Every year, as the nights draw in and the first frosts arrive, mice and rats start looking for somewhere warm, dry and close to food. Pest controllers across Greater Manchester typically see a rise in rodent activity from autumn onwards, and most of those problems start with a home that offered an easy way in and a comfortable place to settle. The good news is that a few hours of checks and some better habits can make your home far less attractive. Here is a practical, room-by-room guide to getting ready for winter.
Why winter brings rodents indoors
Mice and rats don't hibernate. When food becomes scarce outside and temperatures fall, they move towards buildings that give off heat and smell of food. A house mouse can squeeze through a gap roughly the width of a pencil, and a young rat can get through a hole about the size of a 50p coin. Once inside, they breed quickly. A single pair of mice can turn into dozens within a few months if they have food, water and undisturbed nesting material, so prevention is far easier than dealing with an established problem.
The kitchen: remove the reasons to stay
The kitchen is where most indoor rodent problems are first noticed, because it is where the food is. Start by moving dry foods such as cereal, rice, pasta, pet food and bird seed into sealed plastic or glass containers. Cardboard boxes and paper bags are easy for a mouse to chew through in minutes.
Pull out the cooker, fridge and washing machine if you can, and clean behind and underneath them. Crumbs and grease build up in these spots for years and are a reliable food source. While the appliances are out, look at where pipes and cables come through the wall. Gaps around these entry points are one of the most common routes into a kitchen, and they can be filled with wire wool and sealant or a suitable filler.
Finally, empty the kitchen bin every night through the winter months, keep a tight-fitting lid on it, and don't leave pet bowls full of food overnight.
The living room and bedrooms: cut back on nesting spots
Rodents look for quiet, dark spaces lined with soft material. Piles of clothes, stacks of newspapers, cardboard boxes and bags of fabric under beds or behind sofas are ideal. Go through these spaces and reduce what's stored there. Keep anything you want to hold on to in sealed plastic boxes with lids rather than open bags or cardboard.
It also helps to keep furniture slightly away from walls in rooms that aren't used much, so you can see along the skirting boards. Droppings, gnaw marks or a musty smell are much easier to spot when the edges of the room are clear.
The loft: the most overlooked space in the house
Lofts are warm, rarely visited and often packed with old belongings, which makes them one of the most common places for mice to nest in winter. Take a torch up and check for droppings, shredded insulation or chewed boxes. Look at the eaves where the roof meets the walls, as gaps here are a common way in.
If your loft is full, consider sorting it before the colder weather really sets in. Old clothes, books and paperwork stored in cardboard make excellent nesting material. Anything worth keeping should go into sealed containers, and anything that isn't can be recycled or disposed of properly. Our guide to a full house clearance explains how a bigger clear-out usually works if the job feels too large to do on your own.
The garage and shed
Garages and sheds are often the first building a rodent finds, and from there it's a short step into the house. Check the bottom of the garage door for gaps and fit a brush or rubber strip if daylight shows underneath. Store bird seed, grass seed and pet food in metal bins with lids. Clear piles of old timber, cardboard and garden furniture covers off the floor, and keep shelving lifted so you can see underneath.
If the garage has become a dumping ground over the years, a garage clearance or shed clearance is often the single most effective step you can take before winter.
Outside: the first line of defence
Walk around the outside of your home and look at the property from a rodent's point of view. Check air bricks for damage, look for holes where pipes enter the walls, and make sure the doors and windows close properly. Trim back any plants or ivy growing up against the walls, as these give rodents cover and a route up to the roof.
Keep outdoor bins closed and in good condition, avoid putting cooked food in compost bins, and don't overfeed birds. Fallen seed under a bird feeder is one of the most common reasons rats appear in gardens. Piles of rubble, timber, old furniture or green waste close to the house also provide shelter, so it is worth keeping these areas clear. Our garden waste clearance page explains what can be removed and recycled.
What to do if you already have a problem
If you see droppings, hear scratching in the walls or ceiling at night, or notice gnawed food packaging, it is best to act quickly. Most Greater Manchester councils offer pest control advice and a paid treatment service for homes. Manchester City Council has a guide to booking a treatment, and the British Pest Control Association can help you find a qualified, insured pest controller near you.
Treatment works best alongside the steps above. Removing food, sealing gaps and clearing nesting spots means the problem is far less likely to come back once it has been dealt with.
A quick winter checklist
- Store dry food and pet food in sealed containers
- Clean behind and under kitchen appliances
- Seal gaps around pipes, cables and air bricks
- Fit brush strips to the bottom of external doors and garage doors
- Check the loft for droppings and damaged insulation
- Replace cardboard storage with lidded plastic boxes
- Clear clutter from lofts, garages and sheds
- Keep bins closed and empty the kitchen bin daily
- Cut back plants and ivy growing against walls
Rodent-proofing doesn't need to be expensive or complicated. Most of it comes down to removing the food, shelter and easy access that mice and rats are looking for. An afternoon spent on these checks now can save a great deal of stress over the winter months. If you're clearing a property for a relative, our hoarder house clearance page has more advice on approaching a heavily cluttered home with care.