SEAI Registered Contractor

Window & Door Grant Now Available

From March 2026, homeowners can avail of standalone SEAI grants for energy-efficient windows and doors. Dunne Eco is a registered SEAI contractor ready to help you through the entire process.

View Grant Amounts Check Eligibility
100+ Years Experience
SEAI Registered
A-Rated Windows
Grants up to
€5,600
for windows & doors
€4,000 Windows
€800 Per Door
2 Doors Max

Grant Amounts by Dwelling Type

The grant amount you can receive depends on your dwelling type. Door grants are the same across all property types.

Detached House

€5,600
Maximum total grant
Windows €4,000
Doors (max 2) €1,600

Semi-Detached / End Terrace

€4,600
Maximum total grant
Windows €3,000
Doors (max 2) €1,600

Mid-Terrace House

€3,400
Maximum total grant
Windows €1,800
Doors (max 2) €1,600

Apartment / Duplex

€3,100
Maximum total grant
Windows €1,500
Doors (max 2) €1,600
Door grants: €800 per external door, with a maximum of 2 doors eligible regardless of how many you replace. Patio doors are treated as external doors. You can apply for window and door grants separately.

Am I Eligible?

To qualify for the SEAI window and door grant, your home must meet the following requirements.

Home Built & Occupied Before 2011

Your home must have been built and occupied prior to 2011 to be eligible for the windows and doors grant.

Replacing Single or Double Glazed Windows

You must be upgrading existing single or double glazed windows to high-performing windows with a U-value of 1.4 W/m²K or better.

Adequate Attic & Wall Insulation

Your home must achieve a Heat Loss Indicator (HLI) value of 2.3 W/K·m² or better on your BER, which requires adequate attic and wall insulation.

Adequate Ventilation

All rooms with replacement windows must have adequate ventilation. This is a key requirement for grant approval.

SEAI Registered Contractor

Works must be completed by an SEAI registered contractor. Dunne Eco is fully registered on the SEAI Contractor Register.

How Do I Know If My Insulation Is Adequate?

Check your existing BER certificate on the national register using your MPRN (Meter Point Reference Number). Look for a "Good" or "Very Good" rating on your Heat Loss Indicator.

If you've previously received SEAI grants for attic and wall insulation, you're likely already set. If not, a pre-works BER assessment is the easiest way to find out. Your BER assessor will advise if additional insulation is needed.

Don't worry - SEAI grants are also available for attic and wall insulation if you need them before applying for the windows and doors grant.

Door-Specific Requirements

A maximum of 2 external doors are eligible for grant support. Doors must achieve a U-value of 1.4 W/m²K or better. Patio doors are treated as external doors.

How To Apply

The grant application process is straightforward. Here's what you need to do.

1
Check Your BER

Look up your BER on the national register using your MPRN. Check your insulation rating is adequate.

2
Get a Quote

Contact Dunne Eco for a free consultation and detailed quotation for your window or door upgrade.

3
Apply Online

Submit your grant application on the SEAI website. Wait for your Letter of Grant Offer before starting any works.

4
Installation

Dunne Eco installs your new energy-efficient windows and/or doors. You have 8 months to complete the works.

5
Post-Works BER

A BER assessment is completed after installation to confirm the energy upgrade meets the required standard.

6
Claim Your Grant

Submit your Declaration of Works and Request for Payment to SEAI. The grant is paid directly to you.

Important: You must receive your Letter of Grant Offer from SEAI before any works commence or materials are purchased. Starting early could make you ineligible for the grant.

How Dunne Eco Supports You

As an SEAI registered contractor, we guide you through every step of the grant process.

Free Consultation

We'll discuss your requirements, assess your current windows and doors, and provide expert advice on the best energy-efficient options for your home.

Site Survey & Quotation

Our team will visit your home to take precise measurements, photograph all existing windows and doors, and provide you with a detailed quotation and customer agreement.

