Sun Valley is a family suburb tucked in the valley between Fish Hoek and Noordhoek, with mountains close on both sides. Homes back onto fynbos, green belts and wetland, so a lot of the pests we see here walk in from the bush rather than from neighbours.
Sun Valley: what drives crawling insects here
Crickets, garden spiders and rain spiders are frequent visitors, and scorpions turn up under rocks and stacked wood. Argentine ants trail indoors as soon as the weather turns.
The area is mostly freestanding homes from the eighties and nineties, plus newer townhouse complexes and a few security estates. Plenty of houses have big gardens, pool pumps, wooden decks and garden sheds, all of which give rodents and spiders somewhere to hide. Some homes have timber ceilings and exposed beams that need watching for borer.
Worth knowing
People often kill rain spiders on sight, but they rarely bite and they eat cockroaches. If one wanders in, a container and a piece of cardboard will get it outside without any fuss.
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.
Signs to look for
- You keep finding small pale spiders in bedding, curtains or clothing that has been left folded.
- Fresh webs reappear in the same corners, window frames and eaves within days of being brushed down.
- Outside lights draw a cloud of moths and midges each night with webs built right around them.
- Cast skins and dead insects collect along skirting boards and in the backs of cupboards.
- Someone in the house wakes with a small, red, sometimes blistered bite that was not there the night before.
How the treatment works
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
- Shake out shoes, gardening gloves and clothes that have been left on the floor or in the garage before you put them on.
- Brush down webs regularly and vacuum the corners and the backs of cupboards, which gets rid of egg sacs before they hatch.
- Pull beds slightly away from the wall and keep bedding off the floor to reduce night-time bites from sac spiders.
- Swap white outdoor bulbs for warm yellow or LED ones so fewer insects gather, which means fewer spiders setting up around your doors.
- Fit fine mesh to vents and seal the gaps around pipes and under doors with sealant or brush strips.
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 Sun Valley
Are scorpions in Sun Valley dangerous?
Most scorpions found here are mild, but some thick-tailed species can give a painful sting, so treat any sting with caution and get medical advice if symptoms are severe. We can reduce numbers around your home by clearing harbourage and treating hiding spots.
Do the rats in Sun Valley come from the mountain or from neighbours?
Mostly from the green belts and wetland edges, especially after the first winter rains. Sealing roof and garage gaps on the bush-facing side of your home makes the biggest difference.
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.
Is the rain spider in my house dangerous?
Not really. Rain spiders are big and fast but rarely bite, and the bite is painful rather than dangerous; the kindest option is to catch it under a container and put it outside.
Do you come out to Sun Valley for spider control?
Yes. Sun Valley is part of our regular South Peninsula route, along with Sunnydale, Fish Hoek, Noordhoek, Masiphumelele. Most bookings are done within about 48 hours, and after-hours visits can be arranged.
Why do I have so many spiders this year?
Usually because there is more for them to eat. A warm spell, a lot of outdoor lighting or an underlying insect problem will bring spiders in behind it.
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