Over 40 years of professional experience investigating water-related problems in construction and environmental health. Acted as expert or single joint expert for over 300 civil and criminal cases, arbitration, adjudication and public enquiries. Recent clients have included DEFRA, Drinking Water Inspectorate, NHS, Environment Agency, National House Building Council, local authorities and water PLCs. Specification and management of water systems and water protection in buildings • Drainage • Sewage treatment • Septic...

I am a chartered quantity surveyor with over 18 years’ construction experience in residential, Ministry of Defence, education, healthcare, industrial, mixed-use, infrastructure and commercial building. I have significant hands-on experience in quantity surveying and contract administration under numerous suites/forms of contract including JCT, PPC, NEC, EPIC/EPC and bespoke forms, as well as experience of most methods of procurement. I am a Partner at Quantum Experts and able to act as a party-appointed or...

Architecture • Building defects and regulations • Health and safety

Nigel is a well-respected and experienced building surveyor. He has particular expertise in the design and management of disabled adaptations. Nigel's early career (1977-1985) was spent as a District Building Officer with NHS Estates. Nigel was responsible for the management of capital programmes, overseeing the refurbishment of the NHS Estate and managing the maintenance teams. Nigel started his own practice in 1985 to provide surveying and project management services. Nigel has built a varied client base,...

During the 31 years of my business life I have practised as a surveyor advising on many aspects of residential and commercial property, investment, development and management. This includes: • Valuation • Survey • Pathology • Defect diagnosis • Sale • Letting • Purchase • Management • Repair • Advice on landlord and tenant • Dilapidations • Boundary disputes • Party walls • Right to light • Building disputes I have extensive valuation experience on residential and commercial properties throughout London, the South East and UK wide procured...

I am a chartered quantity surveyor with over 18 years’ construction experience in residential, Ministry of Defence, education, healthcare, industrial, mixed-use, infrastructure and commercial building. I have significant hands-on experience in quantity surveying and contract administration under numerous suites/forms of contract including JCT, PPC, NEC, EPIC/EPC and bespoke forms, as well as experience of most methods of procurement. I am a Partner at Quantum Experts and able to act as a party-appointed or...

Architecture • Building defects and regulations • Glass and glazing systems • Health and safety

Building contract disputes • Disrepair claims • Defective design & workmanship negligence claims • Building pathology • Building conversion & restoration • Party Wall, etc., Act Mr Mathieson is a Member of the Royal Institution of Chartered Surveyors, Managing Director of Ellis Belk Associates Limited and a practising Chartered Building Surveyor with many years' experience investigating building defects of both design and workmanship. In addition to his expert witness workload, Mr Mathieson has been involved with Channel...

Structural engineering • Civil engineering • Forensic engineering • Maritime engineering • Coastal engineering • Design • Construction • Workmanship • Professional negligence • Damage • Defects analysis • Cracking • Buckling • Corrosion • Deflections • Deterioration • Dilapidations • Settlement • Subsidence • Heave • Ground movement • Concrete quality • Concrete durability • Concrete strength • Concrete testing • Basements • Foundations • Refurbishment • New build • Historic buildings • Raised access floors • Floor slabs • Screeds • Structural analysis • Structural stability •...