Safe and Sound Control Systems - Trend Technology Centre (TTC) Our aim at Safe and Sound controls systems is to provide a complete service solution throughout the building services sector, from initial design of smaller controls systems through to full building management controls. Safe and Sound are leading experts in the application, design, installation and commissioning of leading edge technology now utilised within the building service sectors and management of these sectors. These vary from Trend Control Systems, TAC Satchwell Controls, Allen Martin, Window-master natural ventilation solutions, onto basic discreet stand-alone control systems. Safe and Sound controls Systems are accredited by several of the large UK wide manufacturers of BMS systems and have in all cases received continual ongoing training and support on these industry leading products. We are driven to provide a low energy, low carbon building environment for the commercial sectors, schools, offices and factories. We have a very broad blue chip portfolio that we are incredibly proud of.