Wood Borer Treatment in the City Bowl

The City Bowl is the CBD and the older residential suburbs packed into the bowl formed by Table Mountain, Devil's Peak, Lion's Head and Signal Hill. Pest work here is a mix of restaurant and office contracts in town and older homes and flats up the slopes, with rats tying the two together.

Wood Borer Treatment by suburb

We cover all 26 suburbs on our City Bowl & Atlantic Seaboard route. Each suburb page covers what we find there and what works for those streets and buildings.

• Bantry BayWood Borer Treatment
• Bo-KaapWood Borer Treatment
• Camps BayWood Borer Treatment
• CliftonWood Borer Treatment
• De WaterkantWood Borer Treatment
• ForeshoreWood Borer Treatment
• FresnayeWood Borer Treatment
• GardensWood Borer Treatment
• Green PointWood Borer Treatment
• HiggovaleWood Borer Treatment
• Hout BayWood Borer Treatment
• Imizamo YethuWood Borer Treatment
• LlandudnoWood Borer Treatment
• Malay QuarterWood Borer Treatment
• Mouille PointWood Borer Treatment
• OranjezichtWood Borer Treatment
• Schotsche KloofWood Borer Treatment
• Sea PointWood Borer Treatment
• TamboerskloofWood Borer Treatment
• Three Anchor BayWood Borer Treatment
• University EstateWood Borer Treatment
• Upper WoodstockWood Borer Treatment
• VredehoekWood Borer Treatment
• Walmer EstateWood Borer Treatment
• WoodstockWood Borer Treatment
• ZonnebloemWood Borer Treatment

Timber pests around City Bowl

Victorian and Edwardian houses in the bowl often have Oregon pine floors and old roof timbers with past borer damage. An inspection tells you if it is still active, and a beetle certificate is a normal part of transfer.

In the CBD you have office towers, heritage buildings, hotels and hundreds of restaurants and cafés. Up the slopes are Victorian and Edwardian semis with wooden floors and corrugated iron roofs, along with newer apartment blocks. Old buildings have gaps, voids and old drains that rodents and cockroaches use, while flats share ducts and refuse rooms.

The mountain rises right behind the suburbs, with the Company's Garden and the slopes of Table Mountain National Park providing green corridors. Winter rain runs hard down the slopes, and the South-Easter brings the famous tablecloth and blows litter around the streets. The heat traps in the bowl on still summer days.

A note from the field

When we go into a roof, the first thing we look at is the condition of the wall plates and the bottom of the trusses, because damp spots there attract borer.

What gives them away

1. Small round or oval exit holes in timber, furniture or floorboards.
2. Timber that breaks easily and shows a network of tunnels inside.
3. Fine powder, called frass, building up under wooden items or on the floor below roof timbers.
4. Floorboards that feel soft or crumble at the edges when you press on them.
5. Faint scratching or ticking sounds from roof timbers on quiet nights.

Most borer damage is slow, but it is cumulative, and a roof truss weakened by years of tunnelling can fail under load. The European house borer is the serious one, because it goes for structural timber and is a notifiable pest. Furniture and antiques lose value quickly once borer has hollowed them out. When you sell a property in the Western Cape, an active infestation can hold up the transfer until it is treated and certified.

How the treatment works

We start with an inspection to confirm the beetle species and whether the holes are active or old, because old damage does not need treating. Exposed timber such as roof trusses, beams and floor joists is treated with a residual borer spray that penetrates the surface and kills emerging beetles and young larvae. Where the wood is thick or the infestation is deep, we inject product directly into the flight holes and drilled galleries. Badly weakened timber should be replaced by a builder, and we tell you which pieces are past saving. Valuable furniture can be sealed and fumigated instead.

Want the full step-by-step? See how our wood borer treatment service works.

Keeping them out afterwards

• If you are buying or selling, book the beetle inspection early so it does not delay the transfer.
• Use treated timber for any roofing, decking or building work, and check the treatment marks on it.
• Check second-hand furniture for holes and fresh powder before you bring it home.
• Have the roof timbers looked at every few years in an older house.
• Seal or varnish bare wood surfaces, because beetles prefer to lay eggs in rough, untreated grain.

How much will it cost?

The price depends on how much timber needs treating, how easy the roof space is to get into and which beetle we are dealing with. A single piece of furniture is a very different job to a full roof of trusses. Injection work, replacement advice and certificates for transfers are all included in a free quote once we have seen the property.

You can brush a borer product onto a small piece of furniture yourself and it may do the job. Roof timbers are a different story: getting the product into every face of every truss in a hot, cramped roof is hard work, and missing the European house borer is a real problem. I would always get the roof looked at professionally.

Questions we get asked in City Bowl

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