The core activity of TEN Plus Sagl is consulting and planning in the fields of energy efficiency, acoustics and building physics. Specifically, this includes: acoustic planning for buildings and rooms (e.g. sound insulation, acoustic measurements), energy efficiency consulting for buildings (e.g. thermal insulation, energy balances), building physical analyses and consulting (e.g. building envelopes, room climate), aerial photography and 3D modeling of buildings and terrain using drones, and supporting architects in the planning and realization of construction projects, particularly in complying with building regulations and optimizing energy efficiency and acoustics.