Heat pump costs in Portsmouth (2026)
A typical installation costs £8,400 to £17,300 in Portsmouth. Labour rates across the South East sit 5–15% above the UK average, highest in the London commuter belt.Here's what to expect by property type, and how to pay less.
Heat pump costs in Portsmouth at a glance
| Type | From | To |
|---|---|---|
| Air-source heat pump (ASHP) | £8,400 | £17,300 |
| Ground-source heat pump (GSHP) | £15,800 | £40,300 |
| Underfloor heating add-on | +£3,200 | +£9,200 |
| Grant support | £-7,500 | £-7,500 |
Indicative 2026 ranges adjusted for the South East, calibrated against MCS regional installation cost data and Ofgem grant-scheme averages. Always compare multiple quotes — prices vary by installer and property.
Costs by property type in Portsmouth
Terraced and smaller homes
A compact air-source unit for a 2–3 bedroom home costs around £8,400 to £12,600 in Portsmouth before grants. Outdoor unit placement matters in tight terraces; an installer survey confirms noise distances and pipe runs.
Semi-detached houses
A typical 3-bed semi needs a mid-size air-source heat pump, around £9,500 to £14,900 in Portsmouth before grants. Budget extra if radiators need upsizing for lower flow temperatures.
Detached houses
Larger detached homes need bigger air-source units (£11,600 to £17,300 in Portsmouth) or, with garden space, a ground-source system at £15,800 to £40,300. Grant support takes £7,500 off either.
What's different about the South East
- Labour rates across the South East sit 5–15% above the UK average, highest in the London commuter belt.
- A large stock of detached and semi-detached homes means bigger systems are common, and good solar irradiance along the Hampshire and Kent coasts improves payback.
- All national grants apply: the £7,500 Boiler Upgrade Scheme, ECO4 and GBIS insulation schemes, and the £350 OZEV charger grant for renters and flat owners.
Common questions
How much does a heat pump cost in Portsmouth?
A typical installation costs £8,400 to £17,300 in Portsmouth in 2026. Labour rates across the South East sit 5–15% above the UK average, highest in the London commuter belt. The table above shows ranges by system size and property type.
Why do prices in the South East differ from the UK average?
Labour rates across the South East sit 5–15% above the UK average, highest in the London commuter belt. A large stock of detached and semi-detached homes means bigger systems are common, and good solar irradiance along the Hampshire and Kent coasts improves payback.
What grants are available in the South East?
All national grants apply: the £7,500 Boiler Upgrade Scheme, ECO4 and GBIS insulation schemes, and the £350 OZEV charger grant for renters and flat owners.
How do I get an accurate price for my home?
Ranges only narrow once an installer sees your property. Compare quotes from several vetted local installers, free and with no obligation, and contact them free through Find an Eco Installer. No spam calls.
Get accurate Portsmouth quotes
The ranges narrow fast once installers see your property. Compare free quotes from vetted installers around Portsmouth, with replies typically within 24 hours.
Find installers across the South East
Compare vetted local installers town by town.
Heat pump costs in other regions
- London
- the East of England
- the South West
- the West Midlands
- the East Midlands
- Yorkshire
- the North West
- Scotland
- Wales
Portsmouth prices follow the South East rates. See the full the South East guide.