We are one of the UK’s top five family-owned and operated mechanical, electrical and public health (MEP) businesses.

Delivering outstanding projects throughout the built environment for valued customers across the UK.

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90% of Our Work is Repeat Business

100% of our clients would recommend us

8.9 out of 10 Project KPI Score

70 Years of Engineering Excellence

News & Social

  • On the eve of #INWED20 we celebrate the work of Annabel Moore BEng - a talented member of our Mechanical Design Eng… https://t.co/lYRT2deo0H

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  • Happy Father’s Day to all the Dads out there! Wishing you a very restful and relaxing day. #happyfathersday… https://t.co/RPdXJsSE8p

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  • HE Simm Completes £19m MEP Shoreditch Redevelopment Project

    HE Simm has completed a £19m Mechanical, Electrical and Public Health (MEP) installation at a mixed-use development in the London district of Shoreditch. The work forms part of a London Borough of Hackney Education scheme which has seen an old school site on Nile Street developed as the ‘Makers’ – a mixed-used educational and residential Continue Reading