Coaction Training CIC | Passivhaus Training Provider UK

Practitioner-led Passivhaus training

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Learn from the UK's Passivhaus experts

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Proud to be official partners of the Passivhaus Trust.

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Training construction professionals to meet the climate emergency.

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Popular Passivhaus courses

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Certified Passivhaus Tradesperson

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In-person course: Building to Perform - Introduction

Join low-energy experts Coaction and SIGA on-site in High Wycombe for a dynamic, hands-on day exploring how construction professionals can deliver real building performance on site.

Published on 19/02/2026

Written by Tabitha Binding

New - Modular Certified Designer course!

Do you need a Passivhaus top up? We now offer our Certified Passivhaus Designer course as modules and there are PHI renewal points available too.

Published on 17/02/2026

Written by Tabitha Binding

Is Passivhaus Still Relevant?

With heat pumps and a decarbonising grid, is Passivhaus worth the extra effort?

Published on 08/01/2026

Written by Nick Grant

What our learners think

"I fully expect this course will benefit my practice hugely going forward and now feel ready to get back into this sector with a fresh set of knowledge and skills."

Stuart Clark
Director - Architect - Passivhaus Designer
Fifteen 10 Architects Ltd

"The Bitesize course is very helpful to reassess basic design approach to any project, small or large."

Alan McKay
Architect
Alan McKay Architect

"The breadth of learning was fantastic and have an overview of services design, construction practices and economics that I never expected. I would recommend it to anyone interested in sustainable architecture."

Matthew Wilkins
Architect & Sustainability Consultant
Kendall Kingscott

"The course have given me further confidence particularly in managing Retrofit projects and the importance of understanding building physics. Our next project is an EnerPHit which I feel much better prepared for and looking forward to it starting!"