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.
Every replacement in Herefordshire starts with a fresh heat loss survey, not just a copy of the old unit's size. Some of the earlier heat pumps in Herefordshire are now reaching the age where replacement is worth considering. New outdoor units in Herefordshire may differ in size from the old one, so the base and position are checked at survey.
Who it suits
- Systems that were undersized and struggle in cold weather
- Heat pumps nearing the end of their typical life with rising repair costs
- Units that have failed with a major fault, such as a compressor failure
- Older units where parts are becoming hard to source
Grants and rules for heat pumps in England
In England the Boiler Upgrade Scheme gives £7,500 towards an air source heat pump (£9,000 if it replaces oil or LPG, from 21 July 2026 to 31 March 2027), and since 28 April 2026 a valid EPC is no longer needed. The grant is applied for by the MCS-certified installer and shown as a deduction on your quote.
Heat pump replacement prices in Herefordshire
Guide prices for Herefordshire, including VAT. We agree the visit rate before anyone attends, so there are no surprises on the day.
| 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 Herefordshire
We cover 5 towns in Herefordshire for heat pump replacement. Each links to local guide prices and the grant position for England.
| Town | Postcode district | Nearest town | Midwinter daylight |
|---|---|---|---|
| Hereford | HR1 | Ross-on-Wye | 7 h 44 min |
| Kington | HR5 | Leominster | 7 h 42 min |
| Ledbury | HR8 | Malvern | 7 h 44 min |
| Leominster | HR6 | Tenbury Wells | 7 h 42 min |
| Ross-on-Wye | HR9 | Ledbury | 7 h 45 min |
Heat pump replacement questions
Can I replace just the outdoor unit?
Often, yes, if the rest of the system is sound and correctly designed. The cylinder, controls and radiators can stay where they are compatible with the new unit. Some older cylinders and controllers do not work with a new heat pump, and the survey checks this. If the original design was the problem, replacing only the unit will not fix it.
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.
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.
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.