EPC rating E
SAP score 39–54. The current legal minimum for letting. Nothing to spare.
What band E means
Band E covers SAP scores from 39 to 54. Heat escapes quickly, and bills are high for the comfort delivered.
Typical properties
Older solid wall homes with an ageing boiler, or properties heated by electric storage heaters.
Quotes for the work
Heating is usually the single biggest item on a band E property. Insulation comes first, but a quote tells you what the heating step would cost.
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Getting from band E to band C
Worked from a SAP score of 47, in the middle of band E, for an average sized property with nothing done yet. Cheapest measures first.
| Measure | Cost | Score after |
|---|---|---|
| Hot water cylinder insulation | £20–£60 | 49 |
| Loft insulation to 270 mm | £100–£350 | 53 |
| Low energy lighting throughout | £25–£90 | 54 |
| Cavity wall insulation | £600–£1,800 | 63 |
| Heating controls and TRVs | £350–£900 | 66 |
| Condensing gas boiler | £2,200–£3,600 | 74 |
About £3,295 to £6,800 in total. Use the upgrade cost calculator for your own score.
Common questions
Can I sell a property with an EPC rating of E?
Yes. There is no minimum band for selling in England & Wales — you only need a valid certificate before the property is marketed.
Can I let a property with an EPC rating of E?
Yes, today. From 1 October 2030 the minimum for a private rented home rises to band C.
How do I improve the rating?
Insulation first, then heating and controls, then generation. Cheap measures such as loft insulation and cylinder insulation buy SAP points for a fraction of the cost of new windows or a heat pump.