This can be a tax credit method which will pay back to insulate your Principal home, if you are a US citizen. Under the EERE system, you could receive a tax credit score of approximately $one,500 USD, or about 30 % of the quantity you paid to insulate and weatherize https://freeecogrants.co.uk/how-can-you-have-free-external-wall-insulation-done-to-your-property/