Cavity Wall Insulation in Mount Merrion
Bonded bead or mineral fibre injected into empty cavities, usually done in a day with no mess inside. Covering Mount Merrion, UCD, Stillorgan and the surrounding area.
Cavity Wall Insulation for Mount Merrion homes
Mount Merrion was built in phases through the 1950s and 1960s, and wall construction varies between them: some houses have early cavity walls that can be filled, others solid block that cannot. A borescope check on your house settles it in minutes. Where filling is possible, it is done in a day from outside and is grant-aided.
How homes in Mount Merrion lose heat
Because the estate was built to a small number of house types, the same weaknesses come up again and again: walls that may be early cavity or solid block depending on the phase, attic insulation from a later top-up that has settled, uninsulated floors and draughty original hatches. Ratings are typically D1 to E1.
Typical housing: 1950s and 1960s estate housing on consistent layouts, mostly semi-detached, with generous gardens.
Planning: Most of Mount Merrion allows external insulation as exempted development, though consistency of the streetscape is worth considering.
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 Mount Merrion, see MZCC.ie in Mount Merrion.
Cavity Wall Insulation in Mount Merrion: questions
Do you carry out cavity wall insulation in Mount Merrion?
Yes. We cover Mount Merrion and the surrounding Dublin area, including Mount Merrion, UCD, Stillorgan. 1950s and 1960s estate housing on consistent layouts, mostly semi-detached, with generous gardens.
Is planning permission an issue for cavity wall insulation in Mount Merrion?
Most of Mount Merrion allows external insulation as exempted development, though consistency of the streetscape is worth considering. 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 Mount Merrion?
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 Mount Merrion.
We cover Mount Merrion and the surrounding area. Tell us about your home and we will arrange a visit, usually within a week.