EPC Upgrade Savings Calculator
Instantly estimate your potential annual energy bill savings, carbon reduction, and payback period from common property EPC improvements.
Calculate Your Upgrade Savings
Enter your current energy costs and planned improvements below to get an instant, accurate estimate of your potential financial and environmental savings.
Savings Estimator
Enter your property details to see estimated savings
Average savings vary by property type and current efficiency
Leave as 0 if unknown. Used to calculate payback period.
Estimated Savings
Calculated based on average UK energy efficiency data
EPC Upgrade Reference Chart
Average estimated savings and typical costs for common Energy Performance Certificate (EPC) improvements in the UK.
| Upgrade Type | Est. Annual Savings | Typical Cost Range | Est. Payback Period |
|---|---|---|---|
| Loft Insulation (270mm) | £150 – £250 | £300 – £600 | 2 – 4 years |
| Cavity Wall Insulation | £150 – £300 | £500 – £1,500 | 3 – 5 years |
| New A-Rated Boiler | £100 – £200 | £2,000 – £3,500 | 10 – 15 years |
| Solar PV Panels (4kW) | £400 – £600 | £5,000 – £8,000 | 9 – 12 years |
| Double Glazing Upgrade | £50 – £100 | £3,000 – £6,000 | 15+ years |
EPC Upgrades FAQ
Everything you need to know about calculating savings and improving your property’s Energy Performance Certificate rating.
Savings vary by property and upgrade. On average, loft insulation can save 15% on heating bills, cavity wall insulation around 15%, a new A-rated boiler up to 10%, and solar PV panels can reduce electricity bills by up to 40%.
A good payback period for energy efficiency upgrades is typically between 5 to 10 years. Insulation measures often have the shortest payback periods (3-7 years), while renewable technologies like solar panels may take 8-12 years but offer higher long-term savings and carbon reduction.
Yes, research suggests that improving a property’s EPC rating can increase its market value by up to 14%, as buyers increasingly prioritise energy efficiency, lower running costs, and compliance with potential future rental regulations.
Yes, schemes like the Great British Insulation Scheme (GBIS), ECO4, and the Boiler Upgrade Scheme (BUS) offer significant grants or subsidies for eligible homeowners and landlords to improve their property’s EPC rating.