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Woodworm Killer 5L

100% of 100
£12.20 Ex VAT
£14.64 Inc VAT

Eradicate woodworm and other wood boring insects today! This high strength, ready-to-use woodworm killer is the easiest way to treat woodworm and protect against re-infestation.

Ready to Use Woodworm Treatment

Permagard Woodworm Killer is a ready-to-use high strength (0.249% insecticide) treatment designed to eradicate active woodworm. It is formulated to kill infestations of wood boring insects through all life stages in furniture, flooring, structural and other timbers. It also protects the wood from future attacks and re-infestation, providing peace of mind.

The product comes ready to use and can be simply applied with a paintbrush or low pressure spray to eradicate and provide lasting protection from woodworm. It is a water-based, virtually odourless and quick drying product.

It's vitally important that you effectively treat any woodworm infestation - watch our video below or read our woodworm treatment guide for all you need to know. 

How Woodworm Killer Works

Permagard Woodworm Killer is based on microemulsion technology. This means it is formulated with nano-particles - the tiny size allows the active ingredients to travel deep into the wood. The highly effective pyrethroid insecticide prevents wood boring insect attack and reinfestation as well as killing any active wood boring insects.

How to use Woodworm Killer

Permagard Woodworm Killer is easy to use. Start by making sure that the timber is clean and free from wood dust, contaminates and surface coatings such as oils, waxes and paints. Then, simply spray, brush or dip apply the woodworm killer on to the target timber for complete woodworm treatment. 

Wood treated with this woodworm Killer can be overpainted, varnished or stained when dry. 

Read our complete guide on How to Treat Woodworm.

Our product is designed for external and internal use. To ensure there is no effect on colour or finish when treating sensitive areas, test on an inconspicuous area.

Permagard's Woodworm treatment is registered for amateur use. Before applying please read the health and safety sheet. This product has been tested and approved as a preventative and curative measure for use against wood boring insects.


Permagard - Providing Solutions. Inspiring Confidence.

Permagard are experts in getting rid of woodworm for good. Browse our full range of woodworm treatmentsor read our guides on how to treat woodworm and how to restore woodworm-infested antique furniture


  • Kills active woodworm
  • Prevents infestation of wood boring insects
  • High strength formulation (0.249% insecticide)
  • Water based (Solvent free)
  • Preventative and Curative
  • Ready to use (no mixing required)
  • Targets all wood boring insects
  • Low odour
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