Slender Winter Partnership Ltd

Chartered Building Services Engineers

Head office

The Old School, London Road, Westerham, TN16 1DN
01959 564777

Company profile

The Practice responds to a wide range of clientele, offering comprehensive duties from feasibility study to final commissioning for all aspects of building services and public health design.

The Practice philosophy is for director involvement on all projects supported by professional staff utilising the latest design software.

A positive investment is made in the continued training and professional development of the technical members of the practice, together with effective and advanced computing and IT support. The practice offers a service of the highest standard supported by rigid quality systems and is registered to ISO 9001 and ISO 14001.


Slender Winter Partnership Ltd specialises in the design and on site review of the entire range of MEP building services. The Practice offers a particular commitment to the development of commercial designs to an agreed budget and a controlled expenditure which is achieved by utilising a project management team within the Practice, with particular emphasis being given to the commissioning and handover stages of all projects.

The Practice has expertise in all areas of commercial, residential, hotel, leisure, rail and public authority contracts. This expertise also extends to the production of asset registers, planned maintenance documentation, feasibility studies, legal representation and BREEAM assessments.

Operational Areas

The Practice operates throughout the United Kingdom from its offices in Westerham and works on selected projects overseas.

Framework Agreements

The Practice enjoys established Framework Agreements with the following major clientele:

  • London Underground Ltd
  • Network Rail
  • Transport For London
  • Siemens plc
  • Institution of Civil Engineers
  • University of Sussex
  • University of Kingston

Areas of Work

Design, Commercial and Industrial Projects

Railway and Transport, Office & Financial, Data Centres, Retail, Hotel & Leisure Complexes, Education, High End Residential, Social Housing, Local Authority/Healthcare, Sports Facilities, Commercial and Industrial

Specialist Services

Audit and Asset Reporting, Specialist MEP Reports, BREEAM assessments, Energy Advice, Expert Witness Representation, Building Regulation Compliance for Planning Submission, Project Management, Contract Administrator, Planned Maintenance


  • P J Slender C.Eng. FCIBSE, FConsE
  • C H Rowe B.Eng (Hons). C.Eng. MCIBSE
  • P Dunk I.Eng, ACIBSE, MASHRAE, MInstR
  • J Dimmick BSc (Hons) I.Eng. MIIE
  • P Bushell
  • D Sowerby Eng TechL, CIBSE
  • R Thomson BSc (Hons)


  • L N Winter C.Eng, FCIBSE, FIET


  • Association of Consulting Engineers
  • Building Services Research and 
  • Information Association
  • British Standards Institution 
  • Link-Up
  • Constructionline