Cockroaches in a Herolds Bay house that's been locked up

You unlock the door after a few months away, switch on the kitchen light and something runs under the fridge. Here's how we deal with it properly.

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American cockroach, treated by our cockroach control in Herolds Bay

If you're finding cockroaches in your Herolds Bay home, especially one that stands closed for part of the year, the answer is a targeted treatment where they actually breed: behind and under appliances, inside cupboard hinges, around the geyser and in the drains. Gel bait placed in those spots, backed by a residual spray where it's needed, clears most homes. Spraying the floor you can see doesn't.

Why a quiet beach village still gets cockroaches

Herolds Bay is small and peaceful, and for much of the year a lot of the houses on the slopes above the beach are empty. That suits cockroaches. A closed house is dark, nobody disturbs them, and there's usually a bit of something to live on: crumbs in the toaster, a forgotten packet of rusks, grease under the stove. Sea air keeps things humid, and cockroaches like humidity.

They don't need a dirty house to survive, either. A cockroach can last a long time on very little, so a clean, empty kitchen can still hold a small population that grows the moment people arrive and start cooking again.

Which cockroach have you got?

It's worth knowing, because the treatment differs a little.

  • German cockroaches are small, light brown and live indoors, almost always in the kitchen or bathroom. They come in with boxes, bags and secondhand appliances, and they breed fast. If you're seeing small ones during the day, the population is already big.
  • American cockroaches are the large reddish-brown ones that sometimes fly on warm nights. They usually live in drains, garden waste and under paving, and wander inside through floor drains, gaps under doors and weep holes.

If you're not sure, our pest identification page will help you tell them apart.

What we do on a Herolds Bay job

We start with a look around the kitchen, bathrooms, laundry and outside drains to find where they're hiding and how they're getting in. With German cockroaches, the hotspots are nearly always within a metre or two of warmth, water and food. With American cockroaches, the trail usually leads back outside.

For the indoor kind we use gel bait, placed in small dots in cracks, hinges and the backs of appliances. Cockroaches eat it, go back to their hiding spots and pass it on to others, so it reaches the ones you never see. Where the larger cockroaches are coming in from outside, we add an odourless, non-staining residual spray as a barrier around doors, drains and the base of the walls.

You don't need to empty your cupboards or leave the house. Once the spray has dried, it's safe for children and pets.

Between visits: keeping a closed-up house clear

Most of the work in a holiday home happens the day you leave, not the day you arrive.

  1. Take all food home, including the open sugar and the dog biscuits. Sealed tins are fine.
  2. Pull the toaster and kettle out and wipe underneath. Crumbs there feed cockroaches for months.
  3. Run water into every floor drain, shower and basin before you lock up. Pour a little cooking oil on top of the water in drains you won't use for a while; it slows evaporation so the water seal stays in place and blocks the way up from the drain.
  4. Leave the fridge door propped open if it's switched off, and dry. Damp seals are a favourite hiding place.

That drain tip is the one people miss most often in coastal holiday homes. When a drain trap dries out, there's nothing stopping American cockroaches walking straight up into the bathroom.

The mistake with bug bombs

Setting off an aerosol fogger before you lock up for the season feels like it should work. It mostly doesn't. Foggers settle on open surfaces, while cockroaches are tucked inside walls and appliances, and the spray can push them deeper into the house or next door. It also leaves residue on every counter you'll then have to wash. A targeted bait treatment does far more with far less product.

How much will it cost?

It depends on the size of the house, how many rooms are affected and how long the cockroaches have had to settle in. A kitchen with a few German cockroaches is a quick job. A house where they've spread into the bathrooms and roof void, or a property with outbuildings and a braai room, takes longer and may need a follow-up visit to check the bait has done its work. We'll give you a free quote before we start.

Honestly, if you've seen one big cockroach that wandered in from the garden on a hot night, you probably don't need us. Keep the drains sealed and the door sweeps in good shape. If you're seeing them regularly, or seeing small ones, that's a breeding population and worth treating.

Our cockroach treatments carry a 3-month guarantee, and we've worked across the Garden Route for more than 25 years. For other pests at the house, see pest control in Herolds Bay, or read more about cockroach control in George.

When you're ready, call us on 044 012 5011 and tell us what you've found. We'll talk you through the options.

Questions we get asked

Can you treat the house before we arrive for the holidays?

Yes, and it's often the best time. Treating a week or two before you arrive gives the gel bait time to work through the colony, so the kitchen is clear by the time you're cooking in it.

Will the gel bait attract more cockroaches into the house?

No. The bait only attracts cockroaches that are already close by. It's placed in tiny amounts in cracks and hinges where they're hiding, not out in the open.

Why am I seeing more cockroaches straight after the treatment?

That's normal for the first few days. The treatment flushes them out of their hiding spots, so you see them before they die. Activity should drop off clearly after that.

Is the treatment safe with a dog in the house?

Yes. The gel goes into places a dog can't reach, and the spray is safe for pets once it's dry. Keep pets out of treated rooms until then.

How do German cockroaches get into a house that's been empty?

Usually they were already there, in small numbers, or they came in with boxes, groceries or a secondhand appliance. They don't need to come from outside.