Plattekloof sits high on the Tygerberg Hills above the N1, so most of our calls here are about pests coming in from the hillside rather than from neighbours. Big gardens, open veld on the ridge and a busy office node lower down give it a mix of household and commercial work.
Plattekloof: what drives timber pests here
Timber roof trusses in the older houses are worth an inspection for wood borer, especially before a sale when a beetle certificate is requested. Wooden decks and pergolas also attract borer over time.
Most homes are large, freestanding family houses from the 1970s onwards, with tiled roofs, double garages and a fair number of pools. There are also townhouse complexes and the office parks off Plattekloof Road. The bigger houses have plenty of roof void and garage storage, which is where rodents and cockroaches settle in unnoticed. Office blocks and their kitchens need regular scheduled checks rather than once-off sprays.
The suburb runs up the slopes of the Tygerberg Hills, with Tygerberg Nature Reserve and undeveloped veld not far off. Winters are wet and windy, summers hot and dry, and the ridge catches the full force of the South-Easter. That mix pushes insects and rodents indoors when the first cold fronts arrive.
What gives them away
- Birds pulling reed out of the roof or nesting under the eaves.
- Small round exit holes in the poles, especially in the paler sapwood.
- Insects such as cockroaches or spiders falling from the ceiling.
- Droppings on beams or along the top of walls under the thatch.
- Rustling or scratching in the roof at night.
Borer in the poles and laths weakens the timbers that carry the weight of the thatch, which is heavy, and serious damage can mean replacing structural members. Rodents nesting in thatch chew electrical cables, and in a thatch roof that is a fire risk to take seriously. Insects dropping from an open thatch ceiling are a nuisance in homes and a real problem in guest lodges and restaurants. Bird nests in thatch can bring mites into bedrooms below.
A note from the field
Borer damage in thatch is often blamed on the reed, but the reed is rarely the problem. It is the poles and laths holding it up that the beetles are after.
Our process, step by step
We start by inspecting the underside of the roof, the poles, the laths and the eaves, looking for borer exit holes, frass and rodent or bird activity. Affected poles and laths are treated with a borer spray or injection designed for timber, applied to the wood rather than soaked through the thatch. For insects living in the thatch, we use a targeted residual treatment on the underside, keeping it as light as will do the job. Rodents are handled with traps and tamper-resistant bait stations placed at wall plates and entry points, and we advise on bird netting or proofing at the eaves. Fire safety of the thatch itself, such as retardant treatment, is a separate specialist job and we will tell you if it looks overdue.
Want the full step-by-step? See how our thatch treatment service works.
Keeping them out afterwards
- Have electrical wiring in the roof inspected regularly, especially if you have had rodents.
- Ask your thatcher to check the poles and laths for borer whenever the roof is being repaired or re-combed.
- Fit bird netting or wire at the eaves if birds keep pulling reed or nesting there.
- Have open thatch ceilings in lapas and lodges checked once a year, since problems are easy to see early.
- Do not store firewood or boxes against the walls under the thatch, as they give insects and rodents cover.
Pricing, honestly
The price depends on the size of the roof, how much of the structure is exposed and how many poles and laths show borer activity. A small lapa with an open underside is a very different job from a double-storey home with a closed ceiling. Rodent and bird work is added where needed, and timber that is too damaged to treat has to be replaced by a builder or thatcher.
Adult borer beetles emerge mainly in the warmer months, so fresh powder and holes often appear from late spring into summer. Rodents move into thatch most during the wet Cape winters when it offers dry shelter. Treatment can be done at any time of year, though a dry day makes inspecting the roof easier.
Thatch Treatment questions from Plattekloof
Can you service the office parks in Plattekloof after hours?
Yes, after-hours and weekend visits can be arranged on request so staff are not disturbed. We leave a post-treatment report so building managers have a record.
Do you treat the thatch for fire?
No, fire retardant treatment is a specialist job for thatching contractors. We treat the pests in the roof and will point out if the thatch looks like it needs attention.
Why do I get more mice in Plattekloof when it starts raining?
The first cold fronts flush mice out of the veld on the hill and they head for warm roofs and garages. Proofing entry points in April and May usually stops the seasonal wave.
How do I know if the borer is still active?
Fresh, pale powder below the poles and clean-edged holes point to active borer. We can tell you on inspection, or send us a photo on WhatsApp first.
Can you treat a lapa or braai area?
Yes, lapas are often the easiest to treat because the whole structure is open underneath.
Do you come out to Plattekloof for thatch treatment?
Yes. Plattekloof is part of our regular Northern Suburbs route, along with Panorama, Parow, Monte Vista, Goodwood. Most bookings are done within about 48 hours, and after-hours visits can be arranged.
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