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Achieve an energy-efficient building with our insulated, airtight timber frames – capable of meeting and even exceeding the rigorous Passivhaus standard.

Your frame will be custom made for you to the exact specifications of your architectural plans, using the highest-performing airtightness materials.

A typical two-storey frame is erected on site in just a few days, giving you a weatherproof, airtight core built to stand the test of time.

As your partner in your build, we understand what you’re trying to achieve. We’ve been constructing highly energy-efficient buildings for many years, because it’s what we believe in. We take an artisan approach to every project, with several of our homes achieving Passivhaus certification – attesting to the quality of our materials and workmanship.

We’re proud that the first certified Passivhaus in Cumbria has our frame at its heart. One of our most recent Passivhaus projects achieved an airtightness result that was the second highest ever recorded in the UK.

Watch below as one of our frames is installed at a new-build Passivhaus in Cumbria >>

Trevor Lowis and his team at Eden Insulation worked with our architect to produce an outstandingly high-quality, accurate product that was delivered on time, erected efficiently on site and it has subsequently produced one of the best initial Passivhaus airtightness test results recorded. The timber frame fitted the foundation raft exactly. A week after erection, the windows fitted into the frame exactly. Everyone who has worked on the house has commented on the incredible quality of the product. We have also continued to receive useful support and advice from Eden Insulation. They genuinely care about their product and it shows.
Nicola & Daniel Albert, Self-builders

Your building

Find out whether our timber-panel frames are right for your build, and learn more about how a timber frame fits in with your overall build.


Our frames

The Eden Insulation team fabricating panels for their Passivhaus frames

Find out more about our timber frames – how we make them, the materials we use, quality assurance and meet our team.



An airtight insulated frame erected by Eden Insulation

See examples of the Passivhaus and other energy-efficient homes and buildings we’ve constructed in the past.

It’s been a huge breath of fresh air working with Trevor and his team at Eden Insulation. I’ve worked with some other timber frame fabricators in the past and it’s been a struggle to get them to understand building to a Passivhaus standard.

Eden Insulation have proficiency in Passivhaus detailing – from continuity of insulation and reducing cold bridges, through to minimising the frame factor and delivering a high level of airtightness.

Andrew Yeats, EcoArc - Certified Passivhaus designer