How to Get Rid of Cockroaches in a Flat or House

Seeing a cockroach run across the kitchen floor when you flick the light on at night is unpleasant, and it rarely means you have just one. Roaches are nocturnal, so the ones you see are usually a small part of what is living behind the units.

Getting rid of them is mostly about finding where they hide and cutting off what they need. Here is how an experienced pest controller would think about it, and where home efforts tend to run out of road.

Confirm what you are dealing with

Before anything else, check that it really is a cockroach. Beetles, silverfish and even large house crickets get mistaken for them. A cockroach has a flattened, oval body, long whip-like antennae and moves fast, usually running for cover as soon as it is exposed.

Different species behave differently, so a clear sighting or a photo is useful. Keep one dead specimen in a sealed bag or tub if you can; it makes identification much easier.

Work out where they are living

Roaches want warmth, moisture, food and tight gaps to squeeze into. In a flat or house that usually means the kitchen, followed by bathrooms, utility rooms and boiler cupboards.

Torch work after dark tells you a lot. Look behind the fridge and cooker, under the sink, around the dishwasher and washing machine hoses, and where pipes pass through walls or floors.

• Small dark droppings that look like ground pepper or coffee grounds
• A musty, oily smell in a closed cupboard
• Pale, brown egg cases tucked into crevices
• Shed skins in corners or behind appliances
• Live roaches in the daytime, which often points to a larger population

Cut off food, water and shelter

Good housekeeping will not clear an infestation on its own, but it makes every other step work better. Wipe down worktops and the floor at night, empty the kitchen bin daily and do not leave dirty pots overnight.

Store dry food, pet food and cereals in sealed containers, and take pet bowls up at night. Fix dripping taps and leaking waste pipes, because roaches can go a long time without food but not without water.

Sealing gaps around pipes, skirting boards and cupboard backs helps, though it is rarely enough where the building itself is sheltering them.

What shop-bought products can and cannot do

Sprays, powders, traps and baits are sold for home use. Sticky monitoring traps are genuinely useful for showing where roaches are travelling and how many there are.

The limits are real, though. Sprays can scatter roaches deeper into walls rather than reach the hidden population, and some roaches avoid treated surfaces. Always follow the label, keep products away from food, children and pets, and do not mix products.

If you are still seeing roaches after a couple of weeks of sensible effort, that is usually the point where a proper inspection pays for itself.

When to bring in a professional

Call for help if you are seeing roaches in daylight, finding egg cases, or if neighbours have the same problem. A technician will identify the species, trace the harbourage areas and choose a treatment plan to suit your property, which may include follow-up visits.

Essex Pest Solutions treats cockroaches in homes, flats, rental properties and businesses. The right approach depends on the species, how widespread the activity is and how the building is laid out, which is why we inspect before promising anything.

Frequently asked questions