Age and type of house

Why does a boot scraper or a hollow in a Victorian threshold matter?

Because it can hold water against the bottom of the door, which is a path for moisture into the door, the frame and the floor edge. It is not, by itself, rising damp, and it is not a verdict on the damp-proof course. The survey should describe the hollow and where the water sits; filling it in is not something the inspection does.

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?

Old thresholds were often cut for a scraper or worn into a dish. Rain then stands against the door until it soaks the timber or runs inside. A home survey can see the hollow, the rotten end of the door and a stain on the board inside. It cannot tell you the wall is rising-damp because the step holds a puddle. Government damp guidance starts with the cause. Here the cause may be the step.

The Property Care Association’s point, in plain terms, is that moisture has to be understood before anyone sells a treatment. A chemical course in the wall does not empty a dish in the stone. Ask whether the surveyor saw rot in the door, a gap under it, or only the hollow. Do not let a damp quote skip the threshold because the meter beeped at the skirting.

What should you ask your surveyor?

  • Does the hollow hold water against the door, or is it only a worn stone?
  • Is the door or the floor edge soft, or is the comment only about the step?
  • Are you calling this rising damp, or water sitting at the threshold?

What are the typical next steps?

  1. Show a joiner the door and the hollow before you show a damp firm the skirting.
  2. Do not fill the hollow on the seller’s step before exchange.
  3. Keep any rising-damp comment separate unless the survey actually made one.

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

Is a boot scraper a listed fixture the survey can approve?

No. This question is about water. Listing is a different subject, and the survey does not approve fittings.

Does a new mat well cure a rotten door?

A mat can still sit in a hollow that holds water. Look at the door, not only the mat.

Sources