Watch It Rain Before You Ring: Five Gutter Clues You Can Spot From the Sofa

Here's a trick we tell everyone: don't wait for a problem to check your gutters — wait for rain. A proper British downpour is the best diagnostic tool there is, and you don't need a ladder, a torch or even shoes. Just a window with a view of the roofline and five minutes of watching.

Why Rain Tells You Everything

A gutter does one job: catch water and move it away. When it's working, you barely notice it. When it isn't, the rain exposes every fault in glorious detail. So next time the sky goes that familiar slate grey, put the kettle on and watch what happens.

1. Water Pouring Over the Sides

If the gutter's doing its job, rainwater should disappear into the channel almost instantly. If instead you see a sheet of water spilling over the front edge — like a waterfall along the eaves — you've almost certainly got a blockage. Leaves, moss and the odd tennis ball build up until the gutter simply can't cope, and the water takes the path of least resistance: straight down your wall.

2. Drips at the Joints That Keep Going

Watch the joints and brackets during the rain, then keep an eye on them after it stops. A little dripping during a cloudburst isn't unusual. But if water keeps dribbling from a union or downpipe joint long after the rain has passed, the seal has likely failed or the section has dropped out of alignment. That's a repair, not a clean — and it's worth knowing before you ring.

3. Water Running Behind the Gutter, Down the Fascia

This one's sneaky. Sometimes the gutter looks fine from the front, but water is streaming down the wall behind it, staining the fascia board and soaking the wall below. It usually means the gutter is misaligned or overflowing backwards. Look for dark streaks on the fascia or green algae on the brickwork beneath — those stains are the clue that water's been going where it shouldn't for a while.

4. Something Green Growing Up There

You don't even need rain for this one, but rain makes it obvious. If you can see grass, moss clumps or a small seedling sprouting along the gutter line, that run is holding soil and organic muck — which means it holds water too. Plants need roots, and roots need something to grow in. A gutter with greenery is a gutter that hasn't drained properly in a long time.

5. A Downpipe That Gulps and Gurgles

During heavy rain, listen as well as look. A healthy downpipe takes the flow without complaint. One that backs up, overflows at the shoe at the bottom, or gurgles like a slow pint is struggling — often blocked at the bend or the underground drain. If water bubbles back out at ground level, the problem may be below the guttering entirely, and it's worth mentioning that when you call.

How This Helps You Get a Better Quote

When you ring a gutter firm, the more precisely you can describe what you saw, the faster and fairer the quote. "My gutters are bad" could mean anything. But: "water pours over the front halfway down the back run, and there's a joint on the left side that drips for an hour after rain" tells us roughly what we're dealing with before we even arrive. That means fewer surprises, and often a smaller bill.

A few things worth noting down:

• Which side of the house the problem is on (front, back, left, right)
• Whether it happens in light rain or only heavy downpours
• How long any dripping continues after the rain stops
• Any stains, moss or plants you've noticed on the roofline

When to Stop Watching and Start Ringing

If you spotted one of these signs, you don't need to panic — but don't leave it until next winter either. Small blockages become bigger blockages, and dripping joints become rotten fascias. The rainy day test takes five minutes, costs nothing, and tells you exactly what your gutters are trying to say. And if what they're saying needs a professional ear, you know where we are.