It was only at the end of July 2016 that Bouygues Energies & Services was awarded the contract for the renovation of the historic Waldhaus Flims. The project is a prime example of an innovative end-to-end solution in building technology, above all because the sensitive building fabric and the façades, some of which are listed as protected, required a great deal of care. With regard to the building technology, the heating, ventilation, sanitation, cooling, electrical and fire alarm systems were replaced - a classic multitec project, as several Bouygues Energies & Services trades were involved in the work. The new ventilation systems now exceed the cantonal energy regulations thanks to integrated heat recovery. New IT infrastructures were also introduced, including an infotainment system with TV and a new building automation system. In addition to this, the individual hotel buildings will reduce their energy consumption and increase energy efficiency through the use of modern equipment and technology standards.