Heat pump cost in Ireland
What air source, ground source and air-to-air heat pumps cost, and what the SEAI grant brings each one down to.
Grant figures confirmed against SEAI
Heat Pump Cost in Ireland, Before and After the Grant
Heat pump cost in Ireland depends mostly on the type of system. An air-to-water heat pump, the standard choice for Irish homes, runs between €12,000 and €18,000 before grants, which the SEAI grant brings down to a net €5,500 to €11,500. The figures below are typical installed prices, not equipment only.
Air-to-Water Heat Pump
€12,000–€18,000
Net €1,500–€11,500 (as of July 2026)
The standard whole-home choice. Heats radiators, underfloor and hot water.
Ground Source Heat Pump
€20,000–€30,000
Net €13,500–€23,500
Higher efficiency from ground loops. Best for larger rural sites.
Air-to-Air Heat Pump
€3,000–€8,000
Net from around €2,500
Lowest cost. Heats the air only, no hot water.
What Affects the Price of a Heat Pump Installation
Two homes rarely pay the same. Three things drive most of the difference between one quote and the next.
Radiator Sizing
A heat pump runs cooler than a boiler, so some radiators may need upsizing to give out the same heat at a lower temperature. Many homes only replace a few, which keeps the cost down.
Hot Water and the Cylinder
Many installations add or replace a hot water cylinder sized to the household. Whether one is already in place moves the price up or down.
Electrical Supply
A heat pump needs a dedicated electrical supply, which some homes have to add. For RECI-registered electricians, electriciansinireland.ie lists verified contractors nationwide.
Running Costs and the Real Cost After the SEAI Grant
The upfront heat pump cost is only half the picture. A heat pump replaces oil or gas with electricity and delivers several units of heat for each unit it uses, so most homes see lower running costs, especially once the fabric of the house is well insulated.
The SEAI grant of up to €12,500 (as of July 2026) is a fixed contribution, so it lands hardest on the net price of a typical air-to-water install. To claim it, the installer must be SEAI-registered, and every installer listed here is. The real heat pump cost you pay is the installed price minus that grant.
Get quotes from installersHeat Pump Cost in Ireland, Answered
How much does a heat pump cost in Ireland?
An air-to-water heat pump, the most common type, costs between €12,000 and €18,000 before grants. The SEAI grant of up to €12,500 (as of July 2026) brings the net cost to between €1,500 and €11,500, depending on what you are replacing and whether heating upgrades are needed.
What is the cheapest type of heat pump?
An air-to-air heat pump is the lowest-cost option, from around €3,000 to €8,000, but it heats the air only and does not provide hot water. Air-to-water is the standard whole-home choice.
How much does a ground source heat pump cost?
Ground source systems cost more to install, typically €20,000 to €30,000, because of the ground loops or boreholes. They are more efficient over their lifetime and suit larger rural sites.
What affects the price of a heat pump installation?
Radiator sizing, hot water demand, how much pipework needs replacing, and whether a new cylinder is required all move the price. A free home survey gives an accurate figure before any quote is signed.
Does a heat pump reduce running costs?
A heat pump replaces oil or gas with electricity and runs at high efficiency, so most homes see lower heating bills, particularly when the fabric of the house is well insulated first.
Is the SEAI grant taken off the price?
The SEAI grant of up to €12,500 (as of July 2026) is a fixed contribution, so the real cost you pay is the installed price minus the grant. The installer must be SEAI-registered for it to be paid.
More on Heat Pumps and SEAI Grants
SEAI Heat Pump Grant Explained How the grant of up to €12,500 (as of July 2026) works and how to apply. Read guide 
Is My Home Suitable for a Heat Pump? Insulation, BER and radiators that decide suitability. Read guide 
Air Source vs Ground Source The two heat pump types compared on cost and efficiency. Read guide 
Heat Pump Installers in Ireland SEAI-registered, grant-eligible installers in all 26 counties. Read guide Get Heat Pump Quotes From Installers Near You
The only way to pin down heat pump cost for your home is a survey. Every installer here is SEAI-registered and grant-eligible for the grant of up to €12,500 (as of July 2026).