Mamre is an old Moravian mission village north of Atlantis, surrounded by open farmland and West Coast veld. Life here is quieter and more rural than the city, and the pests follow suit: field mice, crickets and grain pests more than city rats.
The local picture in Mamre
The thatched roofs and old timber in the mission buildings and older homes are at risk from wood borer and thatch beetles. Regular inspections help protect these heritage structures.
At its heart are the historic mission buildings with whitewashed walls and thatched roofs, and around them are family homes, newer subsidised housing and smallholdings. Thatch and old timber need regular checks for borer and nesting rodents. Outbuildings, sheds and chicken coops on bigger plots attract mice and rats.
Mamre is ringed by wheat fields, grazing land and sandy West Coast scrub. Summers are hot and dry with strong winds, and winters bring most of the year's rain. Harvest time and the first cold fronts push field mice from the farmland into homes.
Mice and rats from the surrounding farmland are the main concern, especially in autumn and winter. Flies are common in summer near livestock. Ants, crickets and scorpions come in from the dry veld.
Tell-tale signs
- Droppings on beams or along the top of walls under the thatch.
- Fine powder dropping from the poles or laths onto floors and furniture below.
- Tunnels or loose patches in the thatch where rodents have been moving.
- Small round exit holes in the poles, especially in the paler sapwood.
- Rustling or scratching in the roof at night.
- Insects such as cockroaches or spiders falling from the ceiling.
From the technician
Cables running through thatch should be in conduit. Rodent damage to a bare cable in a thatch roof is a fire risk that is easy to prevent.
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.
- 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.
Stopping a repeat visit
- 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.
- Do not store firewood or boxes against the walls under the thatch, as they give insects and rodents cover.
- Ask your thatcher to check the poles and laths for borer whenever the roof is being repaired or re-combed.
- Keep trees and creepers trimmed back from the thatch so rodents cannot step straight onto the roof.
How much will it cost?
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 Mamre
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 we get so many mice in Mamre in autumn?
When the surrounding wheat fields are harvested and the weather cools, mice lose their cover and food and move into homes and sheds. Sealing gaps before the season starts makes a real difference.
Can you treat borer in a thatched roof?
Yes, we inspect thatch and roof timbers for beetle activity and treat it with methods suited to thatch. Older mission-era roofs especially benefit from a regular check.
Do I need to move out?
Usually not. We will tell you which rooms to keep clear during treatment and for how long.
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 Mamre for thatch treatment?
Yes. Mamre is part of our regular Blaauwberg & West Coast route, along with Atlantis, Melkbosstrand, Bloubergstrand. Most bookings are done within about 48 hours, and after-hours visits can be arranged.
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