For me detailed information on the Passivhaus windows we supply and install with our houses please see:
http://www.optiwin.net/

The Profin windows from Finland are also good quality, which we can supply with our frames:
http://www.profin.fi/eng/index.php

The Passivhaus foundation system from Scandinavian foundations is an excellent way to improve the thermal performance of your building. We are partners with the company and recommend their use on our timber frames. Please see their site for more detailed information on how the system works:
http://www.scandinavianfoundations.co.uk/

Please see the Passivhaus UK site for more detailed information on the Passivhaus approach to building design:
http://www.passivhaus.org.uk/

Green electricity? Ecotricity are investing heavily in wind energy, which is why we use and recommend them!
http://www.ecotricity.co.uk/

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