“I’ve been told I’ve got woodworm… do I need treatment straight away?”
It’s a question we hear all the time in Leek — especially when small holes are spotted in floorboards, joists, or roof timbers.
The honest answer?
👉 No — woodworm treatment is not always necessary.
At Weather Wise Solutions — a family-run damp and timber specialist — we regularly inspect properties where timber shows signs of historic activity that no longer requires treatment.
🪵 What People Mean by “Woodworm”
“Woodworm” isn’t actually a worm.
It’s the larval stage of wood-boring beetles that tunnel through timber before emerging as adults.
The key point:
👉 The damage happens during the larval stage — not when you see the holes.
🔍 What Do Woodworm Holes Actually Tell You?
Those small round holes are:
👉 Exit holes — where the adult beetle has left the timber
This means:
- The lifecycle has already progressed
- The damage has already occurred
- The hole alone does not confirm active infestation
⚠️ The Biggest Misconception
👉 “Holes = active woodworm = needs treatment”
This is where many properties are over-treated.
In reality:
- Many infestations are historic
- Timber has since dried out
- No active lifecycle remains
👉 Treating these cases adds cost without solving anything.
💧 Moisture: The Real Deciding Factor
From a PCA perspective, this is critical:
👉 Woodworm activity depends on moisture in the timber
Typical thresholds:
- Below ~16% WME → low risk
- 16–20% → at risk
- Above 20% → suitable for infestation
👉 Without sufficient moisture, most infestations cannot continue.
🔍 When Treatment IS Needed
Treatment may be required if there is clear evidence of:
1️⃣ Active Frass (Fresh Dust)
- Fine, powdery dust near holes
- Light in colour and loose
👉 This indicates recent activity
2️⃣ Increasing Number of Holes
- New holes appearing over time
👉 Suggests ongoing lifecycle
3️⃣ Elevated Moisture Levels
- Timber consistently above ~20% WME
👉 Creates ideal conditions for infestation
4️⃣ Structural Impact
- Timber weakening or breaking down
👉 Requires both repair and treatment
✅ When Treatment Is NOT Necessary
In many Leek homes, we find:
- No fresh frass
- Old, darkened holes
- Dry timber conditions
- No ongoing lifecycle
👉 In these cases:
✔ No chemical treatment is required
✔ Monitoring and moisture control is sufficient
🧠 Why Moisture Control Matters More Than Chemicals
Even when woodworm is active:
👉 The root cause is usually moisture — not the insect itself
Without addressing:
- Damp conditions
- Poor ventilation
- Condensation
👉 Treatment alone may not prevent recurrence.
🔍 How We Assess Woodworm in Leek Homes
At Weather Wise Solutions, we take a diagnostic-first approach.
We assess:
- Timber moisture content (WME readings)
- Presence and condition of frass
- Type of infestation (where possible)
- Environmental conditions (ventilation, humidity)
- Structural integrity of timber
Our surveyors are CPD qualified in Dampness in Buildings, with several holding Level 3 qualifications in damp and timber inspection, ensuring accurate and responsible recommendations.
🛠️ The Right Approach
The correct approach is always:
👉 Confirm activity before recommending treatment
This may involve:
✔ Monitoring suspected areas
✔ Reducing moisture levels
✔ Improving ventilation
✔ Only treating timber where active infestation is confirmed
🧠 The Key Takeaway
👉 Woodworm holes do not automatically mean you need treatment
The real question is:
- Is it active?
- Is moisture present?
- Are conditions suitable for infestation?
👷 Professional Standards & Trusted Guidance
We work in line with:
🔗 Federation of Damp – https://federationofdamp.co.uk/
🔗 Damp Proofing Association – https://www.dampproofingassociation.co.uk/
And use trusted suppliers where required:
🔗 PAM Ties – https://www.pamties.co.uk/
🔗 Builders Super Store – https://builderssuperstore.co.uk/
🔗 Wykamol Group – https://wykamol.com/
You can view our independent reviews:
🔗 TrustATrader – https://www.trustatrader.com/traders/weather-wise-solutions-limited-damp-surveyor-newcastle-under-lyme
🔗 Checkatrade – https://www.checkatrade.com/trades/weatherwisesolutionslimited
If you’ve been told you have woodworm in your Leek home, the most important thing is:
👉 Don’t assume — diagnose properly.
📍 Book a Free Survey for your home here:
https://weatherwiseuk.co.uk/pages/contact