- Area
- Bedfordshire
- Postcode district
- MK42
- Nation
- England
- Guide price
- From £9,700 inc VAT
- Survey
- Free for installation enquiries
Before you book: replacing an oil or LPG boiler with a heat pump in Kempston
Every property in Kempston is different, so the design starts from measurements rather than a rule of thumb. That keeps the system the right size and the running costs predictable.
Bungalows and detached houses near Kempston running on LPG can move to a heat pump, with the tank collected by the supplier. If your home near Kempston is off the mains gas grid, a heat pump removes the need for oil or LPG deliveries.
Off-gas homes have a lot to plan when switching to a heat pump: the fuel tank, older walls, rural power supplies and higher heat loss.
- Rural and village homes off the mains gas grid
- Owners tired of fuel deliveries and tank maintenance
- Detached houses and bungalows with garden space for the unit
What's included
- MCS certificate and grant application in England and Wales where eligible
- Help arranging LPG tank collection with your supplier
- Outdoor unit, heat pump cylinder, controls and radiator changes
- Free survey with a detailed heat loss calculation for older construction
- Removal of the oil or LPG boiler and flue
For homes outside Kempston reached by a long drive or narrow lane, delivery of the unit and cylinder is planned in advance.
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 Kempston quote.
Installing heat pumps is zero-rated for VAT across the UK until 31 March 2027. Since 29 May 2025, permitted development in England allows up to two air source heat pumps on a house, each up to 1.5 m³, with no blanket 1 m boundary rule — the installation must still meet the MCS planning standards, including the noise check. Listed buildings, flats and some conservation-area positions need extra consent, which we check at survey.
Oil and LPG boiler replacement costs around Kempston
Guide prices for Kempston and the rest of Bedfordshire are shown below, installed and inc VAT. We publish ranges rather than a single figure because design details move the price, and the written quote after survey fixes it.
| Home | Typical size | Installed guide price | After £9,000 grant |
|---|---|---|---|
| 1–2 bedroom flat or small terrace | 4–5 kW | £9,700–£12,750 | £700–£3,750 |
| 2–3 bedroom terrace or semi | 5–7 kW | £10,700–£13,750 | £1,700–£4,750 |
| 3 bedroom semi or small detached | 6–9 kW | £12,250–£15,800 | £3,250–£6,800 |
| 4 bedroom detached | 8–12 kW | £14,300–£18,350 | £5,300–£9,350 |
| 5+ bedroom or larger older house | 11–16 kW | £16,850–£22,950 | £7,850–£13,950 |
Installed, inc VAT: unit, cylinder, controls, minor pipework and commissioning. The £9,000 Boiler Upgrade Scheme figure applies to oil and LPG replacements in England and Wales installed from 21 July 2026 to 31 March 2027.
How long is the heating season in Kempston?
On the shortest day Kempston gets about 7 hours 43 minutes of daylight, with the noon sun around 14° up. The heating season runs from autumn into spring, so a heat pump that is sized correctly and set up with weather compensation does most of its work in steady, cool conditions.
How installation works in Kempston
- Send your postcode and a few details, or use the guide price tool.
- A surveyor visits your Kempston home, measures every room and checks where the outdoor unit can go.
- You receive a heat loss design and a fixed written quote, with any grant shown where it applies.
- Installers fit the unit, cylinder and any radiator changes, typically over 2–4 days on site.
- The system is commissioned, set up with weather compensation and handed over with the paperwork.
Replacing an oil or LPG boiler with a heat pump in Kempston: questions
Can you service a heat pump in Kempston that someone else installed?
Yes. We arrange servicing and repairs for most air source heat pumps in Kempston, whoever fitted them. Tell us the make and model when you book.
How soon can you survey a home in Kempston?
Survey dates depend on how busy installers are in Bedfordshire. We offer the next available dates when you enquire and confirm them in writing.
How long does installation take in Kempston?
Most installations take 2–4 days on site. Jobs with several radiator changes or new pipework take longer, and your quote for a Kempston home states the expected time.
Is a heat pump cheaper to run than oil?
It depends on oil prices, your home's insulation, the flow temperature and your electricity tariff, so there is no single answer. At the October to December 2026 price cap, a heat pump with a seasonal efficiency of 3.0 delivers heat for about 8.8p per kWh, and at 3.5 about 7.5p. Compare that with your oil cost per kWh of heat, allowing for your boiler's efficiency; the survey estimate gives a figure for your home.
Can a heat pump cope with an exposed rural spot?
Yes. Air source heat pumps are designed to keep working well below freezing, and they periodically defrost, giving off a little vapour, which is normal. In exposed locations the installer chooses a sheltered position where possible, raises the unit to clear snow and let defrost water drain, and sizes the system for the local winter design temperature used in the heat loss calculation.