Cavity Wall Insulation – Frequently Asked Questions
✅ What is cavity wall insulation?
Cavity wall insulation involves injecting insulating material (usually bonded polystyrene beads) into the gap between the inner and outer walls of your home, reducing heat loss and improving energy efficiency.
🏡 Is my home suitable for cavity wall insulation?
Most homes built between 1930 and 2006 with uninsulated cavity walls are suitable. A free survey by our expert team will confirm:
- Cavity width and condition
- External wall type (brick or block)
- Ventilation and moisture considerations
📏 How is cavity wall insulation installed?
We drill small holes in the external wall, inject the insulation beads mixed with bonding agent, and then fill the holes to match the original finish. It’s a non-intrusive process completed from outside the house.
🕒 How long does it take?
The installation typically takes 2 to 3 hours for an average-sized home and causes minimal disruption.
💦 Will cavity insulation cause dampness?
No – when installed professionally, cavity wall insulation should reduce the risk of condensation and damp by keeping internal walls warmer. Our team conducts a moisture risk assessment before any installation.
🧪 What materials do you use?
We use NSAI-certified bonded bead insulation, which is:
- Water-resistant
- Breathable
- Fire-retardant
- Long-lasting (over 25 years)
🛠️ Does the insulation settle over time?
No. The bonding agent used during installation locks the beads in place, ensuring that the insulation remains effective without settling or sagging.
💶 Are there SEAI grants available?
Yes. The SEAI (Sustainable Energy Authority of Ireland) offers grants under the Home Energy Grants programme. Homeowners may be eligible for financial support depending on the property type and current insulation levels. For full details, visit: www.seai.ie
🧱 Will it affect the appearance of my home?
No. The small drill holes used during installation are repaired and colour-matched to blend seamlessly with your existing wall finish.
🌍 What are the benefits of cavity wall insulation?
- Reduces heat loss by up to 35%
- Saves €300–€500 per year on heating costs
- Potential to improve BER rating
- Increases overall home comfort
📞 Still have questions ?
Contact us to arrange a FREE home survey with your local insulation expert:
📞 Freephone: 1800 6464 10
📧 Email: info@premierinsulations.com
🌐 Website: www.premierinsulations.com
📝 Get Your FREE Quote Today
Book your FREE insulation survey today with your local expert – call our freephone: 1800 6464 10 or email info@premierinsulations.com