How it works
RISA conducts an on-site inspection and provides a CPR 35-compliant expert report covering:
- compliance
- quality
- remedial work
When would it be used?
Used in legal disputes, court cases where an independent technical opinion is needed.
How much does it cost?
Costs vary based on case complexity, starting from £1499 including VAT.
How Long Does It Take?
Reports are typically delivered within 10–15 working days of inspection.
What Is an Expert Witness Report?
RISA’s Expert Witness Report is a formal, court-compliant document that provides independent technical analysis of window, door, conservatory, or roof light installations. Delivered as a CPR 35-compliant PDF, this report is suitable for legal proceedings and includes itemised findings on compliance, product suitability, workmanship quality, visible damage, and installation performance. Prepared by RICS-trained assessors, it gives the court the factual evidence it needs to make informed decisions.
Where Does RISA Help?
RISA supports legal professionals and consumers by providing impartial, expert evaluations of disputed installations. Our inspection and reporting process is structured specifically to meet court standards, ensuring credibility and transparency. Whether as part of a court case or alternative dispute resolution, the Expert Witness Report helps clarify technical issues and recommend appropriate remedial actions, including cost estimates where required.
Who Can It Help?
Homeowners
Gain a clear, independent assessment to support claims regarding poor workmanship or product issues.
Installers
Defend the quality of your work with credible, third-party validation from a recognised inspection body.
Solicitors
Rely on a structured, CPR 35-compliant report to inform court proceedings and strengthen case arguments.
Courts
Help the court to understand the technical nature of the dispute.
Expert Witness CPR 35 Compliant
Detailed, item by item inspection with a bespoke CPR 35 compliant report provided as a PDF.
Inspection undertaken by assessors who have undertaken RICS Expect Witness training
Available for installations of windows, doors, conservatories, or roof lights
Report covers:
- Building regulation compliance
- Suitability of product
- Quality of installation
- Any damage present
- Marks in glass
- Functionality of the installation
Provides recommendations for remedial works if necessary.
Can provide a range of costs for possible remedial works upon request.
Suitable for litigation use