Not every replacement is about age. Some heat pumps were sized by rule of thumb, paired with radiators that are too small or set up without weather compensation, leaving homes cold or bills high. Replacing the unit alone will not fix those problems, so we start with a fresh heat loss survey and check the radiators, pipework, cylinder and controls.
Across Fife and Fife, old units are removed with their refrigerant recovered by an F-gas certified engineer. Homes in Fife with a heat pump that never kept them warm can have the whole design checked before a new unit is chosen. Some of the earlier heat pumps in Fife are now reaching the age where replacement is worth considering.
Who it suits
- Oversized systems that short cycle and cost more to run than expected
- Older units where parts are becoming hard to source
- Units that have failed with a major fault, such as a compressor failure
- Heat pumps nearing the end of their typical life with rising repair costs
Grants and rules for heat pumps in Scotland
In Scotland, heat pump funding comes through Home Energy Scotland rather than the Boiler Upgrade Scheme: a grant of up to £7,500 (up to £1,500 extra for eligible rural and island homes) and an optional interest-free loan of up to £7,500. For a home in Fife, apply and receive the written offer before the installation date is fixed.
Heat pump replacement prices in Fife
These are guide prices including VAT. The rate for your visit in Fife is confirmed before we book it, and any repair is priced in writing before parts are ordered.
| Work | Installed guide price |
|---|---|
| Replacing an old outdoor unit like-for-like | £6,000–£9,500 |
| Full system replacement, 2–3 bedroom terrace or semi | £10,500–£13,500 |
| Full system replacement, 3 bedroom semi or small detached | £12,000–£15,500 |
| Full system replacement, 4 bedroom detached | £14,000–£18,000 |
Installed, inc VAT. Grant funding rarely applies to replacing a heat pump, so these prices are shown without any deduction; we check eligibility at survey.
Towns we cover in Fife
We cover 9 towns in Fife for heat pump replacement. Each links to local guide prices and the grant position for Scotland.
| Town | Postcode district | Nearest town | Midwinter daylight |
|---|---|---|---|
| Dunfermline | KY12 | Rosyth | 6 h 56 min |
| Kirkcaldy | KY2 | Burntisland | 6 h 55 min |
| Glenrothes | KY7 | Kirkcaldy | 6 h 54 min |
| Burntisland | KY3 | Kirkcaldy | 6 h 56 min |
| Cupar | KY15 | Leven | 6 h 52 min |
| Inverkeithing | KY11 | Rosyth | 6 h 56 min |
| Leven | KY8 | Glenrothes | 6 h 54 min |
| Rosyth | KY11 | Inverkeithing | 6 h 56 min |
| St Andrews | KY16 | Cupar | 6 h 52 min |
Heat pump replacement questions
How much does it cost to replace a heat pump?
Replacing an old outdoor unit like-for-like has a guide price of £6,000–£9,500, installed and including VAT. Re-sizing, a new cylinder, radiator upgrades or new controls add to that, and each is itemised in your written quote. The final price is fixed after a survey, once we know what the existing system needs.
Can I get a grant to replace my heat pump?
Usually not. In England and Wales, the Boiler Upgrade Scheme cannot normally fund a home that has already been funded for a heat pump, and it is aimed at replacing fossil-fuel or electric heating. Your circumstances may differ, so we check eligibility before quoting. In Scotland, check Home Energy Scotland's criteria. Northern Ireland has no dedicated grant at present.
What happens to my old heat pump?
The old outdoor unit is removed and disposed of responsibly. Its refrigerant is recovered first, which must be done by an F-gas certified engineer, and metals and components are recycled where facilities allow. If the old cylinder or controls are replaced too, they are removed at the same time, and pipework that is no longer needed is capped or taken out.
How long does an air source heat pump last?
Air source heat pumps typically last 15–20 years, depending on the quality of the original design, how hard the unit has worked, where it is sited and how well it has been serviced. Units that short cycle or run at high flow temperatures for years may wear sooner. Annual servicing helps components last and spots problems early.