New BER Ratings in Ireland: What Homeowners Need to Know
Ireland’s new BER ratings system came into effect on 24th May 2026 with the introduction of a simplified BER scale for homes and buildings.
The Sustainable Energy Authority of Ireland has introduced the new BER scale to make energy ratings easier for homeowners to understand and more consistent across Europe. While the BER changes in Ireland may sound significant, most homeowners will not need to take immediate action.
Existing BER certificates remain valid, and the overall approach to retrofit grants and home energy upgrades remains largely unchanged.
For homeowners planning retrofit works, applying for grants or improving their home energy rating in Ireland, understanding the new BER ratings system is now an important part of the process.
“The BER system has not been replaced. It has been simplified.”
What Has Changed with BER Ratings in Ireland?
The previous 15-point BER scale has now moved to a simplified 8-point system.
The old BER ratings:
- A1, A2, A3
- B1, B2, B3
- C1, C2, C3
- D1, D2
- E2, E2
- F
- G
The NEW BER ratings:
- A0
- A
- B
- C
- D
- E
- F
- G
The new A0 category applies to highly energy-efficient buildings that do not rely on fossil fuels.
The aim of the simplified BER scale is to make BER ratings clearer for homeowners and to align Ireland’s BER system more closely with wider European energy standards.
Will Existing BER Certificates Still Be Valid?
Yes.
Existing BER certificates in Ireland remain valid for 10 years from the date they were issued, unless major renovation works significantly change the energy performance of the property.
This means:
- You do not need to replace your current BER certificate
- Existing BER certificates still meet legal requirements for selling or renting a property
- Current BER certificates remain valid for grant and compliance purposes
For most homeowners, the new BER ratings system will only apply when a new BER assessment is carried out.
“A home previously rated B2 will now sit within the broader B category.”
What Do the BER Changes Mean for Grants?
The BER changes introduced in 2026 do not remove existing retrofit grants or home energy supports.
However, some grant requirements are now shown differently under the simplified BER scale.
For example:
-
The previous post-works BER requirement of B2 under certain schemes is now displayed as a B rating under the new BER system
-
The underlying energy performance standards themselves have not changed
In practical terms, the way BER ratings are presented has changed, but the overall performance targets behind them remain consistent.
What Information Is Included on the New BER Certificates?
The updated BER certificates now include more detailed information about the home’s energy performance.
This includes:
- Energy use information
- Renewable energy contribution
- Operational greenhouse gas emissions
- Guidance on improving energy performance
The revised BER certificates also include QR codes linking homeowners directly to BER details and upgrade guidance.
Why the New BER Ratings Matter for Homeowners
BER ratings in Ireland play an important role when planning retrofit upgrades, applying for grants, selling a property or improving overall comfort.
The simplified BER scale should make ratings easier to understand, particularly for homeowners unfamiliar with the previous A1 to G rating structure.
More importantly, the BER changes highlight the growing focus on energy performance across Irish housing.
As retrofit activity continues to increase, more homeowners are paying closer attention to how their homes perform, how much energy they use and what improvements may be needed in the years ahead.
Getting Started the Right Way
If you are planning retrofit works, improving your BER rating or applying for grants, it is important to understand how the new BER system applies to your property.
The right advice at the beginning can help you:
-
Understand your current BER positionSee how your existing BER certificate fits within the new simplified BER scale
-
Identify the upgrades that will have the biggest impactFocus on the improvements that will most improve comfort and energy efficiency
-
Avoid costly mistakes and ensure retrofit upgrades work together effectively
- Check what grants you may be eligible for
Use the SEAI grant eligibility checker to understand what supports are available - Compare your upgrade options
Look at the difference between individual grants and a One Stop Shop approach - Arrange a Home Energy Assessment
Get a clear picture of how your home is performing and what improvements will make the biggest difference
Taking this structured approach makes the process more straightforward and helps avoid costly mistakes later.
Ready to improve the comfort and efficiency of your home? Get in touch to discuss the right retrofit path for your property.
Whether it’s a full deep retrofit through the SEAI One Stop Shop or individual upgrades via the Better Energy Homes Scheme, we’ll handle the process from assessment to completion – so you can enjoy the benefits without the stress.
