The concern that cavity insulation might cause dampness is a common one, however, when properly installed, cavity wall insulation should not cause dampness in your property. The materials used for cavity insulation are typically designed to be water-repellent, helping to prevent the ingress of moisture.

That said, issues can arise if the insulation is not installed correctly or if the property has pre-existing conditions that are not suitable for this type of insulation. For instance, if the exterior walls are in poor condition or the property is exposed to persistent driving rain, there could be a risk of dampness.

To ensure cavity insulation is right for your property and to prevent any potential dampness issues, it’s crucial to have a thorough assessment of your property.