#CavityWallInsulation #CavityWallInsulationfailure #CavityWallInsulationextraction #OSCAROnsiteCavity Wall insulationWebsite:https://oscaronsite.co.uk/InstallersUK (in liquidation) took out good cavity wall insulation and installed new cavity wall insulation and claimed ECO4 funding arranged by City Energy Network Ltd who are also named on the guar