Woodworm Treatment
Woodworm is a general term used to describe an infestation caused by the wood-boring larvae of various beetle species. These larvae feed on timber, commonly affecting structural elements within a building as well as furniture and joinery.
At Bristol Damp Solution, we provide professional woodworm inspections and treatment as part of a wider, survey-led approach to timber and moisture-related issues.
Signs of Woodworm Infestation
Common indicators of woodworm include:
Small, round exit holes in timber
Fine powder (frass) around holes, indicating active infestation
Weakened or damaged timber surfaces
For the most common household species, exit holes typically measure 1mm to 1.5mm in diameter. In active infestations, adult beetles may also be seen emerging during the warmer summer months.
Understanding the Woodworm Lifecycle
Adult beetles lay eggs on or just beneath the surface of timber. Once hatched, the larvae bore through the wood as they feed, causing both cosmetic and structural damage. After pupating, they emerge as adult beetles and repeat the cycle.
Most wood-boring insects evolved in forest environments and therefore require elevated moisture levels within timber. For this reason, woodworm is often associated with underlying damp or ventilation issues rather than dry, well-ventilated conditions.
The Link Between Woodworm & Damp
A property affected by woodworm often also suffers from excess moisture. This may be caused by:
Poor ventilation in roof spaces, cellars or enclosed voids
Condensation issues
Localised damp affecting structural timbers
Addressing woodworm without resolving the moisture source can allow conditions for reinfestation to persist. Our inspections consider both timber condition and environmental factors.
Woodworm Treatment & Timber Repairs
Where required, treatment is carried out using modern, water-based micro-emulsion insecticides that are:
Low odour and low hazard
HSE approved
Non-flammable
Suitable for residential properties
Treatments are typically applied by spray but may also involve brush application, injection, or gel systems depending on timber type and accessibility. Treated areas can usually be reoccupied after approximately one hour.
Where structural integrity has been compromised:
Severely damaged timbers may be cut out and replaced
In suitable cases, timbers can be repaired economically using specialist resin repair techniques carried out by skilled tradespeople
Professional Assessment Is Key
Not all exit holes indicate an active infestation, and not all infestations require extensive treatment. A professional survey is essential to confirm:
Whether woodworm is active or historic
The species involved
The extent of damage
Any associated damp or ventilation issues
If you suspect woodworm or deteriorating timber within your property, a professional survey will ensure the correct course of action is taken.