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SEAI grants 2021: All grants and how to apply

The SEAI (Sustainable Energy Authority of Ireland) Logo

SEAI is the Sustainable Energy Authority of Ireland. They provide information and a multitude of valuable grants to Irish energy consumers, so if your house is not in tip-top energy-efficient condition, read on to find out more about what the SEAI can do for you.

Renewable energy sources

The SEAI focus on encouraging and researching sustainable energy use and development, as well as advocating for more efficient energy consumption. They are proponents of a low carbon future for Ireland and are charged with commissioning reports and studies to enable Ireland to meet its 2030 climate and energy goals under the EU Paris agreement.

Ireland's 2030 targets are a 4% reduction in greenhouse gas emissions, 27% more energy efficiency, and a 27% renewable energy rate. As part of SEAI’s commitment to achieving these targets, SEAI grants are provided to improve and upgrade home energy efficiency. In addition to the grants we discuss below, they also provide insulation grants (including attic insulation) which you can find out more about in our insulation guide.

Please noteTo qualify for a grant, all paperwork must be submitted within 6 months of the completion of installations or upgrades

There are interim 2020 energy efficiency targets which Ireland also needs to meet, 16% of all energy sources being renewable, 10% of all energy sources in the transport industry must be renewable, and a reduction in greenhouse gas emissions of 20% from 2005 levels.

Worryingly, a report by the Climate Action Network (CAN) in 2018 found that we are most probably going to miss our 2020 deadlines and be liable for annual non-compliance costs of around €500 million - money which could certainly be put to better use elsewhere, such as investing in renewable energy infrastructure. The same CAN report affirmed that “the Irish electricity grid has an impressive potential of integrating high levels of renewables, especially wind power, which can still be further developed”.

Double up your savings by getting cheaper gas and electricity rates.Talk to an energy adviser for free to find out how much money you can save. Call 15 256 883 or get a free callback now.

What SEAI grants are available?

SEAI Infographic

Apart from insulation grants, there is also a wide range of additional home improvement grants available through the SEAI. These include:

  • SEAI boiler grant
  • SEAI grant for windows
  • SEAI deep retrofit grant
  • SEAI heat pump grant
  • SEAI solar grant
  • SEAI heating controls grant

SEAI boiler grant

Prior to April 2018 there was a €750 grant available for fitting a high-efficiency combi boiler with heating controls. However, this was then discontinued in favour of promoting a grant for the more energy and cost-efficient heat pumps.

It makes sense given Ireland’s commitment to increasing renewable energy, to stop providing grants for boilers which tend to be dependent on fossil fuels, or electricity (expensive!).

However, houses which were built before 2006 can still qualify for a grant towards a new boiler as part of the SEAI heating controls upgrade scheme. Read our section about the heating controls upgrade scheme below to find out how.

SEAI grant for windows

If you qualify for the Warmer Homes Scheme and your house has single glazed windows, you could have them replaced for free. A typical house loses 10% of its heat through its windows, and single glazed windows are very poor at conserving energy.

Double glazing can reduce heat loss through windows by up to 74% and triple glazing is the most efficient of all, estimated at being able to reduce your overall energy bill by up to 50%. Double and triple-glazed windows also greatly improve soundproofing, and are much harder to break than single glazing, increasing your home security.

To apply for a grant to replace your windows, the SEAI will analyse each window to check if it is single-glazed and that the surrounding walls are insulated.

SEAI deep retrofit grant

The SEAI deep retrofit grant scheme ran until August 2019, when it was suspended with immediate effect due to a lack of funds. The scheme was very well received, and when the SEAI's budget ran over and it was unable to move forward with all the qualifying applications, the government stepped in and used the Budget 2020 to fund them.

The scheme was a pilot scheme aimed at carrying out multiple energy upgrades at the same time, on old housing, in order to upgrade the house to a BER A rating. As the pilot scheme was a success, it is hoped that the scheme will move forward, however, the budget assigned to complete all applications from the 2020 Budget may mean the scheme will not run again until 2021 at the earliest if at all.

