Autumn maintenance
Leaves in gutters and water at the footings
Send a short description of what you have noticed around your home. A specialist firm will read it and reply with their view on whether the ground needs attention, at no cost to you.
Where the leaves come from in late September
By late September, deciduous trees across Kent are already dropping. Sycamore, oak and ash shed early, and even a light wind pushes the leaves into valleys and corners where they collect against the fascia boards. Gutters that were clear in August can fill within days.
Rain has nowhere to go once the channel is blocked. It spills over the front edge or backs up under the tiles, running down the outside of the wall instead of travelling along the gutter to the downpipe. The brickwork stays wet for longer than it should, and the mortar joints absorb moisture they would normally shed.
Homes surrounded by mature trees need more frequent clearing. A single afternoon of wind can undo a morning spent on a ladder. If the house sits on clay, the extra water landing beside the wall matters more than it would on sand or chalk, because clay holds onto moisture and swells when it receives it.
How overflowing water softens the ground
When rainwater pours off a blocked gutter, it falls straight down beside the foundation. Over weeks, the soil there becomes saturated. On clay ground, saturation causes swelling; on sandy or gravelly ground, it washes fine particles away. Both processes change how the earth supports the wall above it.
The effect is rarely uniform. One corner of the house might sit under a heavy oak while the rest of the roofline drains cleanly. That single corner receives far more water than the others, so the ground beneath it behaves differently. Walls respond to uneven support by cracking, usually starting near the weakest point such as a window opening or a joint between old and new brickwork.
A leaking downpipe joint does the same thing on a smaller scale. Water escapes halfway down the pipe and pools against the masonry. By the time a stain appears on the inside plaster, the soil outside has been wet for some time. Checking the full length of each downpipe during heavy rain reveals these leaks before they affect the footings.
Why autumn clearing matters more than people expect
Many homeowners clear gutters in spring and assume the job is done until next year. But autumn is when the volume of debris peaks and the rainfall increases. A gutter half-full of moss and silt in July might cope with a summer shower, yet the same blockage in October forces water over the edge during sustained rain.
Clearing means removing everything, not just the visible leaves. Fine material builds up behind the brackets and in the hopper heads where the gutter meets the downpipe. Running water through the system after scooping out the debris confirms whether the flow reaches the drain. If it backs up, the obstruction is lower down and needs a rod or a flush.
Homes built on former orchards or reclaimed land often have shallow foundations. They rely on consistent drainage to keep the ground stable. Extra water landing in one spot for several weeks is enough to cause movement. Clearing the gutters removes that variable before it starts acting on the soil.
Signs that water has already reached the footings
The first sign is often visual rather than structural. Dark patches on the outside brickwork below the gutter line show where water has been running. Algae or moss growing on the lower courses indicates prolonged dampness. Inside, a tide mark on the skirting board or a musty smell near the floor suggests moisture is tracking through the wall.
Cracks caused by localised wetting tend to appear near the affected corner. They may be diagonal, stepping through the mortar joints, or vertical if the wall is separating from an adjacent return. Doors and windows in that part of the house begin to stick as the frame distorts.
If these signs appear after a period of heavy rain and blocked gutters, the cause might be temporary saturation rather than deep subsidence. But temporary problems become permanent if the water keeps arriving every time it rains. A structural movement survey establishes whether the ground has shifted or simply softened, and a drainage CCTV survey can confirm whether the underground pipes are still carrying water away from the house.
Ask a specialist to look at your home
Send details of what you have noticed. A separate specialist firm will review them and advise whether the ground or drainage needs attention. There is no fee for sending an enquiry and no obligation to accept any work proposed.
- No fee to enquire
- No obligation to proceed
- Specialist firms do the work