Integrated Environmental Installation (IEI) is the specialist arm of the Kier Group, delivering integrated design and installation solutions for mechanical and electrical building services. Through commitment to building effective relationships with clients, IEI has a proven track record for successfully delivering engineering services to the industrial, aviation, retail, leisure, education, healthcare, pharmaceutical and commercial sectors. By taking total responsibility for the performance of clients’ building services engineering, the IEI team is able to provide a service that is second to none.



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