Heating
Heat pump or boiler: what each costs to fit and to run in your home, the grants that apply, and the tariffs that cut the bill.
The short answer
- £10,000 to £14,500 installed for a 1 to 2 bed flat, up to £14,000 to £19,500 for a 5-bed detached house
- £7,500 grant for every house type in England and Wales, or £9,000 for oil or LPG homes until 31 March 2027
- £666 a year for a 3 bed semi on a heat pump tariff against £877 on gas, but more than gas on a standard tariff
Calculators
Heat Pump Cost CalculatorMost popular
Heat Pump Running CostsStandard and heat pump tariffs
Boiler vs Heat PumpSide-by-side comparisonNew Boiler Cost CalculatorCombi, system or regularGuides
Heat Pump Running Costs UK 2026Heat pump running costs for five UK homes: £424 to £1,070 a year on a heat pump tariff. A 3-bed semi pays £666, or £937 on a standard tariff, vs £877 gas.
Heat Pump Cost by House TypeInstalled prices from a flat to a 5 bed detached. A 3 bed semi costs £11,000 to £15,500, or £3,500 to £8,000 after the £7,500 grant, and about £666 a year to run.
Heat Pumps in Old HousesHeat pump in an old house: yes, it can work. A typical 3-bed costs about £12,700 installed, £5,200 after the £7,500 grant. Insulation and planning.
Heat Pump vs New Boiler: Which Is Cheaper?Replacing a gas boiler with a heat pump costs £3,500 to £8,000 after the £7,500 grant for a 3-bed semi. 15-year costs against a new boiler, by tariff.
Heat Pump Noise: How Loud Are They Really?Heat pumps must pass a 37 dB(A) noise test at a neighbour's window in England and Wales. How the test works, what affects noise and how to reduce it.
Radiator Sizing for Heat PumpsRadiator sizing for heat pumps: at 41 to 45°C a radiator's rating must be about 3.1 times the room's heat loss. How to check yours and what to replace.
Heat Pump Cost for a 3-Bed SemiA heat pump for a 3-bed semi costs £11,000 to £15,500 installed, or £3,500 to £8,000 after the £7,500 grant. 2026 sizes, models and running costs.
3-Bed House Heat Pump CostHeat pump for a 3 bed house: £10,500 to £15,500 installed, £3,000 to £8,000 after the £7,500 grant, by semi, detached, terrace or bungalow.
Heat Pump Cost for a 2-Bed TerraceA heat pump for a 2-bed terrace costs £10,000 to £14,000 installed, or £2,500 to £6,500 after the £7,500 grant. Sizing, yard placement and running costs.
Heat Pump Cost for a 3-Bed End Terrace UK 2026A heat pump for a 3-bed end terrace typically costs £11,000 to £15,500 installed, £3,500 to £8,000 after the £7,500 grant. Size and running costs.
Heat Pump Cost for a 3-Bed Detached HouseA heat pump for a 3-bed detached house costs £11,000 to £15,500 installed, or £3,500 to £8,000 after the £7,500 grant. 2026 sizing, oil and running costs.
Heat Pump Cost for a 5-Bed HouseA heat pump for a 5-bed house costs £14,000 to £19,500 installed, or £6,500 to £12,000 after the £7,500 grant. Sizing, cascades and running costs.
Heat Pump Cost for a BungalowA heat pump for a 2 or 3 bed bungalow typically costs £10,500 to £15,500 installed, £3,000 to £8,000 after the £7,500 grant. Sizes and running costs.
Heat Pump Cost for a 2-Bed Bungalow UK 2026A heat pump for a 2-bed bungalow costs £10,500 to £15,000 installed, or £3,000 to £7,500 after the £7,500 grant. Sizing, loft insulation and running costs.
Heat Pump for a Victorian TerraceHeat pump for a Victorian terrace: about £12,200 to £12,700 installed, £4,700 to £5,200 after the £7,500 grant. Sizing, insulation order and placement.
Heat Pump for a 1960s House UK 2026Heat pump for a 1960s house: about £12,700 installed for a typical 3-bed semi, £5,200 after the £7,500 grant. What filling the cavity walls changes.
Heat Pump Cost for a 4-Bed HouseA heat pump for a 4-bed house costs £12,500 to £18,000 installed, or £5,000 to £10,500 after the £7,500 grant. 2026 prices, sizing and running costs.
Storage Heaters vs Heat PumpStorage heaters cost about £146 a month to heat a 3-bed semi on Economy 7, or £1,752 a year; a heat pump on a heat pump tariff about £56 a month. Savings and payback.
Heat Pumps in FlatsHeat pump for a flat: often possible. About £11,500 to £12,200 installed, £4,000 to £4,700 after the £7,500 grant. Freeholder, planning and noise rules.What Size Heat Pump Do I Need?Typical heat pump size for every UK home: about 9 kW for a 3 bed semi and 12 kW for a 4 bed detached, by insulation, with what each size costs installed.Heat Pump Cost for a 3-Bed Mid-Terrace3 bed mid-terrace heat pump: £10,500 to £15,000 installed, £3,000 to £7,500 after the £7,500 grant. Typical size, running costs and what to check first.Heat Pump for a 1930s Semi1930s semi heat pump: £11,000 to £15,500 installed, £3,500 to £8,000 after the £7,500 grant. Typical size, running costs and what to check first.
Heat Pumps by CouncilHow many heat pump grants have been paid in every council area of England and Wales, per 10,000 households, on a map. Find your council.Boiler Upgrade Scheme GuideBoiler Upgrade Scheme 2026: £7,500 off a heat pump, or £9,000 for oil or LPG homes off the gas grid until 31 March 2027. Who qualifies and how to apply.
Boiler Grants 2026Boiler grants 2026: ECO4 can replace a boiler for households on benefits until 31 December 2026. The £7,500 Boiler Upgrade Scheme is for heat pumps only.Combi vs System BoilerCombi vs system boiler: which suits your home and hot water use, and regular boilers and heat pump plans. A like-for-like swap costs £1,800 to £3,500.What Size Boiler Do I Need?What size boiler do I need? A combi of 24 to 27 kW for 1 to 2 bedrooms, 28 to 34 kW for 3 to 4; system boilers 9 to 18 kW and 18 to 26 kW. Why oversizing costs more.
Boiler Prices by BrandBoiler prices by brand: combi boilers from £1,000 to £3,700 across six makes in one installer's ranges, and maker guarantees of up to 12 years with conditions.