Have you noticed more cockroaches running across your kitchen floor lately?
You're not alone.
Over the past few weeks, many homeowners across Kuala Lumpur, Selangor and the Klang Valley have been reporting an increase in cockroach sightings. Coincidentally, Malaysia has also been experiencing frequent thunderstorms, heavy downpours and persistently humid weather, with MetMalaysia issuing repeated weather alerts across several states.
While the rain is a welcome relief from the heat, it also creates the perfect environment for one of the most unwanted household pests.
Cockroaches normally live inside drains, sewers, manholes, underground pipe systems and damp outdoor hiding places. When these areas become flooded after prolonged rain, they're forced to search for somewhere dry.
Unfortunately, that "somewhere" is often our homes.
That's why pest control companies in Malaysia tend to receive more enquiries after several consecutive days of rain. As outdoor hiding places become waterlogged, cockroaches migrate indoors through floor traps, drainage pipes, gaps under doors and tiny cracks around plumbing.
Recent weeks of wet weather have kept moisture levels consistently high, allowing cockroaches to survive longer and remain active even during the daytime.
When humidity combines with food scraps, overflowing rubbish bins or a leaking sink, you've created an environment that cockroaches find incredibly attractive.
Residents living in condominiums and apartments often wonder why cockroaches keep appearing despite maintaining a clean home.
The answer is simple. Cockroaches don't respect property boundaries.
One infested unit can affect an entire floor because these pests travel through shared drainage systems, ceiling voids, electrical conduits and plumbing pipes. Heavy rain accelerates this movement as cockroaches abandon flooded sewer systems and look for higher, drier shelter.
This explains why some families suddenly notice cockroaches even though they've never had a problem before.
Cockroaches spend most of their time inside narrow cracks behind cabinets, under refrigerators, inside electrical appliances and within wall voids. They're nocturnal, so by the time you spot one, the rest of the colony is already well established.
This is especially true for German cockroaches, one of the most common indoor species found in Malaysian homes and food premises. They reproduce rapidly, meaning a small problem can become a major infestation within a matter of weeks.
In some cases, repeated spraying simply causes cockroaches to scatter deeper into wall cavities or neighbouring rooms, making the infestation even harder to eliminate.
Professional pest control focuses on locating breeding areas, applying targeted gel baits, using residual treatments and monitoring activity over time. This approach tackles the source of the infestation rather than just the visible symptoms.
If you live in a high-rise building, remember that pest control is often most effective when neighbouring units and common areas are managed together.
At Sincerae Services, we don't just spray and leave. We identify where cockroaches are breeding, remove the root cause and recommend long-term prevention methods using Integrated Pest Management (IPM).
Because when it comes to cockroaches, getting rid of the ones you can see is only half the job. The rest are still hidden in your house.
Malaysia