Energy Performance
EPC Impact Calculator
See how improving your EPC rating affects property value, mortgage lending, and energy costs. Includes upgrade measures and costs.
£
Value Uplift
+£31,579
+10.5%
Extra Borrowing
+£40,263
LTV: 75% → 80%
Energy Costs
Current (E)£2,100/yr
After upgrade (C)£1,200/yr
Annual saving£900/yr
Upgrade Measures
Condensing boiler
£2,500–£4,000
Replace old boiler with A-rated condensing boiler
Saves ~£300/yr
Double glazing
£3,000–£7,000
Replace single-glazed windows
Saves ~£200/yr
Solar panels (4kW)
£5,000–£8,000
Roof-mounted PV panels
Saves ~£400/yr
Underfloor insulation
£500–£1,500
Insulate suspended timber floor
Saves ~£100/yr
Smart heating controls
£200–£500
Programmable thermostat, TRVs
Saves ~£80/yr
Total upgrade cost£11,200–£21,000
Payback from value uplift: ~0.5 years
Meets minimum EPC E standard for rental properties
Pro: premium metrics
Grant eligibility
£5,000
Contractor quotes
3 local
Full EPC report
Ready
Premium PDF export
Branded
Estimate, for education only. This is an estimate for educational purposes, not professional or financial advice. EPC value impacts are based on industry research averages. Actual impact varies by property and local market. Upgrade costs are approximate.