SEAI Insulation Grants Ireland 2026

SEAI offers grants of up to €8,000 towards home insulation. Here's a full breakdown of what's available, who's eligible, and how to apply.

Grant Amounts by Insulation Type

Grant amounts vary depending on the type of insulation and your property type. The table below shows the current SEAI grant amounts available under the Individual Energy Upgrade scheme.

Insulation Type Apartment Mid-Terrace End-Terrace Semi-Detached Detached
Attic Insulation €1,100 €1,400 €1,500 €1,500 €2,000
Cavity Wall Insulation €700 €850 €1,300 €1,300 €1,800
External Wall Insulation €3,000 €3,500 €6,000 €6,000 €8,000
Internal Dry Lining €1,500 €2,000 €3,500 €3,500 €4,500

Grant amounts are based on SEAI's Individual Energy Upgrade grants as of February 2026. First-time buyers and homeowners on qualifying welfare payments may receive higher amounts. Amounts may change. Check SEAI's latest announcement for current figures.

Eligibility Requirements

To qualify for an SEAI insulation grant, your home must meet the following criteria:

  • Property age: Your home must have been built and occupied before 2011 for most insulation grants. Newer homes are generally built to higher insulation standards and aren't eligible.
  • Registered contractor: The insulation work must be carried out by a contractor registered with SEAI. This ensures the work meets the required standards. Your installer can confirm their SEAI registration.
  • BER assessment required: You'll need a pre-works and post-works BER assessment from a registered BER assessor. This confirms the energy improvement achieved by the insulation work.
  • Apply before work begins: You must receive SEAI approval before the work starts. Grants cannot be applied for retrospectively. Work done before approval is not eligible.
  • Owner-occupied or rented: Both owner-occupied homes and rental properties are eligible. Landlords can apply for grants on properties they rent out.

How to Apply for an SEAI Insulation Grant

1

Get a BER Assessment

Before applying for an SEAI grant, you'll need a pre-works BER (Building Energy Rating) assessment. This establishes your home's current energy performance and identifies the most impactful upgrades.

2

Choose a Registered Contractor

SEAI grants require the work to be carried out by a contractor registered with SEAI. Your installer can confirm their registration status when quoting.

3

Apply Online at SEAI.ie

Submit your application through the SEAI's online portal at seai.ie. You'll need your BER assessor's details and your chosen contractor's SEAI registration number. Wait for approval before work begins.

4

Get the Work Done

Once approved, your contractor carries out the insulation work. Keep all invoices and documentation. You'll need them to claim the grant.

5

Post-Works BER & Grant Payment

After the work is completed, a post-works BER assessment confirms the improvement. Once SEAI verifies everything, the grant is paid directly to you.

SEAI Grant FAQs

Can I apply for multiple grants at once?
Yes. You can apply for grants covering different insulation types in a single application. For example, attic and cavity wall together. Combining upgrades often delivers better energy savings and a bigger BER improvement.
Do I need to pay upfront and get reimbursed?
Yes. SEAI grants are paid after the work is completed and verified. You pay the contractor the full amount, then SEAI reimburses the grant portion directly to you once the post-works BER assessment is submitted.
Are rental properties eligible?
Yes, landlords can apply for SEAI insulation grants on rental properties. The property must meet the same eligibility criteria. Built and occupied before the relevant date, and the work must be done by a registered contractor.
How long does the SEAI grant process take?
From application to payment, the process typically takes 6–12 weeks. SEAI approval usually comes within 2–4 weeks of applying. After that, you arrange the work with your contractor, complete the post-works BER, and submit for payment.
Is there income-based eligibility for SEAI grants?
The standard SEAI individual energy upgrade grants are available to all homeowners regardless of income. However, if you're receiving certain social welfare payments, you may qualify for the Warmer Homes Scheme, which covers the full cost of insulation with no contribution from you.

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