Woodworm treatment icon Woodworm Treatment

Woodworm: Signs of Active Infestation & Treatment

Professional woodworm treatment across South & West Yorkshire, with local pages for Sheffield and Leeds.

Woodworm holes don’t always mean live larvae — an inspection tells you the truth.

BPCA certified · Confirms the woodworm is active before treating · Free survey · No call-out fee · 7 days a week

BPCA CertifiedConfirms Active FirstFree Survey£5M Insured
BPCA member
CHAS registered
110+ Reviews
£5M Public Liability Insured
All Payments Accepted

At a Glance

Service
Woodworm Treatment
Provider
Apex Pest Control Ltd
Locations
Sheffield, Leeds, Rotherham & Barnsley
Pricing
Free survey, then a fixed quote
Method
Confirm active — treat the timber & the damp behind it
Credentials
BPCA certified · £5M insured
What You’re Dealing With

Is Your Woodworm Still Active? That’s the First Thing Apex Checks

Apex Pest Control Ltd treats woodworm across South and West Yorkshire, and the first question on every job is whether the infestation is active. Woodworm is the larvae of wood-boring beetles — most often the common furniture beetle (Anobium punctatum) — tunnelling through timber for years before emerging as adults from May to September.

Old, treated or dormant woodworm leaves grey, weathered holes and no fresh dust, and usually needs no treatment at all. An active infestation leaves clean, fresh 1–2mm round exit holes, fine light-coloured frass (bore dust) beneath them, and live beetles in summer.

Apex Pest Control confirms which you have at a free survey — and never sells you treatment you do not need.

Woodworm treatment icon

Woodworm Profile

Usual culpritCommon furniture beetle (Anobium punctatum)
Damaging stageThe larva — boring timber for years
Active signsFresh 1–2mm holes + light frass + beetles May–Sept
DriverDamp timber (above 55% humidity)
PricingFree survey, then a fixed quote

The Signs of Woodworm — and Which Beetle You Have

Apex Pest Control Ltd identifies the beetle and the signs, because the treatment depends on the species and the extent. Woodworm is often flagged on a house survey with a lender wanting proof it has been dealt with — so Apex inspects, confirms whether the beetle is still active, and provides a written report.

Common furniture beetle

Anobium punctatum — small round 1–2mm holes and gritty frass in floorboards, joists, furniture and roof timbers. The usual “woodworm”.

Deathwatch beetle

Xestobium rufovillosum — larger 3mm holes in old, damp hardwood such as oak beams, common in period and historic buildings.

Powderpost beetle

Lyctus brunneus — very fine, flour-like frass in the sapwood of hardwoods, distinct from the gritty dust of the furniture beetle.

Easily confused: biscuit beetle

The biscuit beetle is a stored-food pest, not a timber pest. Apex Pest Control identifies it correctly before any treatment, so you never treat the wrong thing.

The signs to look for

Clean round exit holes, fine bore dust (frass), tunnels in timber, crumbling or weakened wood, and adult beetles emerging in summer.

Active or old?

Fresh, light frass and clean holes mean an active infestation; grey, weathered holes with no dust usually mean old woodworm that needs no treatment.

Why Professional

Why Use Apex for Woodworm?

Apex Pest Control Ltd treats woodworm properly because clearing it depends on confirming it is active, identifying the beetle, and treating the damp behind it.

We confirm it is active first

Apex Pest Control surveys before quoting, so you never pay to treat old or dead woodworm that needs no work at all.

We treat the timber at source

A professional boron or permethrin-based insecticide is applied to the affected timber, reaching the larvae a shop-bought product cannot.

We tackle the damp

Woodworm thrives in damp timber, so Apex flags the moisture and ventilation issues that let it take hold, and the dry or wet rot that often sits alongside it.

BPCA certified, fully insured

RSPH Level 2 qualified technicians, £5M public liability insurance, and HSE-approved products on every visit.

How Apex Pest Control Treats Woodworm

Apex Pest Control Ltd follows a proven, survey-led process carried out by a BPCA-certified technician.

  1. Free survey & identify

    Confirm the infestation is active, identify the beetle (furniture, deathwatch or powderpost) and map the extent across the timber.

  2. Quote honestly

    A clear, fixed quote based on what the survey finds, from a single piece of furniture to structural roof timbers.

  3. Treat the timber

    Apply a professional boron or permethrin-based insecticide to the affected timber, treating the larvae at source.

  4. Address the damp & advise

    Identify the moisture allowing woodworm to thrive, advise on ventilation and structural timber, and re-check where needed.

Free survey
then a clear, fixed quote

Woodworm treatment is quoted after a free survey, because the job ranges from a single antique to whole structural roof timbers. No call-out fee.

Customer Reviews

What Our Customers Say

"Apex are wonderful — quick to respond, punctual, and great at communicating. Tony is so knowledgeable and trustworthy. We first called almost 40 years ago and wouldn’t use anyone else."

Gill & Mike Hughes
Sheffield · Google

"Absolutely fantastic service. Tom came out the day I enquired, very professional and knowledgeable, and explained everything thoroughly. Highly recommend."

Kristian T
Sheffield · Trustpilot

"Five-star assistance from Tony. I really appreciate his straightforward approach, knowledge and professionalism."

Clare N
Yorkshire · Trustpilot

Rated 4.9/5 from 110+ reviews across our Google (Sheffield & Barnsley) and Trustpilot profiles.

How Much Does Woodworm Treatment Cost?

Woodworm treatment is always quoted after a free survey — because the job ranges from a single antique to whole structural roof timbers, and the price depends entirely on what the survey finds.

