Woodworm Inspection and Treatment in London

Is the woodworm activity current?

Old flight holes can remain for decades, so holes alone do not prove an active infestation.

Fresh pale bore dust, crisp-edged holes or emerging adult beetles provide stronger evidence. The size and shape of holes, timber species and location can help narrow the wood-boring beetle involved.

Avoid cleaning all dust before inspection. Photograph the evidence with scale, note when it appeared and retain any beetle safely so the assessment is based on more than historic damage.

• Fresh bore dust below holes or timber joints
• New beetles near timber or windows
• Crumbling edges or visibly weakened wood

Timber and moisture inspection

The survey considers activity, access and structural condition before treatment.

Accessible floorboards, joists, roof timbers, stairs and furniture are checked as relevant. The technician records hole patterns, fresh dust, coatings, damp conditions and the visible spread across connected timber.

Persistent moisture can favour certain beetles and also weaken wood independently. Pest treatment does not restore structural strength, so a surveyor, joiner or damp specialist may be required where deterioration is significant.

When woodworm treatment is appropriate

Treatment should be specified for confirmed or reasonably supported active infestation.

Suitable accessible timber may receive a professional surface or injected treatment depending on species, section and product instructions. Paint, varnish or other coatings can prevent penetration and may require preparation.

Hidden or inaccessible timber cannot be assumed treated. The proposal should define the areas included, any exclusions and whether further opening-up or specialist access is needed.

Preparing the timber area

Clear, sound access is needed for inspection and even application.

Move stored belongings away from affected timbers and follow instructions on lifting coverings or exposing surfaces. Electrical risks, fragile ceilings and confined areas must be identified before work starts.

Occupants and pets may need to remain outside the treatment zone for a specified period. Do not sand coated or damaged timber until the agreed preparation and safety requirements are clear.

Repair and prevention after treatment

Controlling insects and repairing damaged structure are separate responsibilities.

Replace or reinforce timber where a competent building professional advises it. Correct leaks, condensation or poor ventilation that contributed to damp conditions, and retain inspection access where practical.

Monitor for genuinely fresh dust or beetles during the relevant emergence period. Existing holes will remain visible after successful treatment and should not be used alone to judge a new problem.