about usthe coldproof story

Retrofit and Passivhaus Expertise

ColdProof was founded by Eric Fewster, a Certified Passivhaus Consultant and trainer, as well as a Chartered Water and Environmental Manager and Chartered Environmentalist. Eric has been delivering low energy retrofit since 2008 when he tackled his own house. He is a member of the Passivhaus Trust, AECB, Superhomes Network, and is an approved trainer for the Coaction CIC Passivhaus contractor training.

Prior to his work in low energy retrofit, Eric worked in various humanitarian emergencies in Africa and Asia, helping to deliver clean water and sanitation. During this time he founded BushProof, an award-winning business based in Madagascar. More recently during the COVID-19 pandemic, Eric led a number of public health researchers to develop guidance on infection prevention and control for the UK’s care home sector in order to help stem the spread of coronavirus.

Eric Fewster, passivehaus specialist

Professional Memberships and Certifications

Certified Passivhaus Consultant
Chartered Environmentalist Logo
PassiveHaus Trust Member
AECB Logo
CIWEM Logo

Investing in the Future of Sustainable Building

We’re committed to addressing climate change and recognize the need for swift action. That’s why we reinvest 10% of our turnover to provide training in Passivhaus building principles for as many builders and site managers as we can. With 26 million homes in the UK in need of retrofitting and a shortage of skilled professionals in the building trades, every step makes a difference.

Eric Fewster teaching passivehaus, low carbon retrofit and renovation

Are you planning a Passivhaus Retrofit Project?