Cavity Wall Insulation in Dundrum
Bonded bead or mineral fibre injected into empty cavities, usually done in a day with no mess inside. Covering Dundrum Village, Ballinteer, Churchtown and the surrounding area.
Cavity Wall Insulation for Dundrum homes
The Ballinteer, Wesley and Sweetmount estates in Dundrum are classic cavity-wall housing from the 1960s to the 1980s, and many still have empty cavities or a thin partial fill. Filling them is quick, grant-aided at €1,300 for a semi-detached house, and makes a clear difference to comfort. Pre-war homes near the village and in Churchtown have solid walls, so cavity fill does not apply there and internal insulation is the alternative.
How homes in Dundrum lose heat
The two stocks lose heat differently. Pre-war homes have solid or early cavity walls, suspended timber floors and draughty sash windows, often rating E or worse. The estates have cavity walls that were frequently built empty, original 100mm attic insulation and leaky attic hatches, usually landing around C3 to D2.
Typical housing: Period red-bricks and pre-war semis near the village and Churchtown, with 1960s to 1980s estate housing across Ballinteer, Wesley and Sweetmount.
Planning: Parts of Dundrum village sit within an Architectural Conservation Area, which can rule out external insulation on front elevations.
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 Dundrum, see MZCC.ie in Dundrum.
Cavity Wall Insulation in Dundrum: questions
Do you carry out cavity wall insulation in Dundrum?
Yes. We cover Dundrum and the surrounding Dublin area, including Dundrum Village, Ballinteer, Churchtown. Period red-bricks and pre-war semis near the village and Churchtown, with 1960s to 1980s estate housing across Ballinteer, Wesley and Sweetmount.
Is planning permission an issue for cavity wall insulation in Dundrum?
Parts of Dundrum village sit within an Architectural Conservation Area, which can rule out external insulation on front elevations. 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 Dundrum?
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.
Book a free survey in Dundrum.
We cover Dundrum and the surrounding area. Tell us about your home and we will arrange a visit, usually within a week.