About

fourwalls is an independent building performance company founded by Ian Mawditt. We are based in Bristol, but operate nationally, working with individual householders all the way through to large corporations and government.

We offer support and knowledge necessary to help understand and improve energy use in buildings without impacting on comfort and health. We do this through:

  • Providing technical expertise, based upon a broad-range of experience in the field of building performance
  • Discovering insights in buildings and related energy issues, and develop strategies to help improve energy performance
  • Developing tools to help close the performance gap
  • Help organisations and individuals to realise their building’s long-term potential
  • Feedback to stakeholders involved with the building’s design and delivery to ensure lessons are learned.

We can help you to:

  • Save energy
  • Target long-term improvements
  • Improve occupant comfort
  • Reduce costs

Our goals are to:

  • Effect positive change in building practices and standards
  • Help close the performance gap between the predicted and actual energy use
  • Ensure the built environment is a healthy place for people.

We are pleased to be an associate of the National Energy Foundation, and members of the Good Homes Alliance and the Passivhaus Trust.

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