Home energy upgrade planner
Tell us about your property and we'll build a prioritised roadmap of energy improvements — ordered by value per pound spent — with estimated costs, annual savings, and any applicable grants.
How to improve your home's energy efficiency
Improving your home's EPC rating reduces energy bills and increases property value. The right order of improvements matters: insulating before upgrading the heating system means a smaller, cheaper heating unit can do the same job.
Start with the fabric first
The "fabric first" principle means sealing the building envelope before upgrading heating. Loft insulation, cavity wall insulation, and draught-proofing are typically the cheapest improvements per EPC point gained. They also reduce the size and cost of any heat pump or boiler needed.
Pre-1919 properties need specialist advice
Properties built before 1919 typically have solid walls rather than cavity walls. Standard cavity wall insulation does not apply. Solid wall insulation (internal or external) requires a specialist assessment — incorrectly applied insulation on a solid wall building can trap moisture and cause damp and structural damage.
The case for heat pumps in 2026
Heat pumps are 2–4× more efficient than gas boilers and qualify for the £7,500 Boiler Upgrade Scheme grant. They perform best in well-insulated homes. Running costs depend heavily on the electricity tariff — heat pump owners benefit significantly from Economy 7 or dedicated heat pump tariffs.