Flood risk
The report mentions a demountable flood barrier next to the front threshold. Has a product the survey did not deploy been tested, or only named?
The barrier was recorded, not trialled. A demountable flood barrier beside the front threshold was recorded as a product on site. The survey did not fit it across the opening, check the seals or measure any flood depth. A government flood-risk check is a separate product from this inspection and was not carried out here. Seeing the barrier does not show that it matches the threshold, that the fixings are sound, or that water would be held back. The report notes what was visible. It has not decided that the barrier works.
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?
A demountable barrier is stored or parked until someone sets it into the opening. Until it is deployed, the survey can only say the product was present, not that the frame, the compression seals or the threshold rebate were tried. Flood water is a site risk read from maps and history, not from a barrier left beside the door. This visit did not time a deployment and did not stand the barrier in water. Naming the product is not a trial of it.
Ask the solicitor for any flood-risk search, any previous flooding note and any paperwork for the barrier itself, including how it is stored and who is meant to fit it. A lender may want that paper trail kept separate from the survey, which has not certified performance. If you want the barrier tried, that is a specialist or the owner's demonstration, not a rewrite of this report. Do not tell the lender the threshold was proved dry because a barrier was sitting next to it.
What should you ask your surveyor?
- Was the demountable barrier only seen beside the threshold, not fitted across it?
- Did this visit measure any flood depth or test the seals?
- Is a flood-risk search a separate product from the barrier note?
What are the typical next steps?
- Treat the barrier as named, not as a tested flood defence.
- Ask the solicitor for flood searches and any barrier paperwork.
- Do not tell a lender the threshold was proved to hold water.
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
Does a flood-risk map replace looking at the threshold?
No. A map is a separate government check of flood risk for the area. It does not deploy the barrier or inspect the rebate at this door. The survey only recorded the product it could see. Neither product has measured water at the threshold or shown that the barrier would seat.
Who would normally fit a demountable barrier if water was forecast?
That is an owner or specialist task, not something this survey carried out. The report can say the barrier was beside the threshold. It cannot say the pieces were complete, that the fixings took a load, or that someone on site knew the sequence. Ask the seller for the maker's instructions and any practice record, and keep that paper with the solicitor.