Building physics meets building biology.
Warm Walls is made by Planet A — a Cornwall-based research and development company applying building science to the UK's hardest-to-treat homes, and an Octopus Energy Zero Bills accredited partner.
Old buildings deserve a modern answer.
Millions of solid-wall homes are written off as too difficult to insulate — left cold, damp and expensive to run. We started Planet A to change that: to give traditional buildings a deep fabric upgrade that respects how they were built to work.
Our patent-pending Warm Walls system, field-validated with Verto Homes, makes these homes heat-pump-ready and puts Octopus Zero Bills within reach for housing that conventional retrofit can't touch.
Two founders, one wall — science and delivery under one roof.
Amanda Forman
Leads commercialisation, EPC assessment and delivery. A Certified Passive House Designer with an MSc in Architecture, DEA Level 3 and PAS 2030 — and 15 years building her own businesses.
Dr David Parish
Leads the science and system design. A PhD in Renewable Energy with 40+ years across mechanical, electrical and product engineering — and principal author of the Warm Walls performance study.
Qualified to assess, certify and install — to recognised standards.
PAS 2030 Retrofit Assessor · DEA Level 3 · ABBE Level 3 (Older & Traditional Buildings) · Certified Passive House Designer · Passivhaus Trust member · Octopus Energy Zero Bills accredited.
