What should you improve first?
Answer a few questions about your home and budget for three practical priorities. Choose “I don't know” where you are unsure.
Have an EPC? Use it to answer
More about your home
Your first 3 steps
Priority 1
Set your heating controls
Use a timer, room thermostat and radiator valves to heat rooms only when needed. The saving shown is for turning the thermostat down from 22°C to 21°C.
Typical saving £120 a year
Heating controls and flow temperature →Priority 2
Draught-proof doors, windows and floors
Sealing gaps makes rooms comfortable at a lower temperature. The cost is for professional work; DIY is cheaper.
Typical cost £250Typical saving £55 a year
Draught-proofing →Priority 3
Check how much loft insulation you have
Look in the loft: less than about 100mm is worth topping up, an empty loft most of all.
Loft insulation →
Later, or with a bigger budget (2)
Find out what your walls are
Cavity walls can often be filled cheaply; solid walls need a bigger project. Your EPC or the brick pattern can tell you.
How to tell cavity from solid walls →Consider a heat pump when the heating is due for replacement
A grant can cover part of the cost in England, Wales and Scotland. Check suitability and running costs first.
Is my home suitable for a heat pump? →
Energy Saving Trust typical figures, not quotes. Savings overlap, so they are never added together. Your own saving depends on your home and energy prices. Checked 3 October 2026.