Woodworm Survey and Inspection
Find out which beetle you have and whether it is active, because that decides what you pay for.
- Names the beetle and checks activity
- Written report to compare quotes
- Request a visit from a local specialist
What a woodworm survey covers
A survey answers three questions. Which beetle is it, is it still active, and what needs doing?
Roof space
The surveyor checks rafters, purlins and joists for holes, dust and weak wood. They also look for leaks, because damp invites beetle.
Floors
They lift a board or open a hatch to see the joists and the sub-floor void. Air bricks and ventilation get a check too.
Joinery and stairs
Skirting boards, door frames and stair treads can hold beetle. The surveyor probes any soft spots.
Damp and decay
A moisture meter shows where wood is wet. Rot and woodworm often occur together, so the report covers both.
How a surveyor tells if beetle is active
Many homes show old holes from beetles that died out long ago. Treating those wastes money. A surveyor looks for signs of current activity before they recommend anything.
Fresh, pale-edged holes and clean dust under them suggest a live problem. Dark, dusty holes with no new dust suggest an old one. Some surveyors seal a few holes and check again later, because new holes prove activity.
- Fresh, light-coloured bore dust under holes
- Clean, sharp-edged holes with pale insides
- Live or recently dead beetles on sills
- Soft wood that crumbles when probed
What you should receive
Ask for a written report that names the beetle, says whether it is active and lists the timber affected. It should recommend a method, or say that no treatment is needed. A clear report helps you compare quotes.
If you are buying or selling, a lender or buyer may ask to see it. Keep it with your property papers, because it can speed up a sale.
What a survey costs
Practice varies. Some firms offer a free survey and some charge. Published guides give £80 to £250, depending on property size, and some firms credit the fee against any work.
Ask before you book, so there is no surprise. Our cost guide lists the sources.
Times when a survey makes sense
Selling a house
A buyer's survey may flag old holes. A report from you can calm the sale.
Mortgage concerns
A lender may ask for a timber report. A clear survey can remove the doubt.
Before you buy
A report before exchange shows what you are taking on. It also helps you negotiate.
Fresh holes or dust
If dust keeps returning, book a visit. Early action costs less.
How to get ready for the visit
Visits usually take an hour or two, although large buildings take longer. Ask the surveyor how long to expect.
- Clear access to the loft hatch and floor hatches
- Move boxes and furniture away from walls where you saw holes
- Note where and when you found dust or beetles
- Have your title or lease details ready if you share the building
Woodworm survey: your questions
Do I need a survey if I only found a few holes?
A few old holes may be harmless. A survey tells you for sure. Read active vs historic woodworm first.
How long does a survey take?
Most homes take an hour or two. Large or complex buildings take longer.
Will the surveyor go in my loft?
Yes, if access is safe. Clear the hatch and tell them about any known hazards.
Is a survey the same as a homebuyer report?
No. A homebuyer report is general and may flag woodworm. A specialist survey looks at timber in detail. See the buyer guide.
Ready to book a survey?
Send your postcode and what you have found, because details help the surveyor prepare. A local specialist will call you.