
WHO WE ARE
Meet the expert behind Lestair Services' Expert Witness Mechanical Services.
As an experienced Project Manager (PM) with over 30 years industry experience, in the past Lester has successfully managed refurbishment works to Government Buildings for Ministry of Justice (MoJ), the Home Office (HO) and UK Border Force, including refurbishment works at Heathrow, Gatwick, Stansted, and Luton airports. Lester delivers strong Project Management on the principles of high quality, timely delivery to budget, right first time and innovation using his extensive experience of managing the delivery of multifaceted and challenging projects. Lester is an expert witness in heating, ventilating and air conditioning industry for new build and fit-outs (e.g. projects at ASDA stores, McDonalds, D&B and pre-designed CAT “A” and “B” fit-outs to commercial).
LESTER ABRAHAMS
I Eng ACIBSE MASHRAE FCMI Affiliate IOSH
Lester Martin Abrahams is a highly experienced professional in the mechanical services industry, specialising in heating, ventilation, and air conditioning (HVAC) systems. With over 30 years of expertise, he now focuses on providing expert witness services, leveraging his extensive technical knowledge and real-world experience to assist in resolving disputes and offering clear, authoritative insights.
EXPERTISE
Academically, Lester holds an HND in Environmental Engineering and is a Fellow of the Chartered Management Institute, with additional affiliations to CIBSE, ASHRAE, and IOSH. His roles as Contracts Manager, HVAC Specialist, and Project Manager have honed his ability to handle technical, contractual, and compliance-related challenges, making him exceptionally qualified to act as an expert witness.
CERTIFICATIONS
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SMSTS (Site Management Safety Training Scheme).
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CSCS [Black] Skillcard (Construction Skills Certification Scheme).
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Kier Authorised Person for Hot Works.
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SC Cleared and DBS checked.
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Asbestos Awareness Certified.
PROFESSIONAL MEMBERSHIPS
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Associate Life Member of the Chartered Institution of Building Services Engineers (CIBSE).
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Fellow of the Chartered Management Institute (CMI).
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Life Member of the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE).
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Affiliate of the Institution of Occupational Safety and Health (IOSH).

Lester’s dedication to precision, integrity, and excellence is the cornerstone of his professional practice. His clients benefit from his unparalleled industry knowledge, meticulous attention to detail, and commitment to delivering solutions that meet the highest standards.

OUR COMMITMENT
At Lestair Expert Witness Mechanical Services, our commitment is to deliver expert testimony and consultation that upholds the highest standards of accuracy and integrity.
We bring a balanced blend of technical proficiency, industry experience, and professional ethics to every case, ensuring our clients receive exceptional support and guidance.
CORE VALUES:
Precision
We are dedicated to providing precise and reliable expert witness services, backed by thorough analysis and unwavering attention to detail.
Professionalism
Professionalism is at the core of our approach, guiding our interactions, methodologies, and the delivery of expert opinions and reports.
Ethical Practice
Ethical practice is non-negotiable for us. We adhere to the highest ethical standards, ensuring impartial and principled expert witness services.