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

  • We are renowned as a high-rise MEP specialist. Not surprising when you look back at our experience from the last 5… https://t.co/u19vvrfTRW

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  • Our @MaggiesCentres campaign is off to a great start, with donations received from suppliers, colleagues & the proc… https://t.co/1TXMeNExOa

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  • HE Simm Pledges To Raise £30,000 For Maggies Cancer Centres

    HE Simm has set itself an 18-month target to raise £30,000 for a national cancer charity. The family-owned firm is throwing its fundraising weight behind Maggie’s Cancer Centres, with a focus on raising the money to support centres close to their regional hubs in Liverpool, Manchester and London. The charity, which builds its centres in Continue Reading