Grant Guidance

We'll advise you on grant eligibility requirements including ventilation, insulation standards, and help ensure your application is in order before you submit it to SEAI.

Professional Installation

Our experienced fitters install your new A-rated windows and doors to the highest standards, fully compliant with SEAI technical specifications and building regulations.

Completion & Sign-Off

We complete all necessary documentation including the Declaration of Works, provide CE certification for all products, and ensure you're fully set up to claim your grant from SEAI.

Our Commitment to Quality
  • Full SEAI compliance on all installations
  • CE-marked, A-rated products from trusted suppliers
  • Pre and post-installation photographic records
  • All documentation provided for your BER assessor
  • Customer sign-off on every window and door fitted
  • Complete Declaration of Works handled for you
What We'll Advise You On
  • Whether your insulation meets the grant requirements
  • If ventilation upgrades are needed in any rooms
  • The best window and door options for your home
  • How to check your BER and HLI rating
  • The full grant application process step-by-step

Frequently Asked Questions

Got questions about the SEAI grant? Here are the answers to the most common ones.

The grant amount depends on your dwelling type: detached houses can receive up to €4,000, semi-detached/end terrace up to €3,000, mid-terrace up to €1,800, and apartments/duplexes up to €1,500. You can only apply for the windows grant once.

Yes, you can apply for the window grant and door grant at separate times. However, you can only apply for each grant once - so you cannot apply for the window grant twice or the door grant twice.

The Heat Loss Indicator (HLI) measures how well your home retains heat. To qualify for the windows and doors grant, your home must achieve an HLI value of 2.3 W/K·m² or better. This means your attic and wall insulation must be in good condition. If your HLI doesn't meet this threshold, you won't qualify for the grant until the insulation is improved.

You can look up your existing BER on the national BER register using your MPRN (Meter Point Reference Number). Your BER Advisory Report will show your Heat Loss Indicator rating. If you don't have an advisory report, we recommend getting a pre-works BER assessment - your BER assessor will tell you if any additional insulation is needed before you can claim the windows grant.

Not necessarily. If your home already has adequate attic and wall insulation (shown as "Good" or "Very Good" on your BER), you're ready to apply. If you've previously had SEAI grants for attic and wall insulation, you're most likely set. If your insulation isn't sufficient, separate SEAI grants are available to help cover the cost of upgrading it before you apply for the window and door grant.

No. You must wait until you receive your formal Letter of Grant Offer from SEAI before any installation works begin or materials are purchased. Starting early could make you ineligible for the grant. You have 8 months from grant approval to complete the works and claim the grant.

The grant is open to homeowners, landlords, companies, registered charities, Approved Housing Bodies, and Owner Management Companies. It is not means tested. Your home must have been built and occupied before 2011, and you must use an SEAI registered contractor such as Dunne Eco.

By default, the grant is paid directly to the homeowner. However, you can choose to nominate the contractor's bank account when completing your Request for Payment form, if you've agreed a "net of grant" payment arrangement with your contractor.

Yes. A post-works BER assessment is required after your new windows or doors are installed. This must be carried out after you receive your Letter of Grant Offer, not before. Many homeowners choose a combined pre- and post-works BER service to keep things simple.

Adequate ventilation is required in every room where windows are replaced. This is one of the most common reasons for grant issues, so it's taken very seriously. Dunne Eco will assess your ventilation during the survey and advise you if any additional ventilation is needed to meet the requirements.

Ready to Get Started?

Contact Dunne Eco today for a free consultation and let us help you make the most of the SEAI window and door grant. With over 100 years of craftsmanship, you're in safe hands.

(057) 932 2468 Contact Us

Tullamore, Co. Offaly  |  Mon-Fri: 9am - 5pm  |  Sat: 9am - 1pm

Grant amounts and eligibility criteria are based on the SEAI Better Energy Homes scheme as of March 2026. Information is subject to change. For the most up-to-date details, visit seai.ie. Dunne Eco is a registered SEAI contractor for windows and doors.