SEAI heat pump grants

House with heat pump system

Heat pumps are devices which use thermal energy from the air, water or the ground to heat your home. For pumps which heat your home and water supply, SEAI has grants available of €3500. For air-to-air pumps, which heat only your home and not water, there is a €600 grant available. There are no grants available for heat pumps which only provide hot water. Note that in order to qualify for a grant, your home must have been built before 2011.

For more information on the different types of heat pumps, check out our home heating guide. Heat pumps can only be installed in homes which are already fairly energy efficient (well-insulated, for example), and a registered technical advisor will need to inspect your home prior to commencing work.

You will receive an additional grant of €200 towards the cost of the registered technical advisor’s inspection after completing the heat pump installation. As with other SEAI grants, this grant can be applied for online

SEAI solar grant

All homeowners whose dwellings were built and occupied before 2011 can apply for a solar thermal grant of up to €1200, or a solar PV grant of up to €3800. Thermal solar panels heat up water for the house while Solar PV panels provide electricity.

Typical thermal solar systems can cost in the region of between €800 - €1300 per square metre. When taking into account the grant available, the cost can usually be made back within a few years, and that’s not even considering that you’ll no longer be paying for new boilers and servicing, or immersion heaters.

Another advantage of thermal solar panels is that they are very suitable for houses in remote locations not connected to the gas network. As we all know, electricity is far more expensive than gas and using electricity to heat water can hit people’s pockets really hard, especially during the winter months.

Solar PV panels can cost between €5000 to €7000 for installation, batteries, VAT.

In order to receive a grant, the installation must be carried out by a registered contractor. The grant can then be applied for online. The area that the solar panels will cover cannot exceed 50% of the roof area, or else planning permission will be mandatory.

SEAI heating controls grant


The SEAI advises that customers can save up to 20% on their heating bills by using heating controls. Heating controls can also help you heat hot water without turning on home heating, and houses can be split into zones to allow for more efficient heating. Most people tend to spend time at home in the sitting room and kitchen areas, only retiring to their bedrooms to sleep. This means that heating the upstairs area to the same temperature and at the same time as the downstairs “living” area, can be wasteful and more expensive.

Any homeowners whose houses were built and occupied before 2006 can apply online for a heating controls upgrade grant of €700.

Types of heating controls covered by the grant include:

Boiler Interlock

This connects your heating system controls with your boiler and means your boiler will only operate when necessary.

Immersion Heater time and temperature control

This type of control will allow you to set what times you need hot water for and what temperature the water should be heated to. The water needs to be heated to at least 60°C to prevent bacterial growth. Heating your water to a high temperature is considered wasteful as you’ll only need to add cold water to it anyway in order to bring it to a comfortable temperature.

Seven-day programmable timer

The functions of this timer are to enable you to set your heating system to match when you are at home on a daily and weekly basis. This means you will only be paying for heating when you need it and you can also set your hot water to come on before the time you normally take a shower at.

Thermostatic Heating Controls (TRV)

TRVs are thermostats on the side of your radiators which enable you to maintain different temperatures in different rooms. This is particularly useful when it comes to bedrooms, which should be kept at a lower temperature than living areas, or any rarely used rooms such as spare bedrooms or formal dining rooms.

Bonuses for Multiple Upgrades

If you make three upgrades to your home, you will be eligible for a bonus grant of €300, or €400 if you complete four upgrades.

How much are the SEAI grant amounts?

These are the maximum amounts usually awarded under the listed grants. For insulation grants, the amount depends on the specific type of work being carried out. Check out our guide to home insulation for more information on SEAI insulation grant amounts.


Grant Value

Insulation grants

€300 - €6,000

Air to Air heat pumps


All other heat pumps


Heating controls upgrade


Solar water heating


Solar PV panels

€700 per kWp

Solar panel battery system


In addition to applying for a grant, we also recommend switching your energy supplier to make sure you're getting the best deal on your gas and electricity. If you haven't switched in the past year, you're likely on your supplier's standard tariff, which also tends to be the most expensive plan. Just by switching, you could save an extra few hundred euros per year.

In the table below, you'll find the cheapest electricity offers per supplier.

Cheapest Electricity Offer per Supplier
Supplier Best offer Price per year
Energia 41% Discount
€35 Cashback
Electric Ireland 5.5% Discount
€265 Cashback
BE Energy 28% off unit rate
20% off standing charge
Bord Gáis Energy 32% Discount €832.11
Panda Power 28%
€100 Cashback
SSE Airtricity 10% Discount
€200 Cashback
Bright Energy Standard €851.22
Flogas 30% Discount €869.24
Iberdrola 18% Discount
€100 Cashback
Glowpower 26% Discount €943.99
Community Power Standard €1,032.65
Pinergy €100 Cashback €1,179.93
Prepay Power Standard €1,261.03

Calculations based on average consumption figures for an urban home with a 24-hour meter. All discounts and cashback have been applied. Last updated: November 2020

Here at Selectra, our trained advisors can find you the best electricity plan for your home. Call 15 256 883 now or request a free callback now.

SEAI and the BER register

BER ratings

The SEAI maintain a register of the Building Energy Rating (BER) for homes and dwellings in Ireland. The BER can help you understand whether improvements need to be made to your home to make it run more efficiently, and a higher rating can be a great selling point when renting out a home or putting it on the market.

BER assessors are in charge of determining BER ratings and base the rating on the energy use and probable number of occupants of a given dwelling. BER ratings can also help you determine the annual fuel costs required by a property, for example when you are thinking of buying a house.

The SEAI estimates that a 75m² two bed apartment with a BER rating of A will average around €280 a year in fuel costs, and at the other end of the table, with the least efficient rating of G, fuel costs could be a staggering €3000, so it’s definitely something that everybody should be taking into consideration.

SEAI grants are not your only option for potential savings and upgrading your home's energy efficiency. You can also apply for the warmer homes scheme or the warmth and wellbeing scheme below.

Warmer homes scheme

Radiator with a man standing beside it making the OK symbol

The Warmer Homes Scheme offers free upgrades to improve home energy efficiency, for qualifying applicants. In order to qualify for the scheme you need to own and occupy a home which was built before 2006 and has not previously received an upgrade under the scheme, as well as receive one of the following allowances:

  • The fuel allowance.
  • The working family payment.
  • The one-parent family payment.
  • The domiciliary care allowance.
  • The carers allowance (when living with the person you are caring for).
  • The job seekers allowance (if you have been receiving it for at least six months and live with a child under seven years of age).

Home improvements on offer include upgrading insulation (attic, cavity wall, external wall, internal wall), lagging jackets, draught-proofing, energy-efficient lighting, heating systems, and windows.

What are lagging jackets?Lagging jackets are insulating material used to wrap water tanks. Lagging jackets for hot water tanks reduce heat loss, and for cold tanks prevent them from freezing in winter. Correctly installed lagging can reduce energy consumption by up to 10%.

The process can take up to 9 months and starts with applying for the scheme. You will then be contacted by a customer team to confirm your eligibility and asked for more details regarding your home if necessary. Next, an SEAI surveyor will visit your property and recommend the works which should be carried out. Following this, contractors will be assigned to your home to carry out the agreed improvements. Lastly, a BER assessment will be carried out.

Due to the time needed to process and carry out the upgrades, if you believe you are eligible you should apply as soon as possible. You check out the scheme and application guidelines, fill in, sign and date the application form, and either submit it with the relevant documents online either via email or by post to the Warmer Homes Scheme Department.

Warmth and wellbeing pilot scheme

Man using an inhaler

The Warmth and Wellbeing Pilot Scheme currently operates on a referral business so you cannot apply for it directly yourself. It is normally the HSE (Health Services Executive) who refers people for the scheme and it is currently only operational in Dublin 8, 10, 12, 22 and 24.

It aims to upgrade the energy efficiency of homes, much like the Warmer Homes Scheme, for people with chronic respiratory conditions. Areas which can be upgraded include attic and wall insulation and ventilation, boiler replacement, heating controls, and windows and doors.

As with the Warmer Homes Scheme, all upgrades and improvements are free of charge. Qualification for the scheme is limited and the following criteria must be met:

  • You must be referred by the HSE and have a chronic respiratory disease.
  • You must be aged 0-12 years of age, or over 55.
  • A member of your household must be in receipt of the one-parent family payment.
  • You must be resident in the house to be upgraded, which you must own or rent from an approved local authority.

If you think you may meet the above conditions but haven't been referred to the scheme, try contacting your local HSE authority, or use the contact details provided below for the scheme.

Send a letter to...

Warmth and Wellbeing Scheme,
Millbrook Lawns Health Centre,
Dublin 24,


☎ 01 4275032

How to apply for an SEAI grant

The procedure to apply for an SEAI grant is relatively painless and consists of a clear series of steps which may vary slightly depending on the grant you are applying for. Steps to follow include:

  1. Choose your energy upgrades
  2. Pick a registered technical advisor
  3. Choose a registered contractor
  4. Apply for the corresponding grant or grants
  5. Have the work on your home carried out
  6. Receive the grant you applied for

Below we'll go into more detail about what is involved at each stage of the grant application process.

1) Choose your energy upgrades

Once you've had enough time to go over all the SEAI grants on offer, it's time to make a decision. When you have selected which energy upgrades you think would be best for your home, contact a BER assessor, building contractor or energy advisor to discuss the suitability of the upgrades you have in mind.

Note that insulation and heating control grants can only be applied to homes constructed and occupied before 2006. Similarly, heat pump and solar water heating grants are only available for homes which were built and occupied before 2011.

2) Pick a registered technical advisor

This step only applies if you are applying for a heat pump grant. If you are not applying for a heat pump grant, you may pass directly to the third step below. For the second phase of your application, you should contact an SEAI registered technical advisor who will provide you with a written agreement of undertaking for performing a technical assessment (prior to performing the actual assessment).

3) Choose a registered contractor

Choose an SEAI registered contractor. The contractor you choose should provide you with a contract for any work before the actual work begins. You will need this contract later for the grant application process.

4) Apply for the corresponding grant or grants

All SEAI grants can be applied for either online or via a postal application. You can find all the details on how to make the application in the SEAI homeowner application guide. For online applications you can just navigate to the SEAI home energy grants page and click on "online application". To send a postal application, simply download the SEAI grants application form from the home energy grants page and send it to:

Better Energy Homes Scheme,
The Sustainable Energy Authority of Ireland,
P.O. Box 119,
Co. Kerry.

Online applications will receive grant offers immediately. Postal offers will be issued within 5 working days. You must accept the offer within the 30-day period after receiving it, or risk having to apply again.

5) Have the work on your home carried out

After receiving your grant offer, you must make sure all work is carried out within the following 8-month period. Your grant offer letter will also contain the final date for completing work by. During this 8-month period, you must ensure all work is carried out by an SEAI registered contractor, either pay the contractor outright or organise financing with them, complete a BER assessment and have a BER certificate published.

6) Receive the grant you applied for

To begin the process of receiving the money awarded to you under whichever grant scheme you applied for, you must fill out a Declaration of Works form, which the SEAI should have sent to you by post. You will need one form for each upgrade and each form needs to be filled in by you, your contractor and your BER assessor.

You will then need to submit the Declaration of Works to the SEAI Better Energy Homes Scheme address previously mentioned in step 4. Payment will usually be lodged in your bank account within 4 weeks of submitting the form.

Contact the SEAI

If you need to contact the SEAI then you're in luck as they have provided a multitude of different ways to get in touch with them. First and foremost are the contact details for their head office in Dublin:

Social Media

SEI Youtube  SEAI Facebook  SEAI LinkedIn  SEAI Twitter

Send a letter to Head Office...

Sustainable Energy Authority of Ireland, Wilton Park House, Wilton Place, Dublin 2, Co. Dublin,D02 T228.

Contact Numbers...

☎ 01 8082100
☎ 01 8082002

For all other queries refer to the contact information below.

  Better Energy Homes Scheme
LoCall ☎ 1850 927 000
  Building Energy Rating (BER) Information
LoCall ☎ 1890 734 237
  General Consumer Information
LoCall ☎ 1850 376 666
  Warmer Homes Scheme
Freephone ☎ 1800 250 204
Address Better Energy Warmer Homes Scheme, SUstainable Energy Authority of Ireland, PO Box 119, Cahirciveen, Co. Kerry
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