Behind the fridge is not a random place to find them. It is the single most likely spot in a domestic kitchen, and understanding why tells you what to do.
Because that is where warmth, moisture and darkness meet. A fridge or freezer motor housing runs warm and is never disturbed; a washing machine or dishwasher adds moisture from its plumbing.
Finding them there means you have found the harbourage, not just a sighting — which is more useful information than it feels like at the time.
If you were designing cockroach habitat you would arrive at something very like the gap behind a fridge.
Check the motor housing itself, the back panel, the floor beneath, and the wall behind — including any gap where pipes or cables pass through.
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View Cockroach Control Wealdstone →| What you find | What it suggests |
|---|---|
| One or two insects | Harbourage here, population probably larger |
| Droppings and smearing | Established, regularly used |
| Egg cases | Breeding on the premises |
| Shed skins in numbers | An active, developing population |
| Damp behind the appliance | A leak sustaining them — needs fixing |
| Insects in daylight | A larger population competing for space |
The damp row matters most. Moisture is what sustains cockroaches, and a slow leak behind a washing machine will defeat any treatment until it is fixed.
A photograph settles it. Send one with your enquiry rather than guessing.
A question people ask: does the appliance need replacing? Almost never.
Cockroaches shelter behind and beneath appliances and sometimes inside the motor housing. Cleaning and treatment deal with that. Replacing a fridge because cockroaches were behind it is expensive and does nothing about the wall void they came from.
The gap behind your kitchen units and appliances may connect through the wall to the same space next door. Treat your property, and tell the landlord or managing agent — particularly if there is a food business in the building.
Not necessarily, but finding one behind an appliance means you have found where they shelter, which is worth acting on.
A hygiene concern rather than a direct danger — associated with contamination of surfaces and food, and with triggering asthma and allergy symptoms.
Leave it pulled out until treatment if you can, so the area is accessible. Tell us what you found.
An entirely different problem, same published approach — wasp nest treatment in Wealdstone is £90 fixed cost, guaranteed.
Warmth from the motor housing, darkness, accumulated debris and a route through the wall behind. It is the most likely spot in a domestic kitchen.
Live insects, droppings, egg cases, shed skins, a musty smell, and any damp from a plumbing leak.
Breeding on the premises. Small brown capsule-shaped objects tucked into crevices.
No. It scatters a concentrated population into the wall void and potentially into a neighbouring flat.
Considerably. Moisture sustains cockroaches, and a slow leak will defeat any treatment until it is fixed.
Almost never. Cleaning and treatment deal with it; replacing does nothing about the wall void.
Yes — beetles and silverfish are commonly mistaken for cockroaches. A photograph settles it.
Leave it pulled out until treatment if you can, so the area is accessible.
Do not spray. Tell us what you found and whether there is any damp behind it.
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