September and October are the busiest weeks of the year for house mouse call-outs across Nottingham. As gardens and hedgerows cool down and natural food becomes scarce, mice head indoors looking for warmth, shelter and an easy meal. This year that shift is landing at the same time as two very different local triggers — a new academic year in Lenton, Radford and Forest Fields, and a wave of autumn home improvements in Wollaton, Bilborough and Aspley — and both are quietly making mouse problems worse.
Why Late September Is Peak Mouse Season
Mice don’t hibernate, but their outdoor food sources — seeds, insects, fallen fruit — largely disappear by early autumn. A drop of just a few degrees overnight is often enough to send them looking for a warmer, drier place to nest, and a house with even a small gap around a pipe, airbrick or door threshold is far more inviting than a cold garden. Once a breeding pair gets inside, numbers can build quickly, so the first few weeks of autumn are the cheapest and easiest time to deal with an infestation — and the worst time to ignore the early signs.
Lenton, Radford and Forest Fields: A Fresh Wave of Student Tenancies
This part of Nottingham has one of the highest concentrations of student housing in the city, sitting between the University of Nottingham and Nottingham Trent campuses. Late September and early October bring thousands of new tenants into shared houses, many of whom are living independently for the first time and don’t yet have settled routines around bin day, food storage or washing up. In the older Victorian and Edwardian terraces that dominate these streets, suspended timber floors, original skirting boards and gaps around service pipes give mice easy routes from the cellar or under-floor void straight into the kitchen. A bag of pasta left open on a worktop or bin bags left out overnight is often all it takes to turn one exploring mouse into a nest under the floorboards within a few weeks.
Wollaton, Bilborough and Aspley: Autumn Improvements Opening New Gaps
A few miles out, Wollaton, Bilborough and Aspley are mostly owner-occupied 1930s to 1960s semis and terraces, and September is a popular month for loft insulation top-ups, cavity wall work and clearing out sheds and greenhouses before winter. Ironically, this kind of work can create new mouse access rather than preventing it — insulation installers don’t always replace airbrick covers or mesh vents correctly, and disturbed loft spaces can expose old nesting sites that had been dormant for years. The proximity to Wollaton Park and the green spaces and allotments around Aspley also means a larger resident mouse population on the doorstep than in the denser city terraces, so as gardens are tidied and undergrowth cut back for winter, more mice are displaced towards house walls and airbricks looking for a new home.
Signs You Have Mice, Not Just “A Mouse”
- Droppings — dark, rice-grain to grape-pip sized, often clustered near food or under the sink
- Gnaw marks on skirting boards, food packaging or cables
- Scratching or scampering in walls, floors or the loft, usually most noticeable after dark
- Greasy smear marks along skirting boards and along regularly used routes
- Nesting material — shredded paper, fabric or insulation — tucked into quiet corners, airing cupboards or behind appliances
Seeing one mouse during the day, when they’re normally nocturnal, is also a strong sign that a nest nearby is already overcrowded.
Why DIY Traps Alone Often Fall Short
Supermarket traps and bait stations can catch individual mice, but a breeding female can produce a new litter roughly every three weeks, so trapping alone rarely keeps pace once a population is established. The traps also don’t address the underlying issue: the gap, crack or damaged airbrick that let the mice in to begin with. Without finding and properly sealing that entry point, new mice tend to move in again within weeks of the last one being caught.
What Professional Treatment Involves
A proper visit starts with a full inspection of the property to identify entry points, nesting areas and the scale of the problem, followed by a tailored trapping and baiting plan and practical proofing recommendations — things like brush strips, mesh guards and mortar repairs that homeowners and landlords can act on straightaway. A follow-up visit checks the treatment has worked and that no new activity has started. Residential treatment starts from £80, and for landlords and shared student houses in Lenton, Radford and Forest Fields, a single visit can often cover the whole property rather than treating each let separately.
Get Ahead of It
Whether you’re a new tenant hearing scratching in the walls for the first time or a homeowner who’s just had loft work done, the next few weeks are the easiest time of year to deal with mice before numbers build up over winter. NestBusters covers the whole of Nottingham, including Lenton, Radford, Forest Fields, Wollaton, Bilborough and Aspley — call 0742 984 9483 or visit nottinghampest.co.uk to book an inspection.
