Brisbane's humidity and warm winters mean cockroaches are a year round problem, not just a summer one. German cockroaches in the kitchen, American cockroaches through drains and roof voids. Both require a different treatment approach to actually fix the problem.
Correct identification is the first step to effective treatment. These two species behave differently, live in different areas and respond to different treatment approaches. Getting the species wrong means getting the treatment wrong.
Blattella germanica, 10–15mm, pale brown with two dark stripes behind the head
The German cockroach is the species most likely causing problems inside your kitchen or bathroom. It is smaller than the American cockroach, prefers warm, humid conditions close to food and water sources, and is almost always found indoors. It does not fly under normal conditions.
What makes it difficult to eliminate is its breeding rate. A single female can produce hundreds of offspring in a few months. Standard spray treatments will kill the cockroaches you can see but leave the breeding population intact in harbourage areas behind benchtops, inside appliances and beneath sinks.
Periplaneta americana, 35–45mm, reddish brown, also called the Palmetto bug
The American cockroach is considerably larger than the German cockroach and typically enters from outside, coming up through drains, around pipework penetrations, through subfloor vents and into roof voids. It prefers damp, dark spaces and is less dependent on indoor food sources.
Because it spends most of its time in roof voids, under the property and in garden areas rather than indoors, treatment needs to address those external zones as well as the interior. A spray only approach targeting internal areas will see continued entries if the roof void and perimeter are not treated.
Most cockroach infestations that have persisted despite DIY sprays share the same root cause: the treatment was applied where the cockroaches are visible, not where they live and breed. Our approach starts with a thorough inspection to identify which species are present, where harbourage areas are located and how severe the infestation is.
For German cockroaches, gel bait is applied precisely into harbourage areas: behind the stove, inside hinges and corners, beneath the dishwasher, inside cupboard voids. Cockroaches consume the bait, return to the harbourage and the effect spreads through the population. Spray alone will not reach these areas effectively and can actually cause bait aversion if products interact.
For American cockroaches, treatment combines an internal spray with roof void treatment and external perimeter coverage. This addresses the areas the cockroach spends most of its time and reduces the pressure of ongoing entry.
You do not need to empty every cupboard. We will advise you specifically on what preparation is needed based on your situation when you book. For gel bait applications, keeping food sources away from application areas for 24 hours helps improve bait uptake.
General cockroach treatments for American, Australian, and Oriental cockroaches include a 12-month internal warranty. If cockroach activity returns inside the property within 12 months, we come back and re-treat at no charge.
German cockroach treatments do not include a 12-month warranty. German cockroach infestations can require multiple follow-up visits depending on the severity of infestation and how long the population has been established. We will be upfront about expected outcomes and any follow-up requirements when we assess your situation.
The warranty applies to internal areas of the property. It does not cover activity in outdoor areas, gardens, or unenclosed spaces. It remains valid provided the property has not undergone major changes after treatment such as renovation work or flooding.
From homeowners across Brisbane and the Sunshine Coast.
"Would highly recommend Sunnystate! Great price, great communication and excellent professional service. Noticed an immediate impact — pesky flies have gone and not a cockroach in sight. Will definitely use again!"
"Great response and service. Joel was able to attend and fix our pest problem in no time. Thanks again."
"Great service: lots of pre and post visit information given. On time too! Very nice and polite operator."
"It was great to ring someone who was very nice and polite. A big thank you, hope you keep up the good work."
"Highly recommend Sunnystate. We had Joel attend our property and he was friendly, professional, thorough in the works he carried out and provided a detailed report. An easy 5 star review."
"Sunnystate always provide exceptional service, great communication, punctual, they use quality and effective chemicals that are pet and kid safe."
"The whole process was seamless. Amie responded promptly and Joel was very professional and friendly. Communication is outstanding."
"Would highly recommend Sunnystate! Great price, great communication and excellent professional service. Noticed an immediate impact — pesky flies have gone and not a cockroach in sight. Will definitely use again!"
"Great response and service. Joel was able to attend and fix our pest problem in no time. Thanks again."
"Great service: lots of pre and post visit information given. On time too! Very nice and polite operator."
"It was great to ring someone who was very nice and polite. A big thank you, hope you keep up the good work."
"Highly recommend Sunnystate. We had Joel attend our property and he was friendly, professional, thorough in the works he carried out and provided a detailed report. An easy 5 star review."
"Sunnystate always provide exceptional service, great communication, punctual, they use quality and effective chemicals that are pet and kid safe."
"The whole process was seamless. Amie responded promptly and Joel was very professional and friendly. Communication is outstanding."
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