Construction expert witness services for solicitors, contractors and property owners

Construction disputes turn on technical evidence. Survey Merchant provides RICS chartered surveyors as construction expert witnesses for court proceedings, arbitration and adjudication across England and Wales — every report prepared to the standard required by CPR Part 35, with the expert's overriding duty owed to the tribunal.

Construction disputes we act in

• Building defect claims — defective workmanship, failed extensions and conversions, roofing and structural failures, damp and waterproofing defects.
• Incomplete or abandoned works — scope, quality and cost-to-complete assessments.
• Contract administration disputes — certification, variations and practical completion disagreements.
• Professional negligence — claims involving surveyors, designers and contract administrators.
• Adjudication and arbitration support — fast, technically robust evidence to statutory deadlines.

Single Joint Expert or party-appointed

We accept appointments as Single Joint Expert — increasingly the courts' preference for proportionate construction claims — or as a party-appointed expert prepared to produce joint statements, answer Part 35 questions and give oral evidence under cross-examination.

What you receive

• Site inspection with photographic schedules of the works and defects
• Analysis of workmanship against contract documents, Building Regulations and good practice
• A CPR Part 35-compliant report with the expert's declaration and statement of truth
• Repair methodology and costings evidence where directed

Fees and timescales

Fixed or hourly fees quoted on the pleadings and volume of documents; typical reporting timescales are 2–4 weeks from inspection, faster for adjudication timetables.

See our full expert witness services or request an expert CV and fee quote →