Woodworm Treatment Cost

Last updated 27th February, 2024

Wondering how to treat woodworm?

In this article you'll discover everything about wood worm treatment. We discuss types of wood worms, woodworm treatment spray, how to find a woodworm specialist and more!

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Cost to Treat Woodworm

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How Much Does Woodworm Treatment Cost?

Woodworm is the larvae of wood-boring beetles, of which there are several different species in the UK. But the most damage is caused by the Common Furniture beetle larvae.

The main damage caused by woodworm can be tricky to spot initially as this damage is inside the timber, so you are unlikely to see any visible damage for some time, possibly even years after infestation. However, there are some signs that can help to identify an infestation, the most obvious being small holes in your woodwork and fine dust around these holes.

Woodworm can be found on all wood surfaces including of course roof beams, floorboards and rafters, but also in furniture. The amount of damage caused by woodworm depends on the species, the size or duration of the infestation, and the timber that has been infested.

Some species of woodworm are not particularly harmful, whereas others can seriously weaken timber and cause structural damage. Identifying the woodworm species is definitely a job best left to a professional.

Most modern woodworm treatments involve using various chemicals that can effectively kill wood eating insects of all types. These woodworm killers can be used on furniture, floorboards, structural timbers and roof rafters, they are easily absorbed deep into the wood offering good penetration.

Modern chemicals for woodworm treatment are mostly odourless and can be simply applied using a brush or a low-pressure sprayer to treat the wood and offer long-lasting protection.

Once you have discovered and identified woodworm in your home, you should not only treat this current infestation, you should also take steps to avoid future problems. Wood devouring insects have difficulty penetrating wood that is well painted or varnished, so if you know for sure that the timber is currently unaffected, you should start painting and/or varnishing all other wood in the property to prevent further infestation problems.

Although it can be difficult to completely prevent woodworm, you can definitely make things more difficult for them by keeping your home warm and well ventilated, keeping all wood dry and replacing any infected timbers as soon as possible. If you think you may have an infestation, it's really important to make sure you correctly identify the type you are dealing with.

Although woodworm can be treated as a DIY Project, it is essential to contact a specialist in the first instance to correctly identify the type of woodworm you are dealing with. Then if the woodworm only affects small non-structural items you can easily treat it yourself using "over the counter" woodworm treatment.

These treatments are available in brush or spray applications and should be used on any timbers you suspect may be affected by woodworm. But remember that with death watch beetle infestations these can be deep within a timber so it is important to use injection as well as surface treatments. This can actually be done without drilling holes simply by injecting into the small holes left by the adult beetles.

But for more serious cases, you can drill into the affected zones and fill the wood with the woodworm treatment. If you suspect that you might have a longhorn woodworm infestation then all timber within the home needs to be inspected for structural integrity and a free from severe damage can then be treated with over the counter woodworm killer.

It is vitally important that you deal completely with any woodworm infestation at the time. As if any affected timber is left untreated, then you are simply wasting your time and money. Woodworm is not actually caused by damp but damp does cause woodworm to thrive, so you should always keep your house warm and dry, monitoring the levels of damp using a timber moisture meter after you have treated any infestation.

Failure to completely deal with a woodworm problem by cutting corners will end up costing you much more in the long run. A common mistake is to simply brush on an over the counter treatment on the areas which are visibly affected by woodworm. You should always consult an expert to identify both the type and extent of the infestation, removing severely damaged timbers and carefully treating everything else - half measured are no good!

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Woodworm Treatment Prices

The average material cost will vary depending on the woodworm treatment you buy. Prices start from £5 to £20 depending on how much you need and can easily be picked up from a local DIY shop or online.

The average specialist will usually charge around £100-£150 per day depending on location. Depending on the severity of the woodworm, the specialist should not take more than a few hours to treat the woodworm, but may have to continously treat the affected areas to ensure the woodworm is eradicated.

Below are some estimated costs of hiring a specialist to treat woodworm:

Job Description Avg. Cost Duration
Treat your home for all stages of woodworm £500-£800 1-3 days
Woodworm survey £80-£200 2-4 hours
Treat furniture for woodworm £70-£150 1 day

Cost Breakdown

Individual costs to treat your home for all stages of woodworm - Total Cost: £500






Waste Removal


No, woodworm is simply the name for the larvae stage of various wood-boring beetles. This type of beetle can target any home with exposed and untreated timber and most homes will be affected by woodworm at some point to some extent. But in the early stages, these pests are very small so you may not notice them for some time, however, woodworm is a very common problem for UK homeowners.
Yes, there are many different types but in the UK there are just four main species: the Common Furniture Beetle the House Longhorn Beetle, the Wood Boring Weevil and the Death Watch Beetle.
The insects all look slightly different but for example, the common furniture beetle measures around 2-5mm and they have brown bodies. But in the early stages, the tiny eggs and the larva are easily missed by the human eye. When the larva increase in size they are known as Pupa and are bigger and easier to spot. Once the beetle is in adult form and can be easily spotted, it does not feed anymore and simply reproduces.
They spend up to 4 years beneath the surface of the timber eating their way through the wood and slowly increasing in size. So by the time you notice them, much of the damage has already been done!
The first visible signs are small holes in the timber and dust near the holes in the timber. The longer you have a woodworm infestation, the worse it will become so it should always be treated as soon as possible.
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