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 Bedfordshire and Bedfordshire, old units are removed with their refrigerant recovered by an F-gas certified engineer. We replace heat pumps in Bedfordshire whoever fitted the original system, including monobloc and split units. Every replacement in Bedfordshire starts with a fresh heat loss survey, not just a copy of the old unit's size.
Who it suits
- Systems that were undersized and struggle in cold weather
- Older units where parts are becoming hard to source
- Heat pumps nearing the end of their typical life with rising repair costs
- Oversized systems that short cycle and cost more to run than expected
Grants and rules for heat pumps in England
Homes in Bedfordshire can use the Boiler Upgrade Scheme, which takes £7,500 off the cost of an air source heat pump when it replaces fossil-fuel or electric heating. Replacing oil or LPG heating qualifies for £9,000 for installations from 21 July 2026 to 31 March 2027, and air-to-air systems for £2,500. The MCS-certified installer named in your quote applies for the grant and deducts it from the price.
Heat pump replacement prices in Bedfordshire
These are guide prices including VAT. The rate for your visit in Bedfordshire 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 | £6,100–£9,700 |
| Full system replacement, 2–3 bedroom terrace or semi | £10,700–£13,750 |
| Full system replacement, 3 bedroom semi or small detached | £12,250–£15,800 |
| Full system replacement, 4 bedroom detached | £14,300–£18,350 |
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 Bedfordshire
We cover 9 towns in Bedfordshire for heat pump replacement. Each links to local guide prices and the grant position for England.
| Town | Postcode district | Nearest town | Midwinter daylight |
|---|---|---|---|
| Luton | LU1 | Dunstable | 7 h 46 min |
| Bedford | MK40 | Kempston | 7 h 43 min |
| Dunstable | LU6 | Luton | 7 h 46 min |
| Leighton Buzzard | LU7 | Dunstable | 7 h 45 min |
| Ampthill | MK45 | Flitwick | 7 h 44 min |
| Kempston | MK42 | Bedford | 7 h 43 min |
| Biggleswade | SG18 | Sandy | 7 h 43 min |
| Flitwick | MK45 | Ampthill | 7 h 44 min |
| Sandy | SG19 | Biggleswade | 7 h 43 min |
Heat pump replacement questions
Will a new heat pump fit where the old one was?
Sometimes. A new unit may be a different size, weight or shape and may have different clearance requirements, so the existing base and position are checked at survey. The MCS noise assessment is carried out for the new unit, and a different position may be suggested if it improves performance or reduces sound at neighbouring windows.
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.
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.
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.