Overview
- Both suppliers say sealing gaps around doors, windows and chimneys can save roughly £60–£80 a year.
- Thermal cameras can help locate heat loss, with free or low‑cost loans available from some local authorities and the Library of Things, while Octopus’s broader loan scheme is paused until 2026.
- Octopus reports it has sent nearly 5,000 cameras to customers in recent years and is prioritising limited loans this winter for those most in need.
- Professional thermal surveys typically cost about £300 for smaller homes and up to £750 for larger properties, according to consumer guidance cited in the reports.
- Low‑cost DIY steps include hand‑checking for draughts, making fabric excluders, and closing curtains before dark to reduce heat loss, with professional draught‑proofing costing a few hundred pounds.