Property Defect Diagnosis Based in Knighton
Building defects can occur in properties of any age or type, often presenting as dampness, cracking, or unexplained deterioration. David Andrews M.R.I.C.S. provides independent property defect diagnosis based in Knighton, identifying the underlying cause of problems and advising on appropriate, practical solutions.
Identifying the Cause, Not Just the Symptoms
Superficial signs such as damp patches, cracking, or distortion often mask deeper underlying issues. Effective repairs depend on understanding why a defect has occurred, not simply addressing what is visible. David Andrews undertakes detailed investigations to establish the true cause of building defects, allowing informed decisions to be made and inappropriate remedial works to be avoided.
Independent advice is provided on suitable repair options, enabling clients to take that guidance forward with contractors or specialists of their choosing.
Common reasons for investigation include:
- Structural movement and cracking
- Dampness, condensation, and mould
- Material failure and decay
- Poor or defective alterations

Common Building Defects Investigated
David Andrews routinely investigates a wide range of building defects affecting residential and mixed-use properties.
Each inspection is undertaken methodically to establish the cause of failure and assess the implications for safety, durability, and repair.
- Foundation movement, including settlement, subsidence, and heave
- Effects of trees on foundations and below-ground structures
- Cracking in walls, floors, and other structural elements
- Failing or distressed retaining walls
- Defective or inadequate underpinning, often linked to insurance matters
- Dampness, condensation, mould growth, and water ingress
- Roof defects and rain penetration
- Timber decay and woodworm infestation
- Defective replacement windows and poor installations
- Plumbing leaks and drainage failures
- Malfunctioning or poorly performing heating systems
- Storm damage and vehicle impact
01547 520 954

Concerned That a Building Defect Could Become a Costly Problem?
Building defects rarely resolve themselves. Left uninvestigated, issues such as dampness, cracking, or structural movement can worsen over time, leading to unnecessary repair costs, disruption, and potential disputes. Obtaining an accurate diagnosis at an early stage allows informed decisions to be made before problems escalate.
Independent advice ensures that remedial works address the true cause of a defect, rather than treating symptoms alone.
- Cracks appearing or worsening over time
- Persistent damp or mould growth
- Signs of movement or distortion
- Failed or ineffective previous repairs
- Concerns following alterations or extensions
- Disputes linked to building condition or damage
Investigating building defects requires careful assessment, experience, and professional judgement. David Andrews provides a structured, evidence-led approach to defect diagnosis, ensuring problems are correctly identified and appropriate advice is given before remedial works are considered.
Each instruction is handled personally, from initial discussion through to advice on next steps.
What to Expect When You Instruct a Defect Investigation
Initial Discussion & Problem Overview
An initial discussion to understand the defect, how it has developed, and any previous repairs, allowing the investigation to be properly focused.
Detailed Inspection & Investigation
A thorough on-site inspection examining affected areas, construction, materials, condition, and relevant environmental factors.
Diagnosis & Verbal Findings
Clear verbal feedback outlining the likely cause of the defect, its implications, and any immediate concerns.
Written Advice & Repair Options
Where required, a written report sets out findings and practical guidance, including repair options or further investigation if needed.


Detailed Defect Investigation Services
No building is perfect, even a new-build. The passage of time will inevitably result in defects coming to light and elements failing. David Andrews is able to investigate and report upon a wide range of building defects and failures, establish the cause and prescribe suitable remedies, which in some instances could be setting out various options for repair.
Identification of the precise cause of a problem is critical, especially where dampness, condensation and mould growth issues arise. Incorrect diagnoses will lead to ineffective remedies or even make the problem worse. This is where David Andrews’s experience is invaluable.
Guidance on frequently difficult repair or replacement decisions can be provided, which could relate to a comparatively minor part of the building, such as a single window frame through to the entire building, i.e. complex refurbish or rebuild decisions.
- Failing retaining walls
- Timber decay and woodworm
- Effects of trees on foundations
- Defective replacement windows
- Storm damage and vehicle impact
- Plumbing leakage and drainage problems
- Cracking in walls, floors and other structural elements
- Settlement, subsidence and heave issues with foundations
- Dampness, condensation, mould, rain ingress and roof leakage
- Defective or inadequately extensive previous underpinning of foundations – often involving resolving disputes with insurance companies
Frequently Asked Questions
Clear, professional answers to common questions about property defect diagnosis in Knighton and the surrounding areas.
What is property defect diagnosis?
Property defect diagnosis involves investigating building problems to establish their underlying cause, rather than simply identifying visible symptoms. This allows appropriate repairs to be specified and helps avoid ineffective or unnecessary remedial work.
When should I instruct a defect investigation?
A defect investigation is advisable whenever issues such as cracking, dampness, distortion, or unexplained deterioration are present, particularly if problems are worsening, recurring, or have not been resolved by previous repairs.
Can defects occur in newer properties?
Yes. Even newly built properties can suffer from defects due to poor workmanship, inadequate detailing, or material failure. A defect investigation can help identify issues early before they become more serious or costly.
Will you advise on how defects should be repaired?
Yes. Advice is provided on appropriate remedial options once the cause of a defect has been identified. This allows clients to seek quotations or further advice from contractors or specialists with clarity and confidence.
Do you work with insurers, solicitors, or other professionals?
Yes. Defect investigations often support insurance claims, dispute resolution, or legal matters. Clear professional advice and written reports can be provided to assist discussions with insurers, solicitors, and other appointed professionals.
Will I receive a written report?
Where required, a written report is prepared setting out the findings, conclusions, and practical guidance. In some cases, verbal advice alone may be sufficient, depending on the nature of the defect and the client’s needs.