They came, they saw, they sprayed. We had debated sheet insulation but it doesn’t give full insulation coverage. We also pondered doing it ourselves but the raw materials (whatever the magic juice that creates the foam is) is pretty spenny and there is a high risk that you would get the settings wrong and jizz half of it on the floor by accident before having insulted anything. So a couple of nice chaps came from margate to do the job. And now it’s all ready for the panelling to go on. Magic.