UK energy bills rose 6.4% in April 2025, adding £159 to annual household costs. With stricter EPC rules and carbon targets on the horizon, energy upgrades are no longer optional. From £7,500 heat pump grants to 0% VAT on solar panels, homeowners now have clear incentives to act. This guide breaks down the smartest energy-saving improvements in 2025, from conservatory insulation and triple glazing to loft insulation and smart thermostats. Learn how to slash bills, boost property value, and stay compliant in a fast-changing market.