Technical Due Diligence

As engineers of building services we see ourselves as a link of a multidisciplinary team with due diligence. Our expertise as a short-check or as a comprehensive technical due diligence brings both individuality and informed planning and decision making in the field of technical building equipment. With appropriate tools and introduction of standardized processes, we work quickly, effectively and with precision. Our long experience is the basis for this. We provide you with an independent assessment of the technology and your energy supply. We reveal opportunities and risk potentials. We develop priority-based measure catalogs with cost calculations and make recommendations for modernization.

The performance of the Technical Due Diligence (TDD)

TDD Short Check

  • inspection and examination of selected parts of the building
  • photo documentation of essential technology
  • general description of the condition of building services and approximate assessment of the overall condition
  • assessment of risks and suspicious facts
  • geothermal association, Bundesverband Geothermie e.V.
  • functionality
  • notes concerning efficiency 
  • summary of the assessment

Object inspection and examination for a basic judgement of the technical building equipment.


  • testing and evaluation of the relevant plans and documents
  • intensive inspection of the parts of buildings and premises
  • extensive photographic documentation of the technology, features and defects
  • detailed and comprehensive status description of the technical equipment
  • identification of defects and financial estimation
  • operating costs Check
  • assessment of building and planning legal basics
  • profitability analysis
  • recommendations for Action

Detailed technical analysis and assessment of all the technical and economic criteria.