Home Heat Pump Guide

Heat Pump Cost by Property Type UK 2026

A ground-floor flat might pay nothing after the £7,500 BUS grant, while a large detached house could face £7,500-£14,500. The cost of a heat pump varies dramatically by property type -- from £6,000 for a small flat to £22,000+ for a large detached. This guide breaks down exactly what each property type should expect to pay.

By Home Heat Pump Guide Published: 18 March 2026 14 min read
UK semi-detached houses representing the most common property type for heat pump installations
Heat pump costs vary significantly by property type -- understanding why helps you budget accurately

For detailed pricing for specific property sizes, see our guides on 2-bed flat costs, 3-bed semi costs, and 4-bed detached costs.

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Cost Overview Table

Property TypeBefore GrantAfter Grant
Ground-floor flat (1-2 bed)£6,000-£9,000£0-£1,500
Upper-floor flat (1-2 bed)£7,500-£11,000£0-£3,500
Terraced house (2-3 bed)£8,000-£11,000£500-£3,500
Semi-detached (3 bed)£10,000-£14,000£2,500-£6,500
Detached (3-4 bed)£12,000-£17,000£4,500-£9,500
Large detached (5+ bed)£15,000-£22,000£7,500-£14,500
Bungalow (2-3 bed)£9,000-£13,000£1,500-£5,500

All prices for air source heat pumps. Ground source adds £8,000-£15,000. Full details in our cost guide.

Flats

UK apartment block where ground-floor flats can achieve zero-cost heat pump installations after grant
Ground-floor flats are often the cheapest for heat pump installation -- many are fully covered by the grant

Ground-floor flats benefit from low heat demand, small systems, and short pipework runs. Upper-floor flats need longer pipe runs and may face leasehold restrictions. For detailed flat-specific guidance, see our 2-bed flat cost guide.

Terraced Houses

Sandwiched between neighbours, terraced houses have moderate heat demand. Mid-terrace properties have no side access, so the outdoor unit goes in the front or back garden. After grant: £500-£3,500.

Semi-Detached Houses

Britain's most common property type and the benchmark for heat pump costs. Most have side access for the outdoor unit. After grant: £2,500-£6,500. See our 3-bed semi cost guide.

Detached Houses

Four exposed walls mean higher heat demand and larger systems. Plenty of garden space makes placement easy. After grant: £4,500-£9,500. See our 4-bed detached cost guide. For very large properties, consider ground source heat pumps.

UK detached house with heat pump installed showing ample garden space for the outdoor unit
Detached houses have the highest installation costs but also the largest absolute savings potential

Bungalows

Excellent for heat pumps -- single-storey design simplifies pipework and ground-level access is ideal. Larger roof area relative to floor area increases heat demand slightly. After grant: £1,500-£5,500.

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What Affects Cost Within Each Property Type

Insulation quality, existing radiator sizes (see our radiator guide), current heating system type, accessibility, and electrical supply condition. Two identical-looking semis can have very different installation costs.

Properties with solar panels or suitable roofs for solar benefit from reduced electricity costs alongside the heat pump.

UK bungalow exterior showing ideal ground-level access for heat pump installation
Bungalows offer simplified installation with all pipework on one level and easy outdoor unit access

Frequently Asked Questions

Which property type is cheapest for a heat pump?

Ground-floor flats and small terraced houses. After the BUS grant, these can cost nothing.

Is my house too big for a heat pump?

No UK home is too big. The technology scales to any size.

Does house age affect heat pump cost?

Yes. Older properties may need more work, but insulation improvements bring costs down.

Is a bungalow suitable?

Bungalows are excellent for heat pumps.

Do I need different sizes for different house types?

Yes. Use our calculator for an initial estimate.

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About this guide: This article compares heat pump costs across all UK property types. The BUS grant of £7,500 makes installations affordable across the board, with smaller properties potentially paying nothing. Combining with solar energy further improves the economics for all property types.