Renegotiating or walking away
Nothing on the visit sampled helical stitching already in the wall, opened a request for a structural engineer or tested a survey that has not become that engineer's report. What has to stay undecided?
Whether the helical stitching already in the wall is working stays undecided. Nothing on the visit sampled those bars, opened a request for a structural engineer, or tested the idea that this survey has become that engineer's report. It has not. Helical stitching is a repair method set into cracked masonry. Seeing the bars, or the filled slots, is not a test of the crack. The survey has not become an engineer's report, and it has not decided that the movement has stopped.
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?
Helical bars are twisted metal rods bonded into bed joints to tie cracked brickwork back together. They can be the right repair when an engineer has specified them, and they can be old work whose history is unknown. A home survey sees the line of the repair and any crack that is still open beside it. It does not sample the bars, measure residual movement, or sign the design. Those steps are the engineer's if you instruct one. Until then the adequacy of the stitching is open.
Ask the solicitor to treat any request for a structural engineer as still unopened unless you have actually sent it. If you send it, give the engineer the survey notes and ask them to look at the stitched wall, not to rubber-stamp this report. Do not tell a lender that the survey has cleared the stitching. The two documents are not the same, and this visit did not create the engineer's one.
What should you ask your surveyor?
- Is the crack still open beside the helical bars?
- Who specified the stitching, if anyone has said?
- Has a structural engineer been instructed yet?
What are the typical next steps?
- Do not treat the survey as an engineer's report.
- Instruct an engineer separately if you need the stitching assessed.
- Give that engineer the survey notes rather than asking for a rubber stamp.
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
Were the bars tested for movement?
No. Nothing on the visit sampled the helical stitching. The bars were not tested, and residual movement was not measured. Seeing a repair line is not that test. Whether the stitching is working stays undecided until an engineer instructed for the purpose has reported.
Does seeing old stitching remove the need for an engineer?
No. Old bars can be adequate or they can be unexplained. The survey has not decided which. A request for an engineer was not opened by this visit, and the survey has not turned into that report. Seeing the work is only a visual note.