Help & Support

Cavity wall and loft insulation

Cavity wall insulation FAQ's

What is cavity wall insulation?

Information about what cavity wall insulation is, the heat-retaining benefits it brings, and how is can improve the comfort and resale value of your home.

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Do Power NI sell cavity wall insulation?

Power NI, Northern Ireland's energy experts, sell cavity wall insulation, offering value, deals, advice and post-installation support for customers.

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How do I know if my home has cavity walls?

If your house was built after 1920 then it probably has cavity walls. You can check by looking at the pattern of the brick work and the thickness of the walls.

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How long does cavity wall insulation last?

The insulation will last for the life of the building. Our work is covered by the CIGA Guarantee for 25 years.

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How long does it take to install cavity wall insulation?

Find out in this article how long it takes to install cavity wall insulation.

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Does cavity wall insulation need any maintenance?

No cavity wall insulation is maintenance free, once it's installed you no longer need to worry about it.

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I live in a semi-detached, can I still get cavity wall insulation?

Yes! If you live in a semi-detached house you can still get cavity wall insulation with Power NI.

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How do I know when the walls are full?

Power NI have specialist equipment which determines when the walls are full and you have maximum, heat-retaining protection.

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