Guides

Insulation guides for Irish homes

Each guide cites its sources and says when it was last checked. When you are ready for figures for your own house, use the grant eligibility check, or try the grant tools.

• SEAI insulation grants explained

  Which SEAI grant routes pay for insulation in Irish homes, what each one requires, and how to apply for the individual grants before work starts.

• Attic insulation in Ireland

  How much attic insulation you need, what a good job looks like, what it has cost, how the SEAI grant works, and what to check before and after.

• Cavity wall insulation in Ireland

  How to tell if your house has cavity walls, what the work involves, what it has cost, and when cavity wall insulation is not the right fix.

• External wall insulation in Ireland

  What external wall insulation costs, when it needs planning permission, how disruptive it is, and what the SEAI grant pays by house type.

• Internal wall insulation in Ireland

  What internal wall insulation (dry lining) involves, how it compares with external and cavity insulation, its cost and what the SEAI grant pays.

• Choosing an insulation contractor in Ireland

  How to check an insulation contractor is SEAI registered, what to ask for in a quote and a written contract, and what SEAI does and does not guarantee.

• Floor insulation in Ireland

  Compare solid and suspended floor insulation, disruption, damp and ventilation checks, quote scope and the SEAI One Stop Shop grant route.

• Which insulation should you do first?

  Plan an Irish home energy upgrade around the house, your budget and future heating. Compare attic, wall and floor priorities without paying for work twice.

• BER certificates and assessments in Ireland

  Understand your BER, the new A0–G scale and when to book an assessment. Prepare insulation records and use the advisory report to plan your next upgrade.

• Warmer Homes Scheme in Ireland

  Check the rules for free SEAI energy upgrades, qualifying welfare payments, the survey and application. Understand waiting times and paid grant alternatives.

• One Stop Shop or individual grants?

  Compare managed whole-home upgrades with individual SEAI grants in Ireland. Understand payment timing, assessments, BER targets and what to compare in quotes.

• Ventilation, condensation and mould after insulation

  Plan ventilation alongside insulation in an Irish home. Compare systems, prepare a survey checklist and know what to do about persistent condensation or mould.

• Insulating older and solid-wall homes in Ireland

  Plan insulation for an older Irish home. Check wall construction, moisture, heritage consent, the Traditional Homes Pilot and specialist quotes.

• What insulation costs in Ireland

  Compare SEAI insulation costs by house type, understand the limits of medians and build a budget from surveyed quotes, grants and payment stages.

• Insulating rented homes and apartments in Ireland

  Find the right route as a tenant, landlord or apartment owner. Check SEAI support, shared-property consent, surveys and arrangements for occupied homes.