Also known as a Defect Analysis Survey—is a focused, expert inspection carried out to investigate a specific problem or area of concern within a property. Rather than assessing the whole building like a general survey, this type of survey is designed to diagnose the cause of a particular issue and recommend the most appropriate course of action.
It’s conducted by a qualified Chartered Building Surveyor, with specialist knowledge in building pathology and construction techniques. The surveyor doesn’t just identify the visible symptoms, but works to uncover the underlying cause of the problem—offering a reliable, independent assessment.
When Is a Defect Survey Needed?
A Defect Survey is ideal when there is a known or suspected issue in the property, such as:
• Cracks in walls or signs of subsidence or movement
• Evidence of dampness, water ingress, or mould
• Issues with roofing, chimney stacks, or guttering
• Signs of timber decay, rot, or pest infestation
• Unusual noises or structural instability
• Problems following recent construction or alterations
Whether you are a homeowner, buyer, landlord, or property manager, a defect survey can give you the clarity needed to address issues quickly and confidently.
What Does It Include?
✔ A site visit and thorough visual inspection of the affected area(s)
✔ Use of diagnostic tools where necessary (e.g., moisture meters, thermal imaging)
✔ Identification of the cause(s) of the defect
✔ Clear photographic evidence and illustrations where appropriate
✔ Detailed written report with findings, implications, and recommended remedial actions
✔ Guidance on whether further investigation (e.g., invasive inspection or structural engineer input) is needed
✔ Independent, expert advice tailored to the building’s construction and condition
Without expert diagnosis, it’s easy to misidentify the cause of a problem—leading to ineffective or unnecessarily expensive repairs. A Defect Survey ensures that repairs are targeted and appropriate, helping to prevent further damage, reduce long-term costs, and protect the value of your property.