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Logo Passivhaus Institut

The independent institute for outstanding energy efficiency in buildings

A Passivhaus is a building in which thermal comfort can be achieved solely by post-heating or post-cooling the fresh air flow required for a good indoor air quality, without the need for additional recirculation of air.” – Passivhaus Institut (PHI)

Why Passivhaus?

The Passive House (Passivhaus) concept was born in Germany.  New builds can achieve a 75% reduction in space heating requirements, compared to standard practice. The Passivhaus standard moves in the right direction of achieving 80% carbon reductions that is the legislative target for the UK Government.

We can also achieve similar savings in space heating requirements for retrofit projects


Passivhaus certification provides a rigorous quality assurance process verified via independent testing. Certification is available for buildings, specific components, Designers/ Consultants & Tradespeople.



Our Director, Rick, is currently undergoing training to be Certified as a Passivhaus Tradesperson, which will  include study in;

  • Theory of Passivhaus
  • Construction techniques – insulation, glazing, airtightness, thermal bridging and ventilation
  • How to ensure site quality