Subsidence, settlement and heave
A movement joint in a long side wall has closed up so the filler is squeezed out. What is that joint for, and what has its closure not measured?
The joint is there so a long wall can expand and contract without tearing the masonry, and its closure has not been measured. In this side wall the filler is squeezed out, which shows the joint has shut. The survey can record that the compressible material is no longer sitting in an open gap. It cannot say by how much the wall has shortened the gap, whether the movement is thermal, whether it is still going on, or what force is now in the masonry. Closure was seen. It was not measured as a history.
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?
Long runs of brick or block are given movement joints because the wall changes length with temperature and moisture. The filler is meant to be compressed and then recover. When it is squeezed out, the joint has used up its room, or something other than ordinary expansion is pushing. The inspection cannot tell those apart from a single look. No original width was supplied, no dimension of the remaining gap was turned into a series, and no tell-tale was set. The squeezed filler is a symptom.
Ask the surveyor what else the wall showed beside the closed joint, such as cracking at the nearest openings, and pass that package to a structural engineer if the wall is distorted. The solicitor can ask whether drawings show the joint as original. Do not describe the squeezed filler as a measured settlement. The survey saw a joint that had closed. It did not measure the movement.
What should you ask your surveyor?
- What did the squeezed filler look like, and along how much of the joint?
- Was any original width or later measurement available?
- What other distortion, if any, did you see in the same wall?
What are the typical next steps?
- Read the squeezed filler as a closed joint, not a measured movement.
- Ask whether drawings show the joint and its intended width.
- Refer the wall to an engineer if it is also cracked or out of plumb.
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 sealant is new, has the joint been repaired?
New sealant shows a fresh surface, not a measured joint. The survey found the filler squeezed out and did not record a width before or after. Someone may have tried to cover the closure. That attempt was not a measurement, and the inspection has not called the joint serviceable.
Does a closed joint mean the foundations have failed?
No. The joint exists for movement in a long wall, and closure shows the gap has shut. It does not, by itself, prove a foundation failure, and the survey did not measure the movement or open the footing. Cause stays open. The squeezed filler is not a settlement calculation.