Thatch Treatment De Waterkant

De Waterkant is tiny, steep and packed: painted cottages, cobbled lanes, restaurants and a lot of short-term rentals. Pest work here revolves around kitchens, guest turnover and the old drains under the streets.

The local picture in De Waterkant

Old cottages may still have original timber floors and ceilings, and some show borer when they come up for sale and need a beetle certificate. Exposed beams in renovated homes are worth inspecting before you buy.

The core is a cluster of restored old cottages and terraced houses, many now guesthouses or holiday flats, alongside newer apartment blocks and the Cape Quarter shops. Shared walls and linked roof spaces let rodents and cockroaches travel from unit to unit without ever going outside. Conversions often leave hidden voids behind kitchen fittings. Restaurants on the ground floor with flats above are a common setup.

The suburb sits on the lower slope of Signal Hill, at the edge of the city centre and a short walk from the harbour. In summer the South-Easter funnels down the streets and packs litter into corners and gutters. Winter rain rushes down the slope into old stormwater lines, which is when rats move indoors.

How to tell you have a problem

1. Insects such as cockroaches or spiders falling from the ceiling.
2. Rustling or scratching in the roof at night.
3. Small round exit holes in the poles, especially in the paler sapwood.
4. Fine powder dropping from the poles or laths onto floors and furniture below.
5. Birds pulling reed out of the roof or nesting under the eaves.

Worth knowing

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.

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.

How we handle thatch treatment in De Waterkant

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.

Stopping a repeat visit

• 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.
• 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.

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.

Questions we get asked in De Waterkant

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