Ten easy ways to improve your EPC rating
Get loft insulation – ensure it is at least 270 mm thick
If you have gas radiators add thermostatic valves
Insulate your hot water tank
Add some draught-proofing
Install energy-efficient lighting
Include a smart meter
Replace an old boiler with an energy-efficient model
Install double (or triple glazing)
Add cavity wall insulation (if there are two layers of brick in the outside walls)
Add solar panels.