Energy saving products

Loft and roof insulation: Keeping heat contained within a property increases energy efficiency and reduces heating bills. In an uninsulated home, up to 25% of heat is lost through the roof - and that includes flat roofs!  Costs start from £400, saving up to £55 per year on energy bills, and up to 610kg of carbon each year. This puts the payback period at around 7 years. 

Cavity wall insulation: Post-1930s homes usually have cavity walls, which can be filled with insulation to reduce heat loss. Costs range from £395 to £1800, and can save up to £475 per year on energy bills, as well as up to 1500kg of carbon. The payback period is approximately 3 years.

Solid wall insulation: Where no cavity is available, walls can be insulated internally or externally. Costs range from £8500 to £12000, saving up to £708 per year on energy bills, and up to 1490kg of carbon, with a 12 year payback.

Energy efficient windows and doors: Energy efficient glazing and high thermal performance doors reduce heat loss and draughts. Costs start from £6000, saving up to £210 a year on energy bills, and around 405kg of carbon. This puts the payback period at around 28 years.

Boiler upgrade: Replacing an older boiler with a high-efficiency model saves energy. Costs start from £2750, with energy bill savings of up to £445 per year, and up to 1220kg of carbon, with a 6 year payback period.