Survey finding
Wall bowing on your survey: how serious is it?
Bowing walls warrant immediate structural follow-up. This page covers the realistic outcomes.
Last updated: 6 May 2026. Editorially reviewed: 20 May 2026.
Finding
Wall bowing
What this usually means
Wall bowing — visible bulging or leaning — usually indicates wall tie failure (cavity walls), structural movement, or roof spread. Always warrants structural engineering involvement.
Why it matters
Lender retention is normal until cause is diagnosed.
Ask your surveyor
- Check:What's the suspected cause?
- Check:Is movement progressive?
Ask the seller
- Check:Insurance claim history?
- Check:Past structural reports?
Next steps
- •Get two written quotes from local trades before negotiating with the seller.
- •Speak to your mortgage broker before exchanging if the finding affects mortgageability.
Tool shortcut
Check subsidence signals for a UK address in 15 seconds
Directional BGS 1:1 million engineering geology, building age, tree context and the things to ask your surveyor.
Run a free previewCross-check this surveyor's flag with BGS clay susceptibility and tree-proximity data for the address.
What you need to know
Severity
Serious. Lender and insurer involvement likely; structural or specialist remediation.
Typical cost to fix
Structural engineer £400-£900. Wall tie replacement £1,500-£3,500/elevation. Reinforcement and rebuild £8,000-£25,000+.
Mortgage impact
Retention common.
Insurance impact
Standard if remediated.
When to pull out
Pull out if active progressive movement is confirmed and seller refuses to remediate.
When to renegotiate, and by how much
Engineering cost plus remediation plus 15% buffer.
Thinking of pulling out or renegotiating? What to do after a bad survey
Run the check on this address
The Survey Decoder explains the wording. The full report adds address-specific flood, subsidence, EPC, crime, listed status, building age and price comparison data, so a single finding isn't judged in isolation.
Run the check
Check subsidence signals for a UK address in 15 seconds
Directional BGS 1:1 million engineering geology, building age, tree context and the things to ask your surveyor.
Run a free previewHow MyPropertyScan produces this guide, and what it is not
Published by MyPropertyScan and written by Ziad Nasr, who is accountable for its accuracy. No page here is written or reviewed by a chartered surveyor, conveyancer or regulated adviser, and we do not claim otherwise.
This page is not:
- Chartered surveying — we do not inspect properties or produce RICS Home Survey reports
- Legal advice — we do not act as conveyancers or advise on title, tenure or contracts
- Mortgage or insurance advice — we are not regulated by the FCA and give no recommendations
Figures and process steps come from the published UK datasets and standards listed on this page, not from professional practice. Pages are updated when source coverage, survey cost assumptions, or lender and legal requirements materially change. Dataset limitations are set out on the methodology page.
Spotted something out of date or wrong? Email hello@mypropertyscan.com and we will correct it and change the update date.
Sources used
We use UK public and specialist sources where they are available. Public datasets can be incomplete, delayed, or missing for some addresses. Treat them as a starting point, not as a replacement for professional advice.
Source standard: preference goes to official government datasets, statutory bodies, professional standards, and primary dataset publishers. We cite the source family on the page and explain coverage limits rather than filling gaps with unsupported estimates.
- Professional standard: RICS Home Survey StandardRICS standard for condition-based residential surveys in the UK.
- Learn more from: RICS consumer guide to surveysConsumer-facing guide to survey types and when each level is appropriate.
- Official guidance: GOV.UK buying or selling your homeGovernment overview of the home buying and selling process.