Energy Class Upgrade — What does each measure get you?
See how insulation, new windows, a heat pump and a solar water heater change your home’s energy class, what each measure costs and how much you save every year.
Choose measures
Want to dig deeper? Try the Heat Pump Calculator and the Solar PV Calculator for a more precise figure per measure.
Frequently asked questions
Is this an official EPC?
No — it is an indicative class estimate based on benchmark values. The official Energy Performance Certificate is issued by a certified energy inspector and is included in our services.
Which measure has the best cost/benefit ratio?
Usually roof insulation (low cost, ~15% reduction) and the heat pump. External wall insulation delivers the biggest absolute gain in pre-1980 buildings. The tool shows the ranking for your home.
Do I need to reach a specific class for Exoikonomo?
The programmes usually require an upgrade of at least 3 classes or reaching a minimum class. We confirm this for your case during the free eligibility check.