London is a vibrant city filled with history, culture, and diverse communities—but like any major urban area, it’s not immune to pest problems. From quiet suburban streets to busy city flats, pests find plenty of ways to sneak into homes and disrupt daily life.

Understanding which pests are most common and how to deal with them can help you keep your property safe, clean, and stress-free. In this article, we’ll walk you through the 10 most frequent household pests in London—and what you can do about them.

1. Rats

Rats are a year-round problem in London, especially in areas with older sewage systems and dense housing. These rodents are more than just a nuisance—they can chew through wires, contaminate food, and spread disease.

How to deal: Seal entry points, keep food stored securely, and avoid leaving rubbish out overnight. If signs of infestation appear, it’s best to seek professional pest control.

2. Mice

Smaller than rats but just as problematic, mice often enter homes during colder months seeking warmth. They can nest behind walls or under floorboards and multiply quickly if not addressed.

How to deal: Use traps, block small gaps with steel wool or sealant, and ensure food crumbs are cleaned regularly.

3. Cockroaches

Cockroaches thrive in damp, dark environments such as kitchens, basements, or behind appliances. They are fast-moving, hard to catch, and often indicate a larger hidden infestation.

How to deal: Deep cleaning, reducing moisture, and using gel baits or professional sprays can help. Infestations may require expert treatment.

4. Bedbugs

These tiny pests are masters at hiding in mattresses, furniture, and even luggage. They feed on human blood at night, leaving itchy bites and disrupting sleep.

How to deal: Wash bedding at high temperatures, vacuum regularly, and inspect secondhand furniture. Professional heat treatments are often the most effective solution.

5. Ants

Ants are a common summer problem in London homes. While most are harmless, they become a nuisance once they start invading kitchens and pantries.

How to deal: Keep counters clean, store food in airtight containers, and locate the nest if possible. Bait stations can help eliminate entire colonies.

6. Wasps

Wasps become especially aggressive in late summer and can pose risks with their painful stings. They tend to build nests in attics, sheds, or wall cavities.

How to deal: Do not attempt to remove a wasp nest on your own—call professionals if you spot one near your home. Avoid leaving sugary drinks or food outside.

7. Fleas

If you have pets, fleas are a risk. These tiny parasites can infest carpets, soft furnishings, and bedding. Even homes without pets can have flea problems if they were brought in unknowingly.

How to deal: Treat pets with vet-approved flea control, vacuum frequently, and wash linens thoroughly. Severe cases may require fumigation.

8. Silverfish

Silverfish love damp, humid spaces like bathrooms and basements. They feed on paper, glue, and fabrics, often damaging books or clothing.

How to deal: Reduce moisture with dehumidifiers, seal cracks in walls, and store books or fabrics in sealed containers.

9. Clothes Moths

These pests don’t fly around much, but they quietly lay eggs in dark wardrobes and storage spaces. Their larvae can cause serious damage to clothes, especially wool and silk.

How to deal: Use moth repellents, keep clothes clean and dry, and vacuum regularly inside wardrobes. Cedar wood or lavender sachets can deter moths naturally.

10. Spiders

While most spiders in London are harmless, they can be unsettling to homeowners—especially if they start to multiply. Some species like the false widow have become more common in recent years.

How to deal: Keep windows and doors sealed, reduce clutter, and clean regularly to discourage webs. If you’re concerned about a venomous species, seek expert advice.

When to Call in the Professionals

While DIY methods can help manage pests initially, some infestations can grow beyond control. That’s when it’s crucial to consult experts. For trusted solutions and rapid response, many homeowners turn to professionals for pest control London services. These experts can assess the situation, use safe and effective treatments, and help prevent future infestations.

Final Thoughts

Pest problems are an unfortunate reality of urban living, but they don’t have to take over your home. By identifying issues early, taking preventive steps, and knowing when to seek help, you can keep your living space healthy and comfortable.

Whether it’s rats in the attic, bedbugs in the mattress, or ants in the kitchen—staying informed and proactive is your best defense.