Marina da Gama is built around a network of canals off Zandvlei, with houses that back right onto the water and little jetties at the end of the garden. Living on the water is lovely, but it also means midges, mosquitoes and rats are part of the conversation.
Crawling insects around Marina da Gama
Spiders build webs on decks, jetties and window frames by the water. Fishmoths like the damp in cupboards near the canals.
Most homes are free-standing houses and townhouses from the 1970s onwards, many with timber decks, boathouses and jetties on the canals. The decks and boathouses give rats and spiders plenty of hiding spots. Tightly spaced houses mean a rodent problem next door can quickly become yours.
The canals connect to Zandvlei, a large estuary with reed beds and wetlands that open to False Bay. Warm, still water in summer is perfect for midges and mosquitoes. The South-Easter blows hard across the vlei, and winter storms can push the water level up.
Midges and mosquitoes are the main seasonal pests. Rats live along the canals and under decks. Spiders, fishmoths and ants are common inside homes near the water.
A note from the field
Landlords with older rental properties often get fishmoth complaints from tenants. A roof void treatment and better ventilation in the bathroom usually solves it for the long term.
When a technician deals with fishmoths, the first place they look is up. The roof space is often where the main population lives, out of sight, especially with the grey silverfish common in Cape Town.
Tell-tale signs
- Fishmoths drop from the ceiling or come out of light fittings and cornices, a sign they are living in the roof space.
- Silvery, fast-moving insects are seen when you lift boxes, books or linen.
- Irregular grazed patches or small holes appear on book covers, wallpaper or photographs.
- Yellowish stains or tiny pepper-like droppings are left on paper and shelves.
How the treatment works
Fishmoths often live in roof spaces, wall voids and behind cornices, so a fine insecticidal dust blown into the ceiling void is one of our most effective tools. Inside, we apply a targeted residual treatment into cracks, cupboard corners, skirting gaps and behind bookshelves rather than spraying open surfaces. Fishmoths are long-lived and lay eggs in hidden cracks, so treatments that keep working for a while are more useful than a quick knockdown. We pair the treatment with advice on damp, ventilation and storage, because changing the conditions is what stops them coming back.
- Confirm and identify
We confirm it is fishmoths and not booklice or another small insect, which need different handling.
- Find where they live
The technician checks the roof space, cupboards, bookshelves, bathrooms and stored boxes for the main population.
- Check for damp
We look for leaks, poor ventilation and damp walls, because fishmoths follow moisture.
- Treat voids and cracks
Dust goes into the roof space and voids, and residual products into cracks, skirtings and cupboard corners.
- Report and remedial advice
You get a post-treatment report covering what we treated and what to change in storage and ventilation.
Prevention that actually works
- Store books, documents and photographs in sealed plastic boxes, not cardboard, especially in garages and storerooms.
- Improve ventilation in bathrooms and laundries with an extractor fan or by keeping a window open after showers.
- Vacuum regularly inside cupboards, along skirting boards and behind furniture to remove eggs and food sources.
- Seal cracks around skirting boards, cornices and built-in cupboards where they hide and lay eggs.
- Avoid stacking old newspapers, magazines and cardboard boxes in cupboards for long periods.
How much will it cost?
The price depends on the size of the property, how many rooms and cupboards are affected, and whether the roof space needs to be treated. Easy access to the ceiling void keeps the job simpler, while a home with lots of built-in cupboards and shelves takes more time. Offices, archives and storerooms with large amounts of paper are quoted separately, and every quote is free.
Fishmoths are active all year because they live indoors, but Cape Town's damp winters make them more noticeable as moisture rises in roofs, walls and cupboards. Grey silverfish in the roof space may become more visible in summer when the ceiling heats up and pushes them down into the rooms below.
Fishmoth Control questions from Marina da Gama
Are there rats under my deck by the canal?
Quite possibly. The space under decks and jetties is dark and sheltered, close to water, so rats like it. We can inspect, bait safely and seal off access.
Why are fishmoths falling from my ceiling?
That usually means there is a population in the roof space. Treating the ceiling void with a dust is the most effective way to deal with it.
Do fishmoths bite?
No, they do not bite people or pets and do not carry disease. The problem is the damage they do to paper, books, photographs and fabrics.
Do you come out to Marina da Gama for fishmoth control?
Yes. Marina da Gama is part of our regular South Peninsula route, along with Muizenberg, Lakeside, Lavender Hill, Steenberg. Most bookings are done within about 48 hours, and after-hours visits can be arranged.
Can fishmoths damage clothes?
They can graze cotton, linen, silk and starched fabrics, particularly items stored for long periods in damp cupboards. They are less of a problem on synthetics.
Can you get rid of the midges in Marina da Gama?
Not completely, because they breed in Zandvlei itself, which we can't treat. We can reduce resting midges around your home and advise on lighting and screens to keep them out.
Office 021 012 5825 · WhatsApp us