Every job starts with a

Free Survey

then a clear, fixed quote upfront · no call-out fee

  • Free survey to confirm whether the woodworm is active
  • Beetle identification — furniture, deathwatch or powderpost
  • A fixed quote upfront — the price you are quoted is the price you pay
  • Treatment of the timber and advice on the damp behind it

Apex Pest Control Ltd gives a clear, fixed quote upfront, with no call-out fee. The price you are quoted is the price you pay, all plus VAT. Book your free survey to get started.

Why Choose Apex for Woodworm Treatment?

Apex Pest Control Ltd is a BPCA-certified, family-run Yorkshire business. Founder Tony Johnson has 40 years' experience across pest control, forestry and wildlife management, and the team holds RSPH Level 2 qualifications — so woodworm in beams, staircases, floors and period timber is identified and treated correctly.

BPCA Certified

Every technician holds current BPCA certification — the recognised UK standard for professional pest control.

Confirms Active Before Treating

Apex surveys before quoting, so you never pay to treat old or dead woodworm that needs no work.

Treats the Timber & the Damp

Apex treats the affected timber and identifies the moisture and ventilation issues that let woodworm take hold.

RSPH Level 2 Qualified

The team holds RSPH Level 2 qualifications and 40 years' forestry and pest experience, so beams and period timber are treated correctly.

Free Survey, Fixed Quote

A free survey, then a clear, fixed quote upfront with no call-out fee — the price you are quoted is the price you pay.

£5M Public Liability

Fully insured to £5M public liability, so you are protected on every visit.

Coverage

Where Do We Treat Woodworm?

Apex Pest Control Ltd covers South and West Yorkshire from four local offices: Sheffield, Rotherham, Barnsley and Leeds. Choose your nearest area below for local availability, response times and area-specific advice.

Sheffield

Woodworm treatment in Sheffield and surrounding areas.

Woodworm treatment in Sheffield

Rotherham

Woodworm treatment across Rotherham and nearby towns.

View Rotherham

Barnsley

Woodworm treatment throughout Barnsley and the surrounding area.

View Barnsley

Leeds

Woodworm treatment across Leeds and West Yorkshire.

Woodworm treatment in Leeds
Surveys, Heritage & Landlords

Woodworm Flagged on a Survey, or in a Period Property?

Apex Pest Control Ltd inspects woodworm flagged on a building or mortgage survey, confirms whether it is active, treats it, and provides a clear report for the sale. The team also treats woodworm in period and listed properties, churches and heritage timber across South and West Yorkshire, where older oak and softwood beams need careful, correct treatment. For landlords and estate or property managers, Apex Pest Control delivers the same documented, professional service.

Commercial Pest Control

About Woodworm — Facts & Behaviour

A little beetle biology explains why confirming activity and fixing the damp matter as much as treating the timber.

The larvathe stage that bores the timber for years
>55% humiditythe damp level woodworm thrives in
Often deadold, weathered holes need no treatment
Adult beetles emerge and leave the holes, but the larvae have been boring the timber for years beneath the surface. Apex Pest Control Ltd treats the timber to reach the larvae at source, not just the adults you see in summer.
Woodworm thrives in timber above about 55% humidity, which is why fixing the moisture matters as much as treating the wood. Apex identifies the damp, ventilation and rot allowing the infestation to take hold.
Grey, weathered holes with no fresh frass usually need no treatment, which is why Apex Pest Control confirms activity first — so you never pay to treat woodworm that is already dead.
The common furniture beetle is the usual woodworm; the deathwatch beetle attacks old, damp oak in period buildings; the powderpost beetle leaves flour-like frass in hardwood sapwood. Apex Pest Control Ltd identifies the species before treating — see also carpet beetle treatment.

Woodworm Treatment — Frequently Asked Questions

Answers to the questions we hear most often. If yours is not listed, call us on 0114 349 1098.

Apex Pest Control Ltd quotes woodworm treatment after a free survey, because the job ranges from a single piece of furniture to structural roof timbers. The price depends on what the survey finds, is fixed and confirmed upfront, with no call-out fee, all plus VAT.
Active woodworm shows clean, fresh 1–2mm round holes, fine light-coloured frass (dust) beneath them, and live beetles from May to September. Old or dormant woodworm leaves grey, weathered holes and no fresh dust. Apex Pest Control confirms which you have at the survey.
Often not. If the woodworm is old and no longer active, Apex Pest Control Ltd will tell you so and will not treat it — you should never pay to treat woodworm that is already dead. The survey settles it before any work is quoted.
Woodworm thrives in damp timber, generally above 55% humidity. Apex Pest Control treats the affected timber and identifies the moisture, ventilation or rot allowing it to take hold, so the problem does not simply return.
Apex Pest Control Ltd inspects woodworm flagged on a building or mortgage survey, confirms whether it is active, treats it where needed, and provides a clear report for your sale or purchase.
Apex Pest Control surveys and confirms the infestation is active, identifies the beetle, then applies a professional boron or permethrin-based insecticide to the affected timber and advises on the damp behind it.
The signs are small round exit holes, fine bore dust (frass) below them, tunnels in timber, weakened or crumbling wood, and adult beetles emerging in summer. Apex Pest Control identifies these at a free survey.
The common furniture beetle leaves small round holes; the deathwatch beetle leaves larger holes in old damp oak; the biscuit beetle is a food pest, not a timber pest, and is easily confused. Apex Pest Control Ltd identifies the species correctly before treating.

Worried About Woodworm? Start With a Free Survey

Found holes and dust in your timber, or woodworm flagged on a survey? Apex Pest Control Ltd confirms whether it is active, identifies the beetle, and treats the timber and the damp behind it — across South and West Yorkshire, free survey, no call-out fee, 7 days a week.

BPCA CertifiedConfirms Active FirstFree Survey£5M Insured