The core activity of CeO-Zwei Gebäudeanalysen is consulting and analyzing buildings and facilities with regard to energy efficiency and savings. This includes, among other things: building analysis and evaluation, energy concept creation, thermal imaging and thermography, air tightness measurement, creation of energy certificates and building energy certificates (GEAK), consulting for renovation, expansion, addition and conversion of buildings, and support in selecting companies and materials for energy-efficient renovations. The company positions itself as a neutral, product-independent specialist advisor and supports customers in optimizing their buildings and facilities in terms of energy efficiency and savings.