HBI – Your Partner for Tunnel Ventilation

HBI Haerter offers specialised engineering services. Our services focus on the design, planning and implementation of projects in the fields of tunnel ventilation, air-quality studies, risk analysis and safety issues as well as the aerodynamics and thermodynamics of road and rail tunnels and other underground facilities. HBI offers the entire range of services related to a tunnelling project – from first feasibility studies to final acceptance tests including detail studies, project realisation, site supervision and measurements. HBI also has wide experience with refurbishment and optimisation of operations. 

With more than 1000 successful reference objects, HBI is an internationally leading consultant specialized in tunnel ventilation and related services. Quality, innovation and reliability characterize the services of HBI. We operate as specialised technical consultants and cooperate with various companies in different project organisations.