The Bo-Kaap climbs up the slopes of Signal Hill above the city centre, with brightly painted houses, cobbled streets and the oldest mosque in South Africa on Dorp Street. Homes here are packed close together and often very old, so pests like rats, cockroaches and pigeons move easily from one roof to the next.
Bo-Kaap: what drives crawling insects here
Fishmoths are a classic Bo-Kaap complaint because the thick old walls hold damp through winter. German cockroaches thrive in older kitchens and in the cafés and guest houses that have opened in recent years.
Most homes are flat-roofed terraced houses from the 18th and 19th centuries, many with thick walls, old timber beams and small backyards. Flat roofs and parapet walls give pigeons places to roost and nest. Shared walls and old drainage pipes let cockroaches and rodents travel between neighbours.
Rats from the CBD and old drains are a major issue. German cockroaches are common in older kitchens and in the growing number of guest houses and cafés. Pigeons on flat roofs and fishmoths in damp walls are frequent complaints.
How to tell you have a problem
- Outside lights draw a cloud of moths and midges each night with webs built right around them.
- Egg sacs, often round and papery or spiky in the case of the brown button spider, are stuck to brickwork or furniture.
- You keep finding small pale spiders in bedding, curtains or clothing that has been left folded.
- Untidy, tangled webs show up under outdoor chairs, in the meter box or around the pool pump.
- Fresh webs reappear in the same corners, window frames and eaves within days of being brushed down.
- Someone in the house wakes with a small, red, sometimes blistered bite that was not there the night before.
From the technician
Spraying the skirting boards in every room is usually a waste. Spiders spend the day in voids, roof spaces and behind fitted units, so that is where the treatment needs to go.
Brown button spiders have spread widely across Cape Town gardens and leave distinctive spiky round egg sacs. If you see those under garden furniture or a jungle gym, get them removed before children are playing there again.
What happens when we come out
We start by identifying the species, because a rain spider on the wall and a nest of button spiders by the jungle gym call for very different responses. Webs and egg sacs are removed by hand or vacuum first, which takes out a surprising amount of the next generation. We then apply a residual spray or a fine insecticide dust into the places spiders actually live: roof voids, behind fitted units, wall cavities, garages, eaves and window reveals, keeping it away from where children and pets play. Where insects are drawing the spiders in, we treat or advise on that food source too, because spiders follow their prey. Finally we point out gaps around doors, vents and pipes that need sealing.
Want the full step-by-step? See how our spider control service works.
Keeping them out afterwards
- Keep stacked wood, bricks and old pots away from the house walls, because these are prime spots for button spiders.
- Shake out shoes, gardening gloves and clothes that have been left on the floor or in the garage before you put them on.
- Pull beds slightly away from the wall and keep bedding off the floor to reduce night-time bites from sac spiders.
- Fit fine mesh to vents and seal the gaps around pipes and under doors with sealant or brush strips.
- Swap white outdoor bulbs for warm yellow or LED ones so fewer insects gather, which means fewer spiders setting up around your doors.
How much will it cost?
The cost depends mainly on the size of the property and how many outbuildings, garages and roof spaces need treatment. A house with a heavy insect problem feeding the spiders takes more work than one with a few webs in the corners. We give a free quote after a quick look or a WhatsApp photo, and contract clients get spiders covered as part of their routine visits.
Spider activity climbs from late spring and peaks in the hot, dry months from January to March, which is exactly when rain spiders come indoors and people start to notice them. Button spiders are most visible in summer around gardens and pools. In the wet winter months many spiders retreat into roof spaces and garages, so a treatment then catches them where they shelter.
Spider Control questions from Bo-Kaap
What should I do if someone is bitten?
Clean the bite, keep the spider if you can safely do so for identification, and see a doctor, especially for a suspected button or violin spider bite. Do not rely on a pest controller for medical advice.
How long does a spider treatment last?
A residual treatment keeps working for a good while, and our treatments carry a minimum 3-month guarantee. New spiders can still wander in from the garden, which is why sealing gaps and fixing outdoor lighting matters.
Why do pigeons like Bo-Kaap flat roofs so much?
The parapet walls and flat roofs give them sheltered ledges to roost and nest. Netting or spikes on parapets, plus clearing nests, usually move them on.
Are Bo-Kaap's old houses more prone to wood borer?
They can be, because many still have original timber beams and floors. A proper inspection will show whether the beetles are active and what treatment is safe for heritage timber.
Will the treatment harm my pets?
We treat cracks, voids and roof spaces rather than open floors, and we ask that pets are kept out until surfaces are dry. We will explain any specific precautions on the day.
Do you come out to Bo-Kaap for spider control?
Yes. Bo-Kaap is part of our regular City Bowl & Atlantic Seaboard route, along with Malay Quarter, Schotsche Kloof, De Waterkant, City Bowl. Most bookings are done within about 48 hours, and after-hours visits can be arranged.
Office 021 012 5825 · WhatsApp us
