Tennis Balls, Bird Nests and a Whole Lot of Moss: What We've Pulled Out of British Gutters
You'd be amazed what a ladder and a good scoop turn up. In over a decade of clearing gutters, we've emptied out everything from children's toys to a fully fledged bird hotel. It's a running joke on the job that no two gutters are the same — but the odd things we find usually have a story to tell about how well a home's drainage is coping.
So, in a slightly light-hearted spirit, here are the greatest hits from our gutter-clearing career — and, more usefully, what each one teaches you about looking after your own roofline.
The Classics: Leaves, Twigs and Moss
Let's start with the usual suspects. Every autumn, gutters up and down the country fill with leaves — plane and sycamore leaves are especially troublesome because they're big, flat, and mat together into a soggy pulp that blocks downpipes like a plug in a sink.
Then there's moss. Homes near overhanging trees or older tiled roofs tend to collect it in quantity, and when we clear a badly affected gutter, the moss can come out in slabs thick enough to plant something in. It's harmless in the garden, but on a roofline it holds water against your fascia boards and slowly rots them.
The lesson: if your roof has lots of moss, your gutters will need checking more than once a year — the rain washes it down continuously.
The Tennis Ball (Yes, Really)
Our most famous find — at least in our house — was a tennis ball wedged perfectly into a downpipe outlet on a semi in Reading. The homeowner had been chasing a mysterious overflow for two summers. One ball, removed, problem solved.
It happens more than you'd think. Footballs, Frisbees, the occasional wellie boot flung by a child with a strong arm. Anything round and firm creates a dam that traps leaves behind it, so a small blockage quickly becomes a big one.
The lesson: if you hear a ball go over the roof and never see it come down, it's worth checking the gutters before winter.
Full Bird Nests and the Occasional Tenant
Spring gutters are prime real estate for starlings, sparrows and even the odd jackdaw. We've lifted out nests the size of a rugby ball — and once, mid-clear, come face to face with a very unimpressed pigeon who'd clearly decided the corner of a bungalow was home.
A word of care here: active nests are protected under UK wildlife law, so if you spot one, leave it be until the birds have fledged. Afterwards, a gutter brush or spike guard can discourage a repeat tenancy.
The lesson: birds nesting in your gutter usually means standing water or debris build-up — they're not fussy, but they are a clue.
Plants With Ambition
We've pulled out self-seeded buddleia, a stubborn little sycamore sapling, and enough grass to call it a lawn. Seeds blow into compacted debris, take root in damp grit, and before long you've got a small garden growing above your windows.
Roots are the real problem. They push into joints, displace brackets, and force water over the edges rather than down the pipe.
The lesson: anything green growing out of your gutter line is a sign it hasn't been cleared in a long while.
The Genuinely Odd Stuff
Honourable mentions from the archive: a dart (no idea), a house key (the owner was delighted), a child's welly, an unopened Christmas card, and enough conkers in one Coventry gutter to fill a bowl. None of it is dangerous on its own — but all of it adds weight and blocks flow.
How to Spot a Blockage Before It Costs You
You don't need to climb a ladder to know something's wrong. Watch for:
- Water spilling over the sides during rain instead of running to the downpipe
- Plants or moss visible at the gutter edge from the ground
- Birds repeatedly visiting the same roofline in spring
- Damp patches or green algae on exterior walls below the gutter
- Sagging sections — a gutter holding a gutter-full of debris is heavy
A Simple Routine That Works
For most UK homes, clearing gutters once a year — ideally in late autumn after the leaves have dropped — is enough. If you're surrounded by big trees, or you've had moss treatment on the roof, go twice. And always check after any storm; a single dislodged branch can cause a surprising amount of chaos.
Clear gutters, no fuss — that's the whole philosophy. And if you ever find a tennis ball up there, at least you'll know you're in good company.
