Photo by Paul Engel on Unsplash.
Of all the questions I get on a call-out, “what’s this going to cost me” comes up almost as often as “do I have wood borer.” Fair question. But wood borer isn’t like a standard cockroach or ant call-out, where I can throw you a number over the phone and be roughly right. I have more than 30 years of hands-on experience as a trusted Durban exterminator, and this guide reflects what I see on real call-outs.
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At a glance
- There’s no fixed price for wood borer treatment. The cost only becomes clear after an inspection.
- What the inspection finds is what moves the price.
- Elsewhere in South Africa, these treatments are commonly quoted from around R20 per square metre of roof space.
- A beetle certificate or entomologist report is usually a separate line item.
- These prices assume it’s still a timber problem. Left alone, it can become a roof problem.
Why There’s No Fixed Price for Wood Borer Treatment
With most household pests, one visit tells you almost everything. Wood borer doesn’t work that way.
The larvae do their damage inside the timber, out of sight, for years before an adult beetle ever chews its way out.
So the exit holes and dust you can see aren’t a reliable guide to how much timber underneath has been affected, or how far it’s spread through a roof void. I need to get up there and look before I can put a number on it, not the other way around.
Anyone who quotes you a firm price before setting foot on your property is guessing.
What Drives the Cost
Once I’ve done that inspection, a handful of things move the price.
Treatment method. A localised drill-and-inject on a few affected beams costs a fraction of fumigating an entire roof void.
Size and accessibility. A large roof takes longer to treat than a small one, and a boarded ceiling with no existing access hatch often means cutting a panel before we can even get up there.
How far it’s spread. Treating a handful of affected trusses is a different job to treating a whole roof structure that’s had years to develop. That gap is the main risk of leaving wood borer untreated.
What’s being treated. A single piece of furniture is a much smaller job than structural roof timber, and the two aren’t priced the same way.
Whether a certificate’s involved. If you need a beetle certificate alongside treatment, usually because you’re selling, that’s also worth mentioning upfront.
A Realistic Range (And Why Cheap Quotes Worry Me)
As a general benchmark, wood-destroying insect treatments elsewhere in South Africa are commonly quoted from around R20 per square metre of roof space upward, with household pest jobs generally landing somewhere between R750 and R4,000 depending on severity and property size. Wood borer usually sits toward the higher end of that, since it involves more roof access and a more thorough treatment than a standard call-out.
Durban adds its own factor on top. Our humidity means infestations here often have a head start on drier inland regions, and older homes in areas like Berea, Morningside, and Glenwood are still carrying original timber roof trusses that have had decades to accumulate damage.
This is exactly why an unusually cheap quote should worry you more than it reassures you. A price that undercuts everyone else is cutting something, and treated badly, wood borer just means paying for it twice: once now, and again when the real infestation resurfaces.
Before you accept any quote, wood borer or otherwise, make sure it spells out:
- The treatment method being used, not just “wood borer treatment” as a vague line item
- A written certificate, if that’s part of what you’ve asked for
- What the treatment covers, and how long it’s expected to protect the timber
- The technician’s registration number, so you can check they’re licensed to do this work
If a quote is missing any of that, ask. A proper operator won’t mind explaining it. And if you already have a proper quote from another company, send it through and we’ll beat it.
Already had a quote that felt too good to be true? Worth getting a second opinion before you sign anything. See how our Wood Borer Treatment works.
Where a Certificate Fits Into the Price
If you’re buying, selling, or just want a documented record for yourself, an entomologist report or beetle certificate is usually a separate line item from the treatment itself. It involves its own inspection and its own paperwork.
If you already know a sale’s coming up, mention that when you book, so treatment and certification can be scheduled together rather than as two separate visits. Our Selling Your Home page covers this in more detail if that’s what’s brought you here.
Wood Borer Treatment Cost: The Short Answer
Every price I’ve talked about here is for treating wood borer while it’s still just a timber problem.
Left long enough, particularly in a roof truss, that timber problem becomes a structural one, and then you’re not comparing pest control quotes anymore, you’re comparing roofing quotes. That’s a different order of expense entirely, and I’ve gone into exactly how that risk builds in Wood Borer in Your Roof, if that’s the part that worries you most.
If you want an actual number instead of a range, send me a few photos of what you’re seeing, or give us a call and we’ll get someone out to have a proper look.
Thank you, and God bless.
Mark Abraham
Registered Pest Control Operator · Reg. No. P54412 · Structural Pest Control (Commercial & Domestic), Dept. of Agriculture, Act 36 of 1947
Frequently Asked Questions About Wood Borer Treatment Costs
How much does wood borer treatment cost in Durban?
It depends on the treatment method, the size and accessibility of the affected area, and how far the infestation has spread. As a general guide, expect it to sit above standard pest treatments (which often start around R750 to R1,200) since wood borer usually needs roof access and a more thorough application. We only give an exact figure once we have inspected the property.
Why won’t you give me a price over the phone?
Because the visible exit holes and dust never tell the full story. The larvae causing the damage are inside the timber, and the only way to know how far that’s spread is to look, usually inside the roof void.
Does the price include a beetle certificate?
Not automatically. Treatment and certification are usually priced separately since they involve different work. If you know you’ll need a certificate, mention it when booking so we can plan both in one visit.
Is a cheaper quote ever worth taking?
Rarely. An unusually low price is often a sign of a surface-only treatment, no written certificate, or a vague scope of work, and none of those solves the problem. Ask what’s included before you compare on price alone.
Does treating furniture cost the same as treating a roof?
No. Treating a single piece of furniture is a much smaller job than treating structural roof timber, and the two are quoted differently.
Will I need to pay for treatment again in a few years?
Properly treated timber with a valid certificate stays protected for a good number of years. Keeping roof voids ventilated and dealing with any moisture issues helps prevent a repeat infestation.
