Before we retrofit your house, our Smart Retrofit metering technology determines a baseline for the current real energy efficiency of your home. After the retrofit we repeat the process and determine how much more energy efficient your home has become.
For our Smart Retrofit offer, if you currently have no roof insulation, then we will guarantee you a minimum energy efficiency improvement of 15% to your home's heat demand.
If the Smart Retrofit metering technology determines that we have not delivered the promised energy efficiency improvement then you get a rebate on the cost of the works, equivalent to the underperformance.
As an example if we guarantee a 15% energy efficiency improvement and only deliver a 10% improvement or 1/3 less savings that promised, you would receive a rebate of 1/3 on the cost of the works.