Windows
Replacement windows: frames, glazing and the certificate you need in Ireland
One local tradesperson gets your request – no ring-round.
✓ Confirm
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We have sent an email to {email}. We only release your request to businesses once you have clicked the link in it.
Tell us how many windows you need and what you have in mind. Your request goes, without your name, to window companies in your area, and exactly one of them can take it.
- Exactly one business. Your request is handed out once. After that, no other business sees it.
- You know who will be in touch. Before the business receives your contact details, we send you its name, address and phone number.
- Withdraw at any time. You can withdraw your consent at any time – using the link in our email.
Frame materials and glazing
Aluminium allows slim frames and large panes and is typical for modern extensions and bi-fold doors. Composite frames combine a timber inside with an aluminium outer face.
Double glazing is standard. Triple glazing adds weight and cost, and in the milder parts of the country the benefit is smaller than the brochures suggest. For sash windows there are double-glazed timber sashes with slim units, and secondary glazing is an option where the original windows must stay. Ask for the whole-window U-value or energy rating, not only the figure for the glass.
In Ireland: SEAI grants and the BER
For new windows and doors, SEAI grants may help; the details are below with sources. For a complete upgrade, the National Home Energy Upgrade Scheme works through SEAI-registered One Stop Shops, which manage the whole job to at least a B2 BER and deduct the grant from the cost upfront.
A Building Energy Rating (BER) is needed when a home is sold or let, and an assessment is part of most upgrade schemes. Ask the installer whether they are SEAI-registered, because only registered contractors can carry out grant-aided work.
Source: seai.ie
Make a requestSEAI and local authority grants
SEAI Individual Energy Upgrade Grants (Better Energy Homes – insulation, windows and doors): Fixed SEAI grants for individual upgrades: attic insulation up to €2,000 (up to €2,500 for first-time buyers and homeowners on qualifying welfare payments), wall insulation up to €8,000, windows up to €4,000, doors up to €1,600 and heating controls up to €700. Grant approval must be in place before works start.
National Home Energy Upgrade Scheme (One Stop Shop) (SEAI, through registered One Stop Shops): Complete home energy upgrade to at least a B2 BER, fully managed by an SEAI-registered One Stop Shop from assessment to final BER; the grant is deducted from the cost of works upfront and low-cost financing is available.
Only the scheme operator decides whether you qualify. For SEAI grants, approval must usually be in place before work starts, so agree the timing with the business before you sign.
How your request reaches one business
You confirm your mobile number with a text code and your email address with a link. We then show the request to businesses in your area, without your name or contact details. Only one business can take it on; it pays Offrano for the request, and it costs you nothing.
Before that business sees your details, we email you its name, address and phone number. We check only that it is a registered business, for example through its Companies Registration Office entry or VAT number, not the quality of its work. We cannot promise that a business will respond; if nobody takes the request within 21 days, we withdraw it. Offrano is not a party to any contract for the work.
Grants in Ireland
These schemes may apply to your project. What counts are the provider's conditions at the time you apply.
SEAI Individual Energy Upgrade Grants (Better Energy Homes – insulation, windows and doors)
Sustainable Energy Authority of Ireland (SEAI)
Fixed SEAI grants for individual upgrades: attic insulation up to €2,000 (up to €2,500 for first-time buyers and homeowners on qualifying welfare payments), wall insulation up to €8,000, windows up to €4,000, doors up to €1,600 and heating controls up to €700. Grant approval must be in place before works start.
Source: www.seai.ie · As of 09.2026
National Home Energy Upgrade Scheme (One Stop Shop)
Sustainable Energy Authority of Ireland (SEAI), über registrierte One Stop Shops
Complete home energy upgrade to at least a B2 BER, fully managed by an SEAI-registered One Stop Shop from assessment to final BER; the grant is deducted from the cost of works upfront and low-cost financing is available.
Source: www.seai.ie · As of 09.2026
Frequently asked questions
Is triple glazing worth it?
It reduces heat loss further but costs more and adds weight to the frame. Whether it pays back depends on the house, the frame quality and how long you stay. A well-fitted double-glazed window with a good energy rating often makes more difference than the third pane.
What should I do with old sash windows?
Ask a joiner experienced with sash windows before deciding.
Will I be contacted by lots of window companies?
No. The request goes to one installer only, and we tell you by email who it is before it gets your details.
What is a One Stop Shop?
An SEAI-registered company that manages a complete home energy upgrade to at least a B2 BER, from assessment to final rating, and deducts the grant upfront.
Source: seai.ie
What does the request cost me?
Nothing. The business that takes on your request pays Offrano for it. Whether you accept its quote is entirely up to you.
Why does only one business get my request?
So that you are not called by several firms at once. The business that takes it on has the request to itself.
Ready to make your request?
Describe your project – your request goes to exactly one business.
Make a request