Passivhaus Insights


  • Piers Sadler Consulting is now DeltaQ
    A new name for our growing business
    Piers Sadler Consulting changed its name to DeltaQ on 25 May 2022. The new name reflects our recent growth and our ambition to become a brand associated with excellence in Passivhaus project delivery and policy advice.
  • Building Services
    10 tips for successful Passivhaus Schools
    Ensuring building services design and installation meets the exacting standards of Passivhaus is one of the most demanding aspects of Passivhaus school projects, so we have spent a lot of effort producing guidance documents for building services designers.