Bishopscourt is a very green suburb of large homes, ambassadors' residences and old trees right beside Kirstenbosch. Pest work here is often about big properties with outbuildings, staff quarters, pools and heavy garden growth, rather than anything to do with density.
Timber pests in Bishopscourt: what we see
Thatch, timber decks and old roof timbers can host wood borer and other beetles. Beetle certificates are standard on sales, and regular inspections are wise for thatched structures.
Homes are large, many on double plots, with thatched lapas, timber decks, wine cellars and staff cottages. All that space means plenty of ceilings, outbuildings and garages for rodents to hide in. Thatch and exposed timber also bring timber pest concerns.
Bishopscourt sits on the slopes below Table Mountain, with Kirstenbosch and the national park right next door. The Liesbeek River starts nearby, and winter rain keeps everything wet and lush. Big oaks, pines and fruit trees feed rodents and squirrels.
What gives them away
- Fine powder dropping from the poles or laths onto floors and furniture below.
- Rustling or scratching in the roof at night.
- Droppings on beams or along the top of walls under the thatch.
- Tunnels or loose patches in the thatch where rodents have been moving.
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.
Worth knowing
A technician looking at a thatch roof checks the wall plates first. That is where rodents get in and where they nest, warm and dry, against the top of the wall.
How we handle thatch treatment in Bishopscourt
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.
- Roof inspection
We look at the underside of the thatch, every accessible pole and lath, and the eaves and ridge.
- Identify the problem
We separate active borer from old damage and confirm which insects, rodents or birds are involved.
- Timber treatment
Affected poles and laths are treated with borer spray or injection.
- Thatch and pest treatment
Insects in the thatch are treated from below and rodent stations or traps are placed.
- Report and recommendations
You get a report noting what was treated and any timber that a thatcher or builder should replace.
Prevention that actually works
- Do not store firewood or boxes against the walls under the thatch, as they give insects and rodents cover.
- Keep trees and creepers trimmed back from the thatch so rodents cannot step straight onto the roof.
- Have open thatch ceilings in lapas and lodges checked once a year, since problems are easy to see early.
- 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.
What affects the price
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.
Questions we get asked in Bishopscourt
Should I worry about borer in my Bishopscourt thatch lapa?
It is worth checking, because thatch and timber in shady, damp spots can attract wood-boring beetles. A yearly inspection catches problems early and keeps the structure sound.
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.
Do the trees near Kirstenbosch bring squirrels into Bishopscourt roofs?
Yes, grey squirrels and roof rats use the tall trees as highways onto roofs. We trim access routes, seal gaps and treat roofs where needed.
Do you come out to Bishopscourt for thatch treatment?
Yes. Bishopscourt is part of our regular Southern Suburbs route, along with Newlands, Claremont, Constantia, Kenilworth. Most bookings are done within about 48 hours, and after-hours visits can be arranged.
Is there a guarantee?
Our treatments carry a minimum 3-month guarantee, and the report records exactly what was treated.
Can you treat a lapa or braai area?
Yes, lapas are often the easiest to treat because the whole structure is open underneath.
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