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    Key staff

    The Partners are supported by a dedicated team of engineers, architects and technicians.  Brief details of the qualifications, experience and interests of our key staff members can be seen by selecting the appropriate links.

    • Juliette Sacher

      Juliette Sacher

      Senior Architect


      University of Bath, BSc (Hons), Architecture, 1995
      University of Bath, BArch (Hons), Architecture, 1998
      Chartered Architect, 2001

      Member, Royal Institute of British Architects

      Juliette Sacher is a Chartered Architect with over twenty years experience in the construction industry.  During this time she has been involved in a wide range of project types in the education, arts, and commercial office sectors.  Juliette has experience of different forms of procurement and has worked on new-build schemes, refurbishment projects within listed buildings, and on new secondary schools and university buildings.  She has led project teams at all stages of design and delivery in both the UK and France.

      Since joining the practice Juliette has carried out a variety of investigations relating to construction disputes including planning breaches, issues of compliance with professional duties and of design, specification and workmanship defects in roofs and cladding.

    • Ana Aquino

      Ana Aquino

      Senior Engineer


      Instituto Superior Técnico of Lisbon, MSc Civil Engineering, 2010
      Chartered Engineer, 2018

      Member, Institution of Civil Engineers

      Ana Aquino is a Chartered Civil Engineer with experience in the construction industry, in both the United Kingdom and Portugal.  Ana has worked with various structural materials and her experience includes seismic analysis and foundation design of buildings and bridges, investigative work on existing structures, design of post-tensioned concrete and temporary works design. Ana’s areas of particular interest include heritage and listed buildings.

      Since joining the firm, Ana has been involved in structural design reviews and appraisals of concrete and steel structures, analysis of defects and excessive movements in existing and listed buildings, and analysing the nature, extent and causes of cracking in reinforced concrete structures.

    • Dale Norris

      Dale Norris

      Senior Geotechnical Engineer


      City University, London, MEng (Hons) Civil Engineering, 2013
      Chartered Engineer, 2019

      UK Registered Ground Engineering Professional 2020
      Member, Institution of Civil Engineers
      Member, British Geotechnical Association
      Member, International Society for Soil Mechanics & Geotechnical Engineering
      Member, International Society for Rock Mechanics and Rock Engineering

      Dale Norris is a Chartered Civil Engineer with a specialisation in geotechnical engineering and experience across a range of sectors in the construction industry. Dale has worked on a variety of projects in the United Kingdom and overseas, with lead roles on projects during desk study, ground investigation, design, construction, and maintenance stages. Dale has experience of the design and construction of heavy civil works, including ground investigations, earthworks, slope stabilisation, embedded and gravity retaining walls, reinforced earth, shallow and deep foundations, directional drilling, and remediation of defects related to geotechnical works.

    • Thomas Baird

      Thomas Baird

      Senior Engineer


      Imperial College London, MEng (Hons) Civil Engineering, 2015
      Chartered Engineer, 2022

      Member, Institution of Structural Engineers

      Thomas Baird is a Chartered Structural Engineer with experience in structural design including residential, commercial, and industrial buildings. Thomas’ previous project work ranges from large new build concrete and steel structures to refurbishment of historic and listed buildings. He has experience in the design of deep basements, alterations to masonry and timber structures, and designing with materials such as carbon fibre reinforced polymers and glass.

      Since joining the firm, Thomas has been involved in a variety of forensic investigations including cladding and roofing defects which required detailed wind loading analysis, glass panels, and defects in masonry, precast concrete, and modular buildings.

    • Chris MacPherson

      Chris MacPherson

      Senior Architect


      University of Glasgow, BArch Architecture, 2008
      University of Glasgow, DipArch Architecture, 2013
      University College London, PGDip Professional Practice and Management, 2015
      Chartered Architect, 2015

      Member, Royal Institute of British Architects
      Member, Royal Incorporation of Architects in Scotland

      Chris MacPherson is a Chartered Architect with a portfolio of UK building projects across education, healthcare, hospitality and retail sectors, with a predominance in the design and construction of workplace/mixed-use schemes. Chris is an experienced project leader and principal designer, with a particular focus on architectural delivery, building information modelling and the complexities of refurbishing of existing assets.

      Chris’s forensic investigations of architectural matters to date have covered the weathertightness and fire safety of cladding and roofs and a range of issues relating to design, materials, workmanship and maintenance.

      Complementing his role at WJM&P, Chris is dedicated to supporting those working at earlier stages in the profession and provides mentorship through the Royal Institute of British Architects. In addition, he also advises a large architectural practice in their integrated management and continuing improvement of project standards.

    • Alison Hesketh

      Alison Hesketh

      Senior Architect


      University of Cambridge, BA (Hons), Architecture, 2007
      Royal College of Art, London, MA (RCA), 2010
      University of Bath, Post Graduate Certificate in Professional Practice, 2012

      Member, Royal Institute of British Architects

      Alison Hesketh is a Chartered Architect with over fifteen years experience in the construction industry. In architectural practice Alison has worked on the design and delivery of a wide range of award-winning projects, which include schools, large residential and mixed-use developments and urban masterplans. Alison has experience of leading large multi disciplinary teams on technically complex schemes in the UK.

      Since joining the practice Alison has investigated issues of compliance in relation to professional duties, design and workmanship for construction disputes regarding fire spread, fire performance and testing, facades, water ingress and completeness of contractual information.

    • David Wilson

      David Wilson

      Senior Technician


      Barking College, OND (Construction), 1985
      East Ham College of Technology, HNC (Civils), 1987

      David Wilson is our Senior Technician responsible for the Practice’s drawing office and for the production of architectural, civil and structural working drawings, reports and presentations. He has assisted in the design and development of new works and remedial schemes for steel, timber, masonry and concrete structures, bridges, historical buildings, earth and water retaining structures.

      David specialises in producing presentation drawings, technical illustrations and static or working models to explain complicated components, structures or concepts to non-technical parties. His work in this area has received Judicial commendation. He has also produced the illustrations for papers published in technical journals.

      David has acted as the Contract Administrator’s representative on site, co-ordinating/checking work and liaising with building facilities management, contractors and testing houses.

      David is experienced in the forensic analysis of photographs, videos, documents, drawings and in the surveying of building defects including tree root related subsidence issues.

    • Mark Christmas

      Mark Christmas

      Senior Scientist


      University of Bristol, BSc (Hons), 2005

      Mark Christmas joined the Practice as a scientist in 2006 and has worked on a range of structural and civil engineering projects in the United Kingdom and overseas. He is experienced in the surveying of building defects and on site testing. His interests and experience include tree-root related subsidence, water penetration through flat and green roofs, defects in surface coatings, deterioration of reinforced concrete marine structures, defects in sub-surface drainage systems, defects in concrete structures, defects in masonry and steel framed buildings, document control processes and contract administration.

      Mark produces working drawings, report and presentation illustrations and has been responsible for the production of civil working drawings for large projects including civil engineering drainage and paving schemes for major shopping centres and PFI hospitals.

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