Common indicators include persistent damp or mould on internal walls, peeling wallpaper or paint, musty odours, cold internal wall surfaces, and moisture issues that continue despite adequate ventilation. A professional survey is required to confirm the cause.

Faulty insulation can result in internal damp patches, mould growth, condensation, cold bridging, reduced energy efficiency, timber decay, corrosion of wall ties, and damage to internal plaster and decorations.

Cavity wall insulation may need to be removed if it has become wet, damaged, displaced, or ineffective. Common causes include rubble or debris left in the cavity during the original construction, which can trap moisture and cause insulation to become sodden. Insulation may also require removal if it was incorrectly installed, leaving voids or uneven [...]

Cavity wall insulation removal is the process of safely extracting insulation materials from the cavity between external walls. This is typically required when insulation has become damp, damaged, poorly installed, or is contributing to property defects such as condensation, mould, or penetrating damp.