Independent Opinion
Conclusions are based on the available evidence, recognised standards and professional judgement rather than the outcome sought by any party.
UK
Nationwide Instructions
Our Practice
Specialist Knowledge Applied with Clarity and Integrity
Bralsford, Stubbs & Associates Expert Witness Services provides independent expert witness services specialising in plumbing, heating, mechanical building services, renewable technologies and retrofit compliance.
We act on behalf of solicitors, insurers, local authorities, Trading Standards, businesses and private clients across the United Kingdom, delivering clear, impartial and technically robust expert evidence in support of dispute resolution and legal proceedings.
Our strength lies in combining decades of practical industry experience with modern technical and regulatory knowledge, enabling us to provide authoritative opinions across both traditional building services and emerging low-carbon technologies.
- Expert evidence grounded in extensive practical industry experience
- Reports prepared in accordance with CPR Part 35 where applicable
- Gas Safe registered expertise alongside traditional and modern low-carbon building services
- Residential, commercial, legal, insurance and regulatory matters
- Continuity with a named expert throughout the instruction
Areas of Expertise
Types of Instructions We Regularly Undertake
We are regularly instructed by solicitors, insurers, local authorities, Trading Standards, businesses and private clients to investigate technical issues relating to plumbing, heating, mechanical building services, renewable technologies and regulatory compliance.
- Installation defects and workmanship disputes
- Plumbing, heating and mechanical building services failures
- Renewable energy and low-carbon system underperformance
- Heat pump, solar PV and associated system investigations
- Water damage, leaks and drainage investigations
- Personal injury and safety-related incidents
- Building Regulations, British Standards and regulatory compliance
- PAS 2030, PAS 2035, MCS and TrustMark compliance
- Gas installations and Gas Safe related matters
- Insurance investigations and technical negligence claims
- Technical dispute resolution and forensic investigations
- CPR Part 35 compliant reports for Court proceedings
We are experienced in acting as both Single Joint Experts and Party-Appointed Experts, providing independent, objective and technically robust evidence suitable for Court proceedings, arbitration, mediation and alternative dispute resolution.
How We Work
The Principles Behind Every Instruction
Our approach is built around independence, technical accuracy, clear communication and professional accountability.
Thorough Investigation
Instructions are approached methodically through document review, inspection, technical analysis and consideration of relevant obligations.
Clear Explanation
Complex building-services issues are explained in structured, accessible language without losing the technical detail needed to support an opinion.
Named Expert Continuity
The appointed expert remains closely involved from initial review through reporting, expert discussion, conference and any subsequent hearing.
Meet the Experts
Experienced Specialists in Building Services & Compliance
Russell Bralsford and Darren Stubbs combine long-standing practical experience with forensic investigation and detailed knowledge of traditional and modern building-services systems.
Russell Bralsford
Managing Director & Expert Witness
A Master Plumber and experienced expert witness with more than 50 years' experience in plumbing, heating and mechanical building services. Russell brings extensive practical knowledge to technical disputes, inspections, reports and formal proceedings.
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Darren Stubbs
Co-Owner & Technical Director
Darren specialises in forensic diagnostics, system failure, renewable technologies and regulatory compliance. His work includes consideration of heat pumps, low-carbon systems, retrofit standards and the responsibilities arising under relevant certification and compliance frameworks.
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