Heat pump cost calculator
Get a realistic ballpark for installing a heat pump in your home. Pick the type, your number of bedrooms and any radiators that need upgrading, and apply the SEAI heat pump grant to see the figure before and after it. It is an estimate to help you plan, not a fixed quote.
Estimate your heat pump cost
Air source sits outside the house; ground source needs boreholes or trenches dug.
A rough proxy for home size and the heat output you need.
Older radiators are often too small for heat pump flow temperatures and need swapping.
An Irish government grant via the Sustainable Energy Authority of Ireland, roughly 6,500 euro towards a heat pump.
An Irish ballpark before any grant. With the SEAI heat pump grant applied, the figure you pay for an air source system is often several thousand euro lower. This is an estimate, not a fixed quote - book a survey for an exact price.
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What goes into the price
A heat pump install is not a single product price. The biggest factors are the type of pump (air source units sit on a wall or base outside, while ground source needs boreholes or trenches dug), the size of your home, and how much of your existing heating system needs changing. Bigger homes need a higher-output pump, and older radiators are often too small to run at the lower flow temperatures a heat pump uses, so some need swapping for larger ones.
Choose air source or ground source, set your number of bedrooms, and enter how many radiators may need upgrading.
See your estimated cost as a low-to-high range, with the SEAI grant toggled on or off to show what you would actually pay.
Use the estimate to set your budget, then book a survey with an SEAI-registered installer for a firm, written price.
Save a one-page PDF of your estimate to keep or send to installers when you ask them to quote.
Estimate = base install + heat pump type + home size + radiator upgrades - grant Why heat pump quotes vary so much
No two homes heat the same way
Two houses on the same street can get very different quotes. Insulation, the age and size of the radiators, whether you need a new hot water cylinder, and how easy the outdoor unit is to site all move the price. Ground source costs far more than air source because of the digging. That is why a real survey, not a calculator, gives the firm number - this is here to set your expectations before you book one.
The job goes to the installer who answers
When a homeowner is ready to book a survey, they ring round. The installer who picks up usually wins the work; the ones who let it ring out lose it to whoever called next. Hey Jodie answers every call 24/7 for heating and renewables firms, takes the details and books the survey, so enquiries priced up on tools like this one do not slip away. It will not quote the job for you - it makes sure you are the one who gets to.
Frequently asked questions
How much does a heat pump cost in Ireland? +
As a ballpark, a typical air source heat pump install runs from around 8,000 to 14,000 euro before any grant, with most mid-sized homes landing in the middle of that range. Ground source systems cost considerably more because of the boreholes or trenches. After the SEAI heat pump grant of roughly 6,500 euro, the amount you pay for an air source system is often several thousand euro lower. Set your own details above for an estimate closer to your home.
What affects the price of a heat pump install? +
The main drivers are the type of pump (air source is cheaper than ground source), the size of your home, how many radiators need upgrading to run at heat pump temperatures, and whether you need a new hot water cylinder or extra pipework. Access, the difficulty of siting the outdoor unit, and your insulation also matter. The SEAI grant then reduces the final figure where it applies.
What is the SEAI heat pump grant? +
The SEAI heat pump grant is an Irish government grant from the Sustainable Energy Authority of Ireland that gives a flat amount, roughly 6,500 euro, towards the cost of installing an air source or ground source heat pump. You apply through SEAI and use an SEAI-registered installer; the grant is paid after the work is complete and a technical assessment is in place. This calculator lets you toggle the grant on or off to see both numbers.
Is this heat pump cost estimate accurate? +
It is a realistic ballpark based on current Irish price ranges, not a fixed quote. Real costs depend on a survey of your specific home - its heat loss, radiators, cylinder and access - so treat the figure as a planning guide. Use it to set your budget and to sense-check the quotes you get, then rely on a proper installer survey for the exact price.
How do I get an exact heat pump quote? +
Book a survey with one or two SEAI-registered installers. They will assess your home heat loss, check whether your radiators and cylinder are suitable, and give a firm written quote, including handling the SEAI grant paperwork and the technical assessment. Take your estimate from this tool along so you can compare like for like. Most reputable installers will not give a final price without a survey.
Is a heat pump cheaper to run than a gas or oil boiler? +
Running cost depends on your home, your tariff and how the system is set up. A well-designed heat pump in a reasonably insulated home can be competitive with or cheaper than gas or oil, especially on a heat pump electricity tariff, because it produces several units of heat for each unit of electricity. This tool covers the install cost, not running costs - your installer can model the running figures for your home.
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