James meets Maggie, who is determined to decorate her 1930s house using eco-paints, whilst restoring and reusing the original features.
In Northampton, we meet Julie and her Dad, who with Dick's help, install a solar panel on the roof.
We return to the Keenans on the Wirral. The guest wing of their big eco-build is nearing completion. They get stuck in and learn how to use environmentally friendly lime plaster.
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Ready to Watch Its Not Easy Being Green, Season 2, Episode 4?