Specialist Service
Woodworm Treatment
Proactive identification, eradication and prevention of woodworm in homes, barns and outbuildings — treating the cause, not just the beetle.

Woodworm is the everyday name for several species of wood-boring beetle whose larvae tunnel through timber over several years before emerging as adult beetles. Left untreated, sustained activity can seriously weaken structural timbers, floorboards and joinery.
JRP Ltd follows a systematic, proactive approach. We identify the species responsible, assess whether infestation is active or purely historical (a very common source of confusion — and unnecessary cost — for homeowners and buyers), treat affected timbers with an approved insecticide, and address any damp conditions that allowed the infestation to take hold in the first place.
This measured approach means you're never sold treatment you don't need. If a survey shows only old, inactive flight holes with no ongoing risk, we'll tell you plainly rather than recommend treatment for its own sake.
What's included
- Species identification and assessment of active vs historical activity
- Scoping of the full affected area, including roof and floor voids
- Application of approved insecticide to all at-risk timber
- 10 Year Guarantee and guidance on ongoing monitoring
Warning signs
When to call us
- Small round exit holes (1–2mm) in timber
- Fine powdery dust (frass) below holes
- Crumbly or weakened wood at edges and corners
- Sightings of small brown beetles, especially in spring
- Damp conditions that encourage continued activity
What you gain
Benefits of treatment
- Eradicates active infestation at the source
- Prevents further structural weakening
- Treatment matched to the specific species identified
- Addresses the damp conditions encouraging activity
- Avoids unnecessary treatment of dormant, historical damage
- 10 Year Guarantee with QANW Insurance Backed Guarantee available
Our process
How we work
- 01
Survey
Qualified Assessment to identify the species, assess active or historical infestation and scope the affected area.
- 02
Preparation
Expose affected timbers, remove debris and improve ventilation if needed.
- 03
Treatment
Application of approved insecticide to all at-risk timbers.
- 04
Aftercare
Guidance on ongoing monitoring, plus a 10 Year Guarantee (QANW IBG available).
Common questions
Woodworm Treatment FAQs
You may also need
Related services

Timber Treatment
Specialist treatment of rot, decay and infestation in structural timbers, joinery and roof spaces — protecting the parts of your home you can't always see.
Learn more
Wet Rot Treatment
Treatment and replacement of wet-rot-damaged timber in window frames, doors, joists and structural elements — before it spreads any further.
Learn more
Property Surveys
Independent damp and timber surveys with clear, written reports — for homebuyers, owners, surveyors and mortgage lenders across Pembrokeshire.
Learn moreRequest a no-obligation survey
Concerned about damp, timber decay or condensation? Send us an enquiry with a few details and we'll come back to you with professional, expert advice — backed by 35+ years serving Pembrokeshire.
