Independent surveys have been commissioned by the Welsh Government to determine the cause of any reported failure of Warm Homes Programme measures.
Mae Llywodraeth Cymru wedi comisiynu arolygon annibynnol er mwyn canfod achos unrhyw fethiannau y rhoddwyd gwybod amdanynt mewn perthynas â mesurau'r Rhaglen Cartrefi Clyd.