Can rats damage your car? The rise in rat infestations

If you live in the UK, you’re probably aware of the number of headlines and even sightings of rats lately across the country. The rodent population is rapidly on the rise, especially in built-up up busy areas such as London. But the question is, how much of a threat do these pests really pose, and are you prepared for the risks?
What’s going on?
Rat infestations have remained high over the past few years, with London accounting for nearly a quarter of all rat-related reports in the UK.
As a result of the rise in rat reports – according to Aviva – there has been a “28% increase in motor claims involving rodent-related damage between 2023 and 2024, with the majority occurring in winter.”.
As the temperature drops, it’s very common to find rodents such as rats, mice, and squirrels seeking warmth and shelter. Now may be the time to start thinking about what you can do to pest-proof your property and vehicles to prevent rats from damaging your cars and unwanted guests from overstaying their welcome.
What attracts rats to your house?
There are many factors which contribute to attracting rats close to your homes, vehicles and properties. These include:
- Flooding
- Cold weather
- Litter
- Overflowing bins

How much damage can rats really cause?
Rats might be small, but they can cause significant damage to your cars!
Rats help keep their teeth from overgrowing by constantly gnawing through materials all shapes and sizes, meaning they will chew through almost anything. The British Pest Control Association (BPCA) notes that rats can even bite through concrete and metal, and are even known to have chewed through car engines whilst nesting in cars.
Aviva also stated, “The average claim value also rose 11% year-on-year, reaching £2,494. In severe cases, the cost of repairs exceeded £20,000, with vehicles sometimes written off entirely due to extensive wiring and engine damage”.
Aside from physically damaging property, rats also pose a serious health threat. They can carry a vast number of diseases, so you must seek professional advice if you have a rat infestation.

What are the signs of a rat infestation?
Keep an eye out for common warning signs around your property and your vehicle, which could signify you have rodents present:
- Rodent droppings are typically small, dark pellets.
- Unusually strong smells, which can signify urine or odours from the rodents.
- Gnaw marks on wiring, pipes, plastic, wood, and other materials.
- New holes that are present
- Smudge marks, small footprints, or damage to your car
- Displaced rubbish, wrappers or debris from bins
Rats are excellent climbers and can squeeze through tiny gaps, so check every level of your property and vehicles, and garages. The BPCA recommends being especially thorough when investigating potential entry points.
What can you do to protect your car from rats?
London Network for Pest Solutions tips for protecting your car from damage caused by rats:
- Park away from bins or food sources
- Use a garage if possible, and keep doors closed
- Keep parking areas well-lit
- Clean the car interior and remove food wrappers or containers
- Move the car regularly to discourage nesting
Rats are more than just a nuisance; they can damage property, spread disease, and cost thousands in repairs. With infestations on the rise, it’s worth taking preventive action before these unwelcome guests find their way in. A few proactive steps now can save you a lot of hassle (and money) down the line.
If you need insurance advice for your vehicle or property, please contact us to speak to a member of the team today.
