Subsidence, settlement and heave
After a large tree was removed the crack is wider at the top of the wall. What pattern is that, and what soil test has not confirmed heave?
The pattern is a crack wider at the top after a large tree was removed, and no soil test has confirmed heave. A crack that opens upward is the shape people associate with ground rising, and tree removal is a common reason buyers ask about heave. Association is not confirmation. The survey has recorded the shape and the history it was given. It has not tested the soil, and it has not proved the ground has heaved.
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?
Heave is upward movement as soil, often a shrinkable clay, takes up moisture after a tree that was drying it is felled. Cracks from that movement are often wider at the top and tighter lower down. The survey can describe that pattern if it sees it. It cannot sample the clay, measure moisture change, or date the movement. Removing a tree is context from the seller or the garden, not a laboratory result. The crack remains a visual finding until a ground investigation says more.
If the pattern needs testing, ask a structural engineer or a ground specialist about an investigation, and do not call the result heave until that work is done. Tell the solicitor the survey has not confirmed heave by a soil test. Pass on the tree removal as history, clearly labelled as history. Do not tell an insurer the ground has heaved because the crack is wider at the top.
What should you ask your surveyor?
- Is the crack wider at the top, and was a large tree removed?
- Has any soil test been left unmade, so heave is unconfirmed?
- Are you describing a pattern rather than a proved mechanism?
What are the typical next steps?
- Describe a crack wider at the top, not confirmed heave.
- Label the tree removal as history, not as a soil test.
- Ask for a ground investigation only if the pattern must be tested.
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 tree stump is still there, does that prove heave?
A stump proves a tree was removed or died. It does not test the soil. The survey has not confirmed heave. The crack pattern is still only the shape that was seen, wider at the top. History of a tree is not a ground test.
Does a narrow base to the crack mean the footing has dropped?
A crack tighter at the bottom is the shape being described, which is not the usual picture of a footing dropping away. The survey has not confirmed heave either. Shape is not a soil test, and no mechanism has been proved.