damp.
Can I clean my gutters myself?
On a single-storey roof, yes, ideally with a telescopic pole tool or vacuum from the ground to avoid ladders. Two-storey work at height carries a real fall risk and is often safer left to a professional with proper access equipment. Never overreach from a ladder.
Do blocked gutters really cause damp?
Yes. When a gutter overflows, water runs down the wall instead of draining away, saturating the masonry and causing penetrating damp inside, often as patches on upper walls near the eaves. Clearing the gutter is frequently the cheap fix for what looks like a mysterious damp problem.
Sources
Editor, HomesAndHedge
Oliver leads HomesAndHedge's editorial coverage of home and garden problems. He researches and writes the plain-English explainers on pests, invasive plants, damp and mould, drainage and wildlife, drawing on guidance from bodies such as the Property Care Association, the RHS and the NHS, and is clear about when a job needs a qualified professional.
Last reviewed: 8 June 2026