External Wall Insulation ('The Wrap') Across the Midlands: 2026 Costs & €8,000 SEAI Grant
For pre-1980 solid-concrete, mass-concrete, stone, or 9-inch hollow-block homes across the Midlands, External Wall Insulation wraps the entire building envelope in 100mm–150mm of rigid insulation and a new self-cleaning silicone render facade.
External Wall Insulation Costs & SEAI Grants (2026)
Includes scaffolding, starter track, 100mm graphite EPS boards, mechanical fixings, fibreglass reinforcing mesh, insulated window reveals, new aluminium window sills, and breathable silicone thin-coat render.
| Property Type & Wall Area | Typical Gross Cost | 2026 SEAI Wrap Grant | Net Cost After Grant | Typical BER Jump |
|---|---|---|---|---|
| Apartment ( qualifying external walls) | €8,500 – €12,000 | −€3,000 | €5,500 – €9,000 | +2 to 3 BER bands |
| Mid-Terrace House (55–75 m² wall area) | €10,500 – €14,500 | −€3,500 | €7,000 – €11,000 | D2/E1 → B2/B3 |
| Semi-Detached or End-Terrace (95–130 m²) | €16,500 – €22,000 | −€6,000 | €10,500 – €16,000 | E1/F → B1/B2 |
| Detached House or Bungalow (140–210 m²) | €22,000 – €30,000 | −€8,000 | €14,000 – €22,000 | F/G → B2 (Heat-pump ready) |
What Is Included in an NSAI Agrément Certified External Wrap
External Wall Insulation (ETICS) does more than lower your heating bills — it turns the heavy masonry blocks of your house into an internal thermal store while giving the exterior a brand-new, crack-resistant, weatherproof facade:
- Window Sill, Downpipe & Eaves Extensions: Because the outer wall face steps out by ~115mm, every window gets a new powder-coated aluminium or uPVC sill extension, window reveals are insulated with 20mm–30mm high-density XPS board to stop thermal bridging, and rainwater downpipes and gas/ESB meter brackets are extended cleanly.
- Graphite EPS vs Mineral Wool (Rockwool): Standard single- and two-storey detached/semi-D houses use 100mm silver-grey graphite EPS (0.031 W/mK). Solid stone cottages with lime mortar or walls close to a boundary use vapour-permeable dual-density mineral wool boards paired with silicate/silicone render.
Frequently Asked Questions: External Wall Insulation (The Wrap)
Do I need planning permission for External Wall Insulation in the Midlands?
In almost all cases, no — External Wall Insulation is exempt development in Ireland provided the render finish is broadly consistent with the streetscape and the house is not a Protected Structure.
How long does the silicone topcoat render stay clean?
Hydrophobic silicone-resin thin-coat render repels rainwater and algae spores, staying bright for 15–20+ years without needing annual repainting.
Can I claim both the €8,000 External Wall Grant and the €1,500 Attic Grant?
Yes! A detached homeowner can combine the €8,000 External Wall Insulation grant, €1,500 Attic Insulation grant, and €50 BER grant for €9,550 in direct SEAI support.
Related Services & Guides
- Pumped Bonded-Bead Cavity Wall Insulation — €400–€1,200 net after grant
- 300mm Attic Insulation, Raised Walkways & SEAI Grants — €600–€1,500 net after grant
- Internal Wall Insulation (Dry-Lining) & €4,500 SEAI Grant — €1,500–€4,500 SEAI Grant
- Spray Foam Insulation Removal & Compliant 300mm Re-Insulation — Mortgage & BER Compliant
- Complete 2026 SEAI Home Insulation Grant Matrix & Rules — Up to €11,050 Combined
Areas Covered
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