Free EPC Upgrade Cost Estimator
Pick your current EPC band, property type and floor area. The tool returns the measures needed to reach EPC C, indicative cost ranges per measure, and which government grants apply. Pure browser maths, no sign-up.
Total upgrade budget
From current EPC D
EPC D
To target
EPC C
Estimated total spend
£1,058 - £2,034
Before any applicable grants. Ranges from Energy Saving Trust averages, scaled for property type and your floor area of 85 sqm.
Measures, ranked by typical install order
Loft insulation (top up to 270mm)
Cheapest single measure for most pre-1990 properties. Reduces heat loss through the roof and is mandatory in many ECO4 application paths.
Estimated
£590 - £1,045
ECO4 grants available for low-income households and homes below EPC D.Low-energy lighting throughout
Replace any remaining halogen or incandescent bulbs with LED. Trivial cost, small uplift.
Estimated
£118 - £239
Smart heating controls (TRVs + thermostat)
Cheapest band-uplift trick on most properties. TRVs on every radiator plus a learning thermostat.
Estimated
£350 - £750
What this tool tells you
- Which measures get you to EPC C. Based on the typical stack of insulation, glazing, heating and renewables that lift an EPC into the C band.
- Indicative cost ranges per measure. Sourced from the Energy Saving Trust's published per-measure averages, scaled by property type multiplier and your floor area.
- Which government grants apply. Boiler Upgrade Scheme (BUS) for heat pumps, ECO4 for low-income households or properties below EPC D.
Get the full picture on the property
Our property report includes the existing EPC, the recommended measures with predicted ratings, council tax, flood risk and more, for any UK address. From £9.99.
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