EFI (Energy foam insulation) is approved company that dedicates to energy saving solutions in London, UK. EFI commits guarantee to minimize your utility bills of heating and cooling like your fan, AC, fridge etc. Classic Spray Foam Insulation is a type of insulation that is done by ICYNENE offered by EFI. We work Eco friendly as well as cost effective. We have an experienced and managed team that works with the latest technology.