Cavity Wall Insulation in Dún Laoghaire
Bonded bead or mineral fibre injected into empty cavities, usually done in a day with no mess inside. Covering East Pier, Sandycove, Glasthule and the surrounding area.
Cavity Wall Insulation for Dún Laoghaire homes
Most of Dún Laoghaire's period housing has solid brick or stone walls, so cavity fill is the exception rather than the rule. It applies to later infill houses, mid-century homes inland and some apartments. For those, we check exposure carefully, since walls facing the sea can take severe driving rain, and recommend a fill only where the wall is suitable.
How homes in Dún Laoghaire lose heat
Period homes here combine solid brick or stone walls, high ceilings, large sash windows and suspended floors, which commonly puts them at E to G. Salt-laden wind off the sea drives draughts and dampness into older walls, so moisture-safe insulation choices matter more than usual.
Typical housing: Victorian and Edwardian terraces and semis between the seafront and Glasthule, period terraces around Sandycove, and newer apartments near the East Pier.
Planning: Large parts of the town are Architectural Conservation Areas with many protected structures, so internal insulation and careful draught-proofing are the usual tools.
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 Dún Laoghaire, see MZCC.ie in Dún Laoghaire.
Cavity Wall Insulation in Dún Laoghaire: questions
Do you carry out cavity wall insulation in Dún Laoghaire?
Yes. We cover Dún Laoghaire and the surrounding Dublin area, including East Pier, Sandycove, Glasthule. Victorian and Edwardian terraces and semis between the seafront and Glasthule, period terraces around Sandycove, and newer apartments near the East Pier.
Is planning permission an issue for cavity wall insulation in Dún Laoghaire?
Large parts of the town are Architectural Conservation Areas with many protected structures, so internal insulation and careful draught-proofing are the usual tools. 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 Dún Laoghaire?
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 Dún Laoghaire.
We cover Dún Laoghaire and the surrounding area. Tell us about your home and we will arrange a visit, usually within a week.