American cockroaches are the big ones. They grow up to 4 cm long, are reddish brown, and can fly short distances on warm nights. Around Chermside, they live mostly outdoors in drains, sewer pits, mulch, leaf litter, sub-floor spaces and roof voids, then wander inside looking for food, water or shelter.
Because they breed outside and in the roof, spraying only the room where you saw one does not solve much. The crew we book looks at the whole property to find where they are coming from. They check drain grates, downpipes, gaps around pipes and cables, weep holes in brick walls, the gap under doors, and the roof space above the kitchen and bathrooms. Homes with a timber sub-floor or a built-in lower level often need extra attention underneath.
A typical American cockroach treatment includes:
- Dust applied in the roof void and wall cavities where they harbour
- A residual spray band around outside walls, doors and windows
- Treatment of drain openings, pits and garden edges
- Gel bait inside where you have seen activity
- Advice on sealing gaps and fitting drain covers
These cockroaches are most active from spring through to autumn, and many people in Chermside see a jump after summer storms, when water pushes them up out of drains. Booking a treatment before the wet season can help keep them outside. Clearing leaf litter and trimming plants back from the walls also helps. Once the outside barrier is in place, you may still see the odd one for a week or so, often slow or lying on its back. That is a sign the treatment is working. Call 07 3543 7772 for upfront pricing and a booking with a local crew.
