Keep more of the warmth you already pay for.
Explore attic, cavity, internal and external wall insulation with the right checks for your home.
Plan my insulationInsulation: the useful starting point.
Insulation is several different jobs. SEAI’s January–June 2026 median gross attic price for a semi-detached or end-terrace home was €2,101; the standard attic grant for that dwelling type is €1,500. Cavity, internal and external wall work have different costs and grants.
Your next step: Choose the measure after checking the building, rather than treating all insulation quotes as equivalent.
What the installer needs to assess
- Moisture, leaks, wall construction and exposure
- Existing insulation and intended thickness/performance
- Ventilation changes, safe clearances, access and making good
What a complete quote should include.
- Existing insulation, roof leaks and moisture issues
- Ventilation, eaves clearance and recessed-light protection
- Hatch, pipes, tanks and any required access or boarding
- For walls: construction type, exposure and suitability
Good questions to ask.
Is insulation always the best first step?
It is often worth assessing early, but the right measure depends on your home. Damp, leaks and ventilation need attention as part of the design; adding insulation alone does not diagnose those problems.
Is the attic price also a wall-insulation price?
No. These are different scopes. Get a separate written specification and grant confirmation for every measure.
Good decisions start with a clear brief.
Use our guides to understand costs, grants and the questions to ask before booking work.
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