Cavity Wall Insulation in Dublin
Professional cavity wall insulationby Dublin's leading experts. Save up to 30% on energy bills and access generous SEAI grants today.
Why Choose Cavity Wall Insulation?
If your home was built after the 1930s, chances are it has cavity walls—two layers of brick or block with a gap between them. Filling that gap with insulation is one of the quickest wins for energy efficiency.
Our bead injection system fills every void completely, and the whole process takes just a few hours with no mess inside your home.
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Cavity Wall Insulation for Dublin Homes
If your home was built between the 1930s and early 2000s, there's a good chance it has unfilled cavity walls. Filling these cavities with insulation beads is one of the fastest and most affordable upgrades available. Unlike external wall insulation, there's no change to your home's appearance—small holes are drilled in the outer mortar, beads are pumped in, and the holes are sealed.
For the biggest savings, pair cavity wall insulation with attic insulation. Together, these two measures can reduce your heating bills by 40% or more. If you also have a converted attic, consider adding roof insulation at rafter level.
We regularly insulate homes in Swords, Drogheda, Navan, Bray, and Mullingar. Visit our home insulation & grants page for SEAI grant details, or get in touch for a free survey.
Our 4-Step Installation Process
Professional, transparent, and hassle-free from start to finish.
Free Home Survey
We assess your current insulation levels and identify heat loss areas.
Tailored Quote
Receive a detailed breakdown of costs, material options, and potential SEAI grant deductions.
Expert Installation
Our SEAI-registered team installs your insulation quickly, with minimal disruption.
Post-Install Check
A final quality audit ensures optimal coverage and efficiency.
Cavity Wall Insulation FAQs
How do I know if I have cavity walls?expand_more
Most homes built after the 1930s have cavity walls. We can confirm during our free survey by measuring the wall thickness or using a borescope.
How long does it take?expand_more
Cavity wall insulation typically takes just 2-4 hours for a standard home. It's one of the quickest insulation upgrades available.
Is it messy?expand_more
Not at all. Small holes are drilled in the external mortar joints, the insulation beads are pumped in, and the holes are neatly filled. No work is needed inside your home.