Boards fixed to the wall, mesh embedded, render on top. Not a paint job — a new layer of the building that cuts heat loss through solid walls by 30–40%.
Second-wall rule: if you already have cavity fill → next step is IWI or EWI. If you already have IWI → EWI only. If you already have EWI → no second external wall grant.
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If you prefer a quick overview, here are our typical price ranges for standard render finishes in the Dublin area.
| House Size | Gross Range | SEAI Grant | Est. Net Cost |
|---|---|---|---|
| 1 Bed Terrace | €6,500 – €11,500 | - €3,500 | €3,000 – €8,000 |
| 2 Bed Terrace | €8,500 – €13,500 | - €3,500 | €5,000 – €10,000 |
| 3 Bed Semi-D | €16,500 – €21,500 | - €6,000 | €10,500 – €15,500 |
| 4 Bed Detached | €29,500 – €34,500 | - €8,000 | €21,500 – €26,500 |
| 5 Bed Detached | €36,500 – €41,500 | - €8,000 | €28,500 – €33,500 |
Many "cheap" quotes exclude necessary site works. We believe in 100% transparency. Here are the common extras that might push your quote from the lower end to the higher end of the range.
If your meter is on the wall being insulated, Bord Gáis must move it. This is a third-party charge.
Mandatory if our scaffolding needs to rest on a public footpath (common for terraced homes).
If your waste pipes are tight against the wall, they must be extended outward to sit flush with the new insulation.