Good insulation and weatherization will also minimize your utility costs by optimizing the energy efficiency of your house via air sealing. Following the audit is complete, the WAP professionals can help weatherize your private home through measures like restoring and changing combustion appliances, insulating the walls and Home windows, etc. https://freeecogrants.co.uk/how-eco-grants-uk-can-help-you-to-upgrade-your-property/