Timber decay and woodworm
The survey says the wall plate could not be seen. What timber conclusion is simply unavailable until someone looks at that plate?
Any conclusion about the plate itself. The survey says the wall plate could not be seen, so nobody can say it is sound, decayed, or attacked. The inspection has recorded the limit. It has not concluded that the plate is rotten, and it has not given it a clean bill. The wall plate is the timber on the wall that takes the feet of the rafters or the joists. Until someone looks at that plate, every timber conclusion about it is unavailable. Other wood that was seen is a different sentence and does not stand in for the piece that stayed hidden.
Last reviewed 24 October 2026. Written for buyers in England and Wales unless this answer says otherwise. No named surveyor has signed this page. It is general guidance, not a report on your house, and not legal advice.
What is the fuller explanation?
Wall plates sit in the angle of the roof or under the joist ends, often buried in dust, felt and the top of the wall. They are also where leaking gutters and trapped moisture show up as wet rot. A surveyor who cannot see the plate cannot probe it, and a probe not made is not a pass. The report is doing the useful thing by saying so. Filling the gap with 'assumed sound' or 'likely decayed' both invent a timber the visit did not inspect.
Ask the surveyor what blocked the view: insulation, a fastened hatch, stored goods, or the way the roof is built. If you need the plate known, arrange a look that actually reaches it, with the seller's agreement, and judge the timber then. Tell the solicitor the survey is silent on the plate because it was not seen, not because it was approved. Do not let a lender form say the roof timbers passed as a class when this one was excluded.
What should you ask your surveyor?
- What stopped you seeing the wall plate?
- Are you making no timber conclusion about that plate?
- Which other timbers, if any, were seen and are a separate comment?
What are the typical next steps?
- Leave the wall plate as not seen and not concluded on.
- Do not borrow a verdict from timber that was visible.
- Arrange a look that reaches the plate if its condition matters.
Costs vary with the building and with who you instruct. Where this page does not cite a published figure, ask the surveyor, a relevant specialist, or your solicitor for a written quote. Do not treat a forum average as the price.
Also asked about this
If the rafter feet that were seen look bright, is the plate cleared?
No. Bright rafter feet are those feet. They are not the wall plate the survey could not see. A timber conclusion about the plate stays unavailable until someone looks at the plate itself. Keep the unseen wall plate inside the facts the surveyor actually recorded on the day.
Does a dry ceiling below mean the plate is dry?
No. A dry ceiling is a finish underneath. Moisture at a wall plate can sit in the angle without staining that ceiling. The survey did not see the plate, so dryness below is not a conclusion about it. Anything further about the unseen wall plate would be a different visit, not this note.