Most rat problems inside a home begin outside it. Rats are drawn into gardens by food, water and shelter, and once they're comfortable outdoors, the walls of the house become the next step. As winter arrives and food becomes harder to find, they start pushing closer to buildings. Managing your garden, bins and outdoor storage is one of the simplest ways to stop that happening.
Signs rats are using your garden
Rats are mostly active at night, so you're more likely to see their signs than the animals themselves. Look for:
- Burrows around 6 to 9cm wide, often under sheds, decking, paving or compost bins
- Well-worn runs through grass or along the base of fences and walls
- Droppings, which are dark, about the size of a grain of rice or larger
- Gnaw marks on wooden sheds, plastic bins or hose pipes
- Smear marks, where their greasy fur rubs along walls and fences
Oldham Council's rats guide has more detail on identifying rat activity and the treatment options available to residents.
Bins: the most common attraction
Overflowing or damaged bins are one of the main reasons rats appear in residential streets. Make sure lids close fully and replace any bins with holes or broken lids. Avoid leaving bin bags on the ground beside bins, even for a single night. If your general waste bin regularly overflows, try to reduce what goes into it by recycling more, or check with your council whether you're entitled to extra capacity.
Rinse food containers before putting them in the recycling, and keep food waste caddies closed and emptied regularly. Bins should ideally sit on a hard surface, away from the walls of the house, rather than on grass or soil where rats can burrow beneath them.
Compost bins
Composting is good for the garden, but a poorly managed compost bin can become a food source and a warm nest. Only compost raw fruit and vegetable peelings, garden waste and cardboard. Never add cooked food, meat, fish, dairy or bread. Use a closed bin rather than an open heap, and place it on a fine wire mesh or paving slabs to stop rats burrowing in from underneath. Turning the compost regularly also disturbs anything trying to settle.
Bird feeders and pet food
Feeding birds through the winter is a kind thing to do, but fallen seed under a feeder is one of the most common reasons rats visit gardens. Use a seed tray under the feeder, feed smaller amounts more often, and clear spilled seed regularly. Store bird seed in a metal container with a tight lid. If you feed pets or chickens outdoors, don't leave food out overnight.
Sheds, decking and outbuildings
The space under a shed or decking is dry, sheltered and close to the house, which makes it ideal for rats. Check around the base of sheds for burrows and gaps. Where you can, fit galvanised mesh around the base to stop access. Inside sheds, keep items off the floor and get rid of old sacks, cushions and cardboard that could be used as nesting material.
A shed full of old furniture, paint tins and broken tools gives rodents plenty of hiding places and makes it very hard to see what's going on. Our garden shed clearance page explains how outbuildings are usually cleared and what can be recycled.
Green waste and garden rubbish
Piles of branches, grass cuttings, leaves and hedge trimmings make warm, sheltered spots for rats, especially when left against a fence or wall through the winter. The same goes for stacks of timber, rubble, old paving slabs and broken garden furniture. Where possible, clear these before the colder months, use your council's garden waste collection, or take larger amounts to a household recycling centre. Our garden waste clearance page covers what's involved for larger amounts.
Leftover rubble and builders' materials from home improvements are another common problem. If a project has left a pile of waste at the side of the house, our builders waste removal page explains how this kind of material is usually handled.
Water sources
Rats need to drink regularly. Leaking outside taps, dripping gutters, blocked drains and standing water in plant pots or old containers all provide water. Fix leaks, empty containers and make sure drains are flowing properly.
Bulky items left outside
Old sofas, mattresses and fridges left in a garden or on a driveway are quickly used by rodents. Fabric and foam make excellent nesting material, and the space underneath gives shelter. Avoid storing bulky items outside while waiting for a collection. Our pages on sofa removal and mattress removal explain how these items are usually collected and recycled.
When to get help
If you've taken these steps and still see signs of rats, it's time to contact a professional. The British Pest Control Association's rat advice explains what to expect from a treatment, and your local council can advise on services in your area. Rats can carry diseases, including leptospirosis, so avoid handling droppings or nesting material without gloves. The NHS guide to leptospirosis covers the symptoms to look out for.
A tidy garden won't guarantee you never see a rat, but it makes your home a much less attractive place to settle. Most of the work is simple: close the bins, clear the clutter, and remove easy food and shelter before winter arrives.