7 Signs Your Gutters Need Cleaning (Don't Ignore #4)
By R.R.M External Cleaning Specialist · 20 September 2026 · 5 min read
Gutters fail quietly, then suddenly. Learn the seven warning signs and you'll catch blockages while they're a £100 clean, not a £2,000 damp repair.
1. Water pouring over the edge in rain
The classic sign. If water cascades over the gutter like a waterfall while it's raining, an outlet or downpipe below that point is blocked. This is urgent — every storm is soaking your brickwork.
2. Plants growing in the gutter
Grass, weeds or even saplings growing from the gutter means months of compacted compost-like debris. It's well past time for a clearance.
3. Damp patches on walls below the gutter line
Brown or dark patches on internal walls just below ceiling level, or on external brickwork under the gutters, usually trace back to overflowing or leaking gutters.
4. Gutters sagging or pulling away
Waterlogged debris is enormously heavy. Sagging runs and gutters pulling away from the fascia mean the brackets are failing under the load — clean them now before brackets snap and the whole run needs replacing.
5. Water dripping from joints
Joints that used to be dry now dripping in rain suggests seals have failed — often because standing water has been sitting against them for months.
6. Staining on the brickwork
Green algae streaks or dark tide-marks on bricks below the gutter line show where water has been regularly overflowing.
7. Birds and pests showing interest
Birds nesting in gutters, or wasps and insects attracted to the damp debris, are nature's way of telling you there's a habitat up there that shouldn't be.
Need Your Gutters Cleaned?
We're based in Newton-le-Willows and cover the North West. Free fixed quote, no call-out fee.
Open 24 hours, 7 days a week · Newton-le-Willows, Merseyside WA12
Related Questions
Water overflowing in rain, plants growing in the gutter, damp patches below the gutter line, and sagging runs are the main signs. If in doubt, we can inspect and show you photos.
More Gutter Guides
How Much Does Gutter Cleaning Cost in the UK? (2026 Guide)
Gutter cleaning costs £75–£150 for most UK homes. What affects the price, typical costs by property type, and red flags.
What's the Best Time of Year to Clean Gutters in the UK?
Late autumn is the best time to clean gutters in the UK — after leaf fall. Why timing matters, plus spring cleans.
What Happens If You Never Clean Your Gutters?
Never cleaning gutters leads to overflow, damp, damaged brickwork and rotten fascias. The full damage timeline.