Woodworm Killer

Price incl. VAT
(Out of stock)

Lignum Woodworm Killer penetrates deep into timber in order to eliminate active infestation of wood boring insect at all life-cycle stages including woodworm. It will also offer long-lasting protection against re-infestation. The ready-to-use insecticide is ideal for DIY or professional use. It can be used as a curative or a preventative measure to treat internal woodwork including unpainted doors, frames, roof timbers, floorboards, joists, rafters. wooden panels and furniture.

How to use Woodworm Killer

  • Open up and make accessible as much timber surface as is practical; e.g. lift some floorboards to gain access to both top and bottom surfaces of timber floors and to flooring joists.
  • Ensure wood surfaces are clean and free from wood dust and other contaminants
  • Apply to all accessible surfaces of the timbers at the applicable coverage rates using either brush or low-pressure spray unit to exterminate woodworm and provide lasting protection from further infestation,

Coverage for treating woodworm:

Use 1L to treat a surface area of 3.3m2 (300ml/m2). One 5L tin will treat 16.5m2 of infested timber

Coverage for protecting non-infested timbers:

Use 1L treat a surface area of 5.0m2 (200ml/m2). One 5L tin will protect 25m2 of non-infested timber.


  • Drying: Subject to timber and ambient conditions the product is touch dry after 1 hour and should be suitable for overpainting, varnishing or staining after 24 hours.
  • Finish: Lignum Woodworm Killer is a clear liquid that does not leave a finish; however we advise to test on a small inconspicuous area before spraying to ensure product finish is as expected.

This ready-to-use woodworm killer is designed for internal use only

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Delivery options are only available for delivery to mainland UK (excluding Scottish Highlands, Scottish Islands, Channel Islands, Isle Of Man Northern Ireland and Eire). Delivery to Scottish Highlands, Scottish Islands, Channel Islands, Isle Of Man, Northern Ireland and Eire are limited to 20kg and are available at a Premium rate. Please contact us on or via our help line if delivery is required outside these areas. Alternatively select ‘World-wide Delivery’ and a member of our sales staff will contact you regarding your options and costs.


We offer for the mainland UK , as standard, a FREE delivery service on all orders having a value greater than £200.00 (excluding VAT). For orders having a value less than £200.00 (excluding VAT) a carriage fee of £8.50 + VAT will be levied. Goods will be sent by a national carrier on their 1-2 working day standard service. Customers must understand that delays can always happen while their order is with the courier, for this reason we can not guarantee your order will be with you next day.

It is important that the customer ensures that all the delivery details are correct and that the customer or someone acting for the customer is able to sign for the delivery. Twistfix accept no liability for failed deliveries as a result of incorrect delivery details or the absence of any authorised signatory. Twistfix will attempt delivery to the recipient between the hours of between 8am and 6pm. If no one is available to receive the delivery an attempt may be made to leave the item with a neighbour. Alternatively the carrier may return the item to the sorting office and leave a calling card at the recipient's address to advise of the attempted delivery. It is the responsibility of the customer to arrange to collect the item from the depot or to arrange re-delivery with the carrier. Further information regarding Delivery can be read at our Terms & Conditions.


Items returned and received in their original condition and packaging within 14 days of delivery will be accepted for exchange or refund subject to a 20% restocking fee. You will be responsible for the shipping costs incurred in returning the goods and should ensure the items are adequately insured while in transit to us. You should email to request to return items.

Where the goods are being returned because they are faulty or are not the goods that were ordered then, subject to the goods being returned in re-saleable condition, Twistfix will refund the cost of return shipping. Further information regarding Returns can be read at our Terms & Conditions.