Heat pump or gas?

What really makes more financial sense in 2025?

In 2025, more and more UK homeowners are weighing up whether to stick with gas heating or switch to a modern heat pump. The differences are significant — not only in running costs, but also in comfort, environmental impact and the future potential to upgrade or expand the system. Heat pumps are gaining a clear advantage year after year, as they are cheaper to run, safer to use, and far more resilient to rising energy prices. Unlike gas systems, they produce no on-site emissions, operate automatically, and deliver stable, reliable heating throughout the entire year.

Heating costs with a heat pump can be tens of percent lower than with gas — especially in well-insulated homes or when combined with underfloor heating. Gas is becoming increasingly expensive, with prices driven by global markets — making household heating costs harder to predict and control. A heat pump works differently: it uses a small amount of electricity and extracts the remaining heat from the air, resulting in predictable and stable running costs. This makes a heat pump a highly future-proof solution — and, quite literally, one that is insulated from gas price increases.

It’s also worth highlighting that heat pumps operate quietly, require minimal maintenance, and do not need chimneys, gas safety inspections, or pose any risk of gas leaks. They also allow for further home upgrades — such as integration with solar PV systems, which can reduce energy bills even further. Gas still has its place, but mainly in older systems where modernisation is difficult or impractical. However, for anyone building a new home or planning a full heating system upgrade, a heat pump is the clear winner in 2025 — across every key metric.