Lucan, Co. Dublin

Cavity Wall Insulation in Lucan

Bonded bead or mineral fibre injected into empty cavities, usually done in a day with no mess inside. Covering Lucan village, Esker, Adamstown and the surrounding area.

Cavity Wall Insulation for Lucan homes

Lucan's 1970s and 1980s estates are prime cavity-fill territory, with many cavities still empty. We always confirm the wall type first, because some earlier estate houses here were built with hollow block rather than cavity, and those need external insulation. Where the cavity is suitable, a fill is done in a day from outside and is grant-aided at €1,300 for a semi-detached house.

How homes in Lucan lose heat

The 1970s and 1980s estates are the bulk of the housing and typically sit at C3 to D2, held back by empty or partly filled cavities, thin attic insulation and early glazing. Some earlier estate houses were built with hollow block rather than cavity walls, which need external insulation instead. Adamstown homes are newer and mainly benefit from airtightness checks.

Typical housing: Village terraces and pre-war semis near the centre, 1970s and 1980s estate housing through Esker and the middle of the town, and newer Adamstown developments.

Planning: The village core has conservation context; the estates generally allow external insulation as exempted development.

How cavity wall insulation works

Most Irish houses built from the 1960s onwards have cavity walls: two leaves of block with a gap between. Many were built with the cavity empty or only partly filled, which lets heat escape straight through. Filling the cavity is one of the best value upgrades available.

Read the full guide to cavity wall insulation or, for extensions and whole-house retrofits in Lucan, see MZCC.ie in Lucan.

Cavity Wall Insulation in Lucan: questions

Do you carry out cavity wall insulation in Lucan?

Yes. We cover Lucan and the surrounding Dublin area, including Lucan village, Esker, Adamstown. Village terraces and pre-war semis near the centre, 1970s and 1980s estate housing through Esker and the middle of the town, and newer Adamstown developments.

Is planning permission an issue for cavity wall insulation in Lucan?

The village core has conservation context; the estates generally allow external insulation as exempted development. We check the planning position for your specific house at the free survey, before any work is specified.

Is there a grant for cavity wall insulation in Lucan?

SEAI individual grants for cavity wall insulation are €1,800 for a detached house, €1,300 for a semi-detached or end-of-terrace, €850 for a mid-terrace and €700 for an apartment, with higher rates for qualifying welfare recipients. Homes must have been built and occupied before 2011. Grant amounts are set nationally by SEAI and change from time to time, so check seai.ie before applying. We confirm what your home is likely to qualify for during the survey.

How do I know if my walls have a cavity?

Most Dublin homes built from the 1960s on do. A borescope inspection through a small hole confirms the cavity width and whether there is any insulation in it already.

Can cavity insulation cause damp?

Problems come from filling unsuitable walls, such as very exposed elevations or cavities blocked with debris. That is why we inspect first and only fill walls that are suitable.

Is there any mess inside the house?

No. All drilling and injection is done from outside. Inside, the only change is that the walls feel warmer.

Free home survey

Book a free survey in Lucan.

We cover Lucan and the surrounding area. Tell us about your home and we will arrange a visit, usually within a